mirror of
https://github.com/EGroupware/egroupware.git
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1397 lines
41 KiB
PHP
1397 lines
41 KiB
PHP
<?php
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/**
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* eGroupWare generalized SQL Storage Object
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker@outdoor-training.de>
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* @copyright 2002-9 by RalfBecker@outdoor-training.de
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* @version $Id$
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*/
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/**
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* generalized SQL Storage Object
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*
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* the class can be used in following ways:
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* 1) by calling the constructor with an app and table-name or
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* 2) by setting the following documented class-vars in a class derifed from this one
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* Of cause can you derife the class and call the constructor with params.
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*
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* @package etemplate
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* @subpackage api
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* @author RalfBecker-AT-outdoor-training.de
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @todo modify search() to return an interator instead of an array
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*/
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class so_sql
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{
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/**
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* need to be set in the derived class to the db-table-name
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*
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* @var string
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*/
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var $table_name;
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/**
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* db-col-name of autoincrement id or ''
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*
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* @var string
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*/
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var $autoinc_id = '';
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/**
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* all cols in data which are not (direct)in the db, for data_merge
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*
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* @var array
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*/
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var $non_db_cols = array();
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/**
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* 4 turns on the so_sql debug-messages, default 0
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*
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* @var int
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*/
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var $debug = 0;
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/**
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* string to be written to db if a col-value is '', eg. "''" or 'NULL' (default)
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*
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* @var string
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*/
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var $empty_on_write = 'NULL';
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/**
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* total number of entries of last search with start != false
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*
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* @var int|boolean
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*/
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var $total = false;
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/**
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* protected instance or reference (depeding on $no_clone param of constructor) of the db-object
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*
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* @var egw_db
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*/
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protected $db;
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/**
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* unique keys/index, set by derived class or via so_sql($app,$table)
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*
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* @var array
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*/
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var $db_uni_cols = array();
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/**
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* db-col-name / internal-name pairs, set by derived calls or via so_sql($app,$table)
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*
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* @var array
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*/
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var $db_key_cols = array();
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/**
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* db-col-name / internal-name pairs, set by derived calls or via so_sql($app,$table)
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*
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* @var array
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*/
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var $db_data_cols = array();
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/**
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* @var array $db_cols all columns = $db_key_cols + $db_data_cols, set in the constructor
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*/
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var $db_cols = array();
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/**
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* eGW table definition
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*
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* @var array
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*/
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var $table_def = array();
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/**
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* Appname to use in all queries, set via constructor
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*
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* @var string
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*/
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var $app;
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/**
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* holds the content of all columns
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*
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* @var array
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*/
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var $data = array();
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/**
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* Timestaps that need to be adjusted to user-time on reading or saving
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*
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* @var array
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*/
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var $timestamps = array();
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/**
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* Type of timestamps returned by this class (read and search methods), default null means leave them unchanged
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*
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* Possible values:
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* - 'ts'|'integer' convert every timestamp to an integer unix timestamp
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* - 'string' convert every timestamp to a 'Y-m-d H:i:s' string
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* - 'object' convert every timestamp to a egw_time object
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*
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* @var string
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*/
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public $timestamp_type;
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/**
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* Offset in secconds between user and server-time, it need to be add to a server-time to get the user-time
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* or substracted from a user-time to get the server-time
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*
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* @var int
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* @deprecated use egw_time methods instead, as the offset between user and server time is only valid for current time
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*/
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var $tz_offset_s;
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/**
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* Current time in user timezone
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*
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* @var int|string|DateTime format depends on $this->timestamp_type
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*/
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var $now;
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/**
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* Which columns should be searched, if a non-empty string is passed to criteria parameter of search()
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*
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* If not set (by extending class), all data columns will be searched.
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*
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* @var array
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*/
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var $columns_to_search;
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/**
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* Should search return an iterator (true) or an array (false = default)
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*
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* @var boolean
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*/
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public $search_return_iterator = false;
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/**
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* constructor of the class
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*
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* NEED to be called from the constructor of the derived class !!!
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*
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* @param string $app should be set if table-defs to be read from <app>/setup/tables_current.inc.php
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* @param string $table should be set if table-defs to be read from <app>/setup/tables_current.inc.php
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* @param egw_db $db database object, if not the one in $GLOBALS['egw']->db should be used, eg. for an other database
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* @param string $colum_prefix='' column prefix to automatic remove from the column-name, if the column name starts with it
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* @param boolean $no_clone=false can we avoid to clone the db-object, default no
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* new code using appnames and foreach(select(...,$app) can set it to avoid an extra instance of the db object
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* @param string $timestamp_type=null default null=leave them as is, 'ts'|'integer' use integer unix timestamps,
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* 'object' use egw_time objects or 'string' use DB timestamp (Y-m-d H:i:s) string
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*
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* @return so_sql
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*/
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function __construct($app='',$table='',$db=null,$column_prefix='',$no_clone=false,$timestamp_type=null)
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{
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if ($no_clone)
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{
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$this->db = is_object($db) ? $db : $GLOBALS['egw']->db;
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}
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else
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{
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$this->db = is_object($db) ? clone($db) : clone($GLOBALS['egw']->db);
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}
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$this->db_cols = $this->db_key_cols + $this->db_data_cols;
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if ($app)
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{
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$this->app = $app;
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if (!$no_clone) $this->db->set_app($app);
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if ($table) $this->setup_table($app,$table,$column_prefix);
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}
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$this->init();
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if ((int) $this->debug >= 4)
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{
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echo "<p>so_sql('$app','$table')</p>\n";
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_debug_array($this);
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}
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$this->set_times($timestamp_type);
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}
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/**
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* Set class vars timestamp_type, now and tz_offset_s
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*
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* @param string|boolean $timestamp_type=false default false do NOT set time_stamptype,
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* null=leave them as is, 'ts'|'integer' use integer unix timestamps, 'object' use egw_time objects,
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* 'string' use DB timestamp (Y-m-d H:i:s) string
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*/
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public function set_times($timestamp_type=false)
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{
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if ($timestamp_type !== false) $this->timestamp_type = $timestamp_type;
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// set current time
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switch($this->timestamp_type)
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{
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case 'object':
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$this->now = new egw_time('now');
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break;
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case 'string':
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$this->now = egw_time::to('now',egw_time::DATABASE);
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break;
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default:
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$this->now = egw_time::to('now','ts');
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}
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$this->tz_offset_s = egw_time::tz_offset_s();
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}
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/**
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* php4 constructor
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*
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* @deprecated use __construct
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*/
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function so_sql($app='',$table='',$db=null,$column_prefix='',$no_clone=false)
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{
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self::__construct($app,$table,$db,$column_prefix,$no_clone);
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}
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/**
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* sets up the class for an app and table (by using the table-definition of $app/setup/tables_current.inc.php
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*
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* If you need a more complex conversation then just removing the column_prefix, you have to do so in a derifed class !!!
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*
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* @param string $app app-name $table belongs too
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* @param string $table table-name
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* @param string $colum_prefix='' column prefix to automatic remove from the column-name, if the column name starts with it
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*/
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function setup_table($app,$table,$colum_prefix='')
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{
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$this->table_name = $table;
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$this->table_def = $this->db->get_table_definitions($app,$table);
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if (!$this->table_def || !is_array($this->table_def['fd']))
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{
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echo "<p>so_sql::setup_table('$app','$table'): No table definitions found !!!<br>\n".function_backtrace()."</p>\n";
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}
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$this->db_key_cols = $this->db_data_cols = $this->db_cols = array();
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$this->autoinc_id = '';
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$len_prefix = strlen($colum_prefix);
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foreach($this->table_def['fd'] as $col => $def)
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{
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$name = $col;
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if ($len_prefix && substr($name,0,$len_prefix) == $colum_prefix)
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{
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$name = substr($col,$len_prefix);
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}
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if (in_array($col,$this->table_def['pk']))
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{
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$this->db_key_cols[$col] = $name;
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}
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else
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{
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$this->db_data_cols[$col] = $name;
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}
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$this->db_cols[$col] = $name;
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if ($def['type'] == 'auto')
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{
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$this->autoinc_id = $col;
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}
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foreach($this->table_def['uc'] as $k => $uni_index)
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{
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if (is_array($uni_index) && in_array($name,$uni_index))
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{
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$this->db_uni_cols[$k][$col] = $name;
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}
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elseif($name === $uni_index)
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{
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$this->db_uni_cols[$col] = $name;
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}
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}
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}
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}
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/**
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* Add all timestamp fields to $this->timestamps to get automatically converted to usertime
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*
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*/
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function convert_all_timestamps()
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{
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$check_already_included = !empty($this->timestamps);
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foreach($this->table_def['fd'] as $name => $data)
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{
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if ($data['type'] == 'timestamp' && (!$check_already_included || !in_array($name,$this->timestamps)))
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{
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$this->timestamps[] = $name;
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}
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}
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}
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/**
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* merges in new values from the given new data-array
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*
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* @param $new array in form col => new_value with values to set
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*/
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function data_merge($new)
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{
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if ((int) $this->debug >= 4) echo "<p>so_sql::data_merge(".print_r($new,true).")</p>\n";
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if (!is_array($new) || !count($new))
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{
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return;
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}
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foreach($this->db_cols as $db_col => $col)
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{
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if (array_key_exists($col,$new))
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{
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$this->data[$col] = $new[$col];
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}
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}
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foreach($this->non_db_cols as $db_col => $col)
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{
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if (array_key_exists($col,$new))
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{
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$this->data[$col] = $new[$col];
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}
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}
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if (isset($new[self::USER_TIMEZONE_READ]))
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{
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$this->data[self::USER_TIMEZONE_READ] = $new[self::USER_TIMEZONE_READ];
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}
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if ((int) $this->debug >= 4) _debug_array($this->data);
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}
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/**
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* changes the data from the db-format to your work-format
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*
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* It gets called everytime when data is read from the db.
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* This default implementation only converts the timestamps mentioned in $this->timestamps from server to user time.
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* You can reimplement it in a derived class like this:
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*
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* function db2data($data=null)
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* {
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* if (($intern = !is_array($data)))
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* {
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* $data =& $this->data;
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* }
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* // do your own modifications here
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*
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* return parent::db2data($intern ? null : $data); // important to use null, if $intern!
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* }
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*
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* @param array $data=null if given works on that array and returns result, else works on internal data-array
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* @return array
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*/
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function db2data($data=null)
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{
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if (!is_array($data))
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{
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$data = &$this->data;
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}
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if ($this->timestamps)
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{
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foreach($this->timestamps as $name)
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{
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if (isset($data[$name]) && $data[$name])
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{
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$data[$name] = egw_time::server2user($data[$name],$this->timestamp_type);
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}
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}
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}
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return $data;
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}
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/**
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* changes the data from your work-format to the db-format
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*
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* It gets called everytime when data gets writen into db or on keys for db-searches.
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* This default implementation only converts the timestamps mentioned in $this->timestampfs from user to server time.
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* You can reimplement it in a derived class like this:
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*
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* function data2db($data=null)
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* {
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* if (($intern = !is_array($data)))
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* {
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* $data =& $this->data;
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* }
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* // do your own modifications here
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*
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* return parent::data2db($intern ? null : $data); // important to use null, if $intern!
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* }
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*
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* @param array $data=null if given works on that array and returns result, else works on internal data-array
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* @return array
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*/
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function data2db($data=null)
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{
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if (!is_array($data))
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{
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$data = &$this->data;
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}
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if ($this->timestamps)
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{
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foreach($this->timestamps as $name)
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{
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if (isset($data[$name]) && $data[$name])
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{
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$data[$name] = egw_time::user2server($data[$name],$this->timestamp_type);
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}
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}
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}
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return $data;
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}
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/**
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* initializes data with the content of key
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*
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* @param array $keys=array() array with keys in form internalName => value
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* @return array internal data after init
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*/
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function init($keys=array())
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{
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$this->data = array();
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$this->db2data();
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$this->data_merge($keys);
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return $this->data;
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}
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/**
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* Name of automatically set user timezone field from read
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*/
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const USER_TIMEZONE_READ = 'user_timezone_read';
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/**
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* reads row matched by key and puts all cols in the data array
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*
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* @param array $keys array with keys in form internalName => value, may be a scalar value if only one key
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* @param string|array $extra_cols='' string or array of strings to be added to the SELECT, eg. "count(*) as num"
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* @param string $join='' sql to do a join, added as is after the table-name, eg. ", table2 WHERE x=y" or
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* @return array|boolean data if row could be retrived else False
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*/
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function read($keys,$extra_cols='',$join='')
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{
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if (!is_array($keys))
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{
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$pk = array_values($this->db_key_cols);
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if ($pk) $keys = array($pk[0] => $keys);
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}
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$this->init($keys);
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$this->data2db();
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$query = false;
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foreach ($this->db_key_cols as $db_col => $col)
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{
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if ($this->data[$col] != '')
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{
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$query[$db_col] = $this->data[$col];
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}
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}
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if (!$query) // no primary key in keys, lets try the data_cols for a unique key
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{
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foreach($this->db_uni_cols as $db_col => $col)
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{
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if (!is_array($col) && $this->data[$col] != '')
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{
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$query[$db_col] = $this->data[$col];
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}
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elseif(is_array($col))
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{
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$q = array();
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foreach($col as $db_c => $c)
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{
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if ($this->data[$col] == '')
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{
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$q = null;
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break;
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}
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$q[$db_c] = $this->data[$c];
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}
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if ($q) $query += $q;
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}
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}
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}
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if (!$query) // no unique key in keys, lets try everything else
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{
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foreach($this->db_data_cols as $db_col => $col)
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{
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if ($this->data[$col] != '')
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{
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$query[$db_col] = $this->data[$col];
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}
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}
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}
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if (!$query) // keys has no cols
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{
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$this->db2data();
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return False;
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}
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if ($join) // Prefix the columns with the table-name, as they might exist in the join
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{
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foreach($query as $col => $val)
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{
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if (is_int($col) || strpos($join,$col) === false) continue;
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$query[] = $this->db->expression($this->table_name,$this->table_name.'.',array($col=>$val));
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unset($query[$col]);
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}
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}
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foreach($this->db->select($this->table_name,'*'.($extra_cols?','.(is_array($extra_cols)?implode(',',$extra_cols):$extra_cols):''),
|
|
$query,__LINE__,__FILE__,False,'',$this->app,0,$join) as $row)
|
|
{
|
|
$cols = $this->db_cols;
|
|
if ($extra_cols) // extra columns to report
|
|
{
|
|
foreach(is_array($extra_cols) ? $extra_cols : array($extra_cols) as $col)
|
|
{
|
|
if (FALSE!==stripos($col,' as ')) $col = preg_replace('/^.* as *([a-z0-9_]+) *$/i','\\1',$col);
|
|
$cols[$col] = $col;
|
|
}
|
|
}
|
|
foreach ($cols as $db_col => $col)
|
|
{
|
|
$this->data[$col] = $row[$db_col];
|
|
}
|
|
$this->db2data();
|
|
|
|
// store user timezone used for reading
|
|
$this->data[self::USER_TIMEZONE_READ] = egw_time::$user_timezone->getName();
|
|
|
|
if ((int) $this->debug >= 4)
|
|
{
|
|
echo "data =\n"; _debug_array($this->data);
|
|
}
|
|
return $this->data;
|
|
}
|
|
if ($this->autoinc_id)
|
|
{
|
|
unset($this->data[$this->db_key_cols[$this->autoinc_id]]);
|
|
}
|
|
if ((int) $this->debug >= 4) echo "nothing found !!!</p>\n";
|
|
|
|
$this->db2data();
|
|
|
|
return False;
|
|
}
|
|
|
|
/**
|
|
* saves the content of data to the db
|
|
*
|
|
* @param array $keys=null if given $keys are copied to data before saveing => allows a save as
|
|
* @param string|array $extra_where=null extra where clause, eg. to check an etag, returns true if no affected rows!
|
|
* @return int|boolean 0 on success, or errno != 0 on error, or true if $extra_where is given and no rows affected
|
|
*/
|
|
function save($keys=null,$extra_where=null)
|
|
{
|
|
if (is_array($keys) && count($keys)) $this->data_merge($keys);
|
|
|
|
// check if data contains user timezone during read AND user changed timezone since then
|
|
// --> load old timezone for the rest of this request
|
|
// this only a grude hack, better handle this situation in app code:
|
|
// history logging eg. depends on old data read before calling save, which is then in new timezone!
|
|
// anyway it's better fixing it here then not fixing it at all ;-)
|
|
if (isset($this->data[self::USER_TIMEZONE_READ]) && $this->data[self::USER_TIMEZONE_READ] != egw_time::$user_timezone->getName())
|
|
{
|
|
//echo "<p>".__METHOD__."() User change TZ since read! tz-read=".$this->data[self::USER_TIMEZONE_READ].' != current-tz='.egw_time::$user_timezone->getName()." --> fixing</p>\n";
|
|
error_log(__METHOD__."() User changed TZ since read! tz-read=".$this->data[self::USER_TIMEZONE_READ].' != current-tz='.egw_time::$user_timezone->getName()." --> fixing</p>");
|
|
$GLOBALS['egw_info']['user']['preferences']['common']['tz'] = $this->data[self::USER_TIMEZONE_READ];
|
|
egw_time::setUserPrefs($this->data[self::USER_TIMEZONE_READ]);
|
|
$this->set_times();
|
|
}
|
|
$this->data2db();
|
|
|
|
if ((int) $this->debug >= 4) { echo "so_sql::save(".print_r($keys,true).") autoinc_id='$this->autoinc_id', data="; _debug_array($this->data); }
|
|
|
|
if ($this->autoinc_id && !$this->data[$this->db_key_cols[$this->autoinc_id]]) // insert with auto id
|
|
{
|
|
foreach($this->db_cols as $db_col => $col)
|
|
{
|
|
if (!$this->autoinc_id || $db_col != $this->autoinc_id) // not write auto-inc-id
|
|
{
|
|
if (!array_key_exists($col,$this->data) && // handling of unset columns in $this->data
|
|
(isset($this->table_def['fd'][$db_col]['default']) || // we have a default value
|
|
!isset($this->table_def['fd'][$db_col]['nullable']) || $this->table_def['fd'][$db_col]['nullable'])) // column is nullable
|
|
{
|
|
continue; // no need to write that (unset) column
|
|
}
|
|
$data[$db_col] = (string) $this->data[$col] === '' && $this->empty_on_write == 'NULL' ? null : $this->data[$col];
|
|
}
|
|
}
|
|
$this->db->insert($this->table_name,$data,false,__LINE__,__FILE__,$this->app);
|
|
|
|
if ($this->autoinc_id)
|
|
{
|
|
$this->data[$this->db_key_cols[$this->autoinc_id]] = $this->db->get_last_insert_id($this->table_name,$this->autoinc_id);
|
|
}
|
|
}
|
|
else // insert in table without auto id or update of existing row, dont write colums unset in $this->data
|
|
{
|
|
foreach($this->db_data_cols as $db_col => $col)
|
|
{
|
|
// we need to update columns set to null: after a $this->data[$col]=null:
|
|
// - array_key_exits($col,$this->data) === true
|
|
// - isset($this->data[$col]) === false
|
|
if (!array_key_exists($col,$this->data) && // handling of unset columns in $this->data
|
|
($this->autoinc_id || // update of table with auto id or
|
|
isset($this->table_def['fd'][$db_col]['default']) || // we have a default value or
|
|
!isset($this->table_def['fd'][$db_col]['nullable']) || $this->table_def['fd'][$db_col]['nullable'])) // column is nullable
|
|
{
|
|
continue; // no need to write that (unset) column
|
|
}
|
|
$data[$db_col] = !is_object($this->data[$col]) && (string) $this->data[$col] === '' && $this->empty_on_write == 'NULL' ? null : $this->data[$col];
|
|
}
|
|
// allow to add direct sql updates, eg. "etag=etag+1" with int keys
|
|
if (is_array($keys) && isset($keys[0]))
|
|
{
|
|
for($n=0; isset($keys[$n]); ++$n)
|
|
{
|
|
$data[] = $keys[$n];
|
|
}
|
|
}
|
|
$keys = $extra_where;
|
|
foreach($this->db_key_cols as $db_col => $col)
|
|
{
|
|
$keys[$db_col] = $this->data[$col];
|
|
}
|
|
if (!$data && !$this->autoinc_id) // happens if all columns are in the primary key
|
|
{
|
|
$data = $keys;
|
|
$keys = False;
|
|
}
|
|
if ($this->autoinc_id)
|
|
{
|
|
$this->db->update($this->table_name,$data,$keys,__LINE__,__FILE__,$this->app);
|
|
if (($nothing_affected = !$this->db->Errno && !$this->db->affected_rows()) && $extra_where)
|
|
{
|
|
return true; // extra_where not met, eg. etag wrong
|
|
}
|
|
}
|
|
// always try an insert if we have no autoinc_id, as we dont know if the data exists
|
|
if (!$this->autoinc_id || $nothing_affected)
|
|
{
|
|
$this->db->insert($this->table_name,$data,$keys,__LINE__,__FILE__,$this->app);
|
|
}
|
|
}
|
|
$this->db2data();
|
|
|
|
return $this->db->Errno;
|
|
}
|
|
|
|
/**
|
|
* Update only the given fields, if the primary key is not given, it will be taken from $this->data
|
|
*
|
|
* @param array $fields
|
|
* @param boolean $merge=true if true $fields will be merged with $this->data (after update!), otherwise $this->data will be just $fields
|
|
* @return int|boolean 0 on success, or errno != 0 on error, or true if $extra_where is given and no rows affected
|
|
*/
|
|
function update($fields,$merge=true)
|
|
{
|
|
if ($merge) $this->data_merge($fields);
|
|
|
|
$fields = $this->data2db($fields);
|
|
|
|
// extract the keys from $fields or - if not set there - from $this->data
|
|
$keys = array();
|
|
foreach($this->db_key_cols as $col => $name)
|
|
{
|
|
$keys[$col] = isset($fields[$name]) ? $fields[$name] : $this->data[$name];
|
|
unset($fields[$name]);
|
|
}
|
|
// extract the data from $fields
|
|
$data = array();
|
|
foreach($this->db_data_cols as $col => $name)
|
|
{
|
|
if (array_key_exists($name,$fields))
|
|
{
|
|
$data[$col] = $fields[$name];
|
|
unset($fields[$name]);
|
|
}
|
|
}
|
|
// add direct sql like 'etag=etag+1' (it has integer keys)
|
|
foreach($fields as $key => $value)
|
|
{
|
|
if (is_int($key))
|
|
{
|
|
$data[] = $value;
|
|
}
|
|
}
|
|
if (!$data)
|
|
{
|
|
return 0; // nothing to update
|
|
}
|
|
if (!$this->db->update($this->table_name,$data,$keys,__LINE__,__FILE__,$this->app))
|
|
{
|
|
return $this->db->Errno;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* deletes row representing keys in internal data or the supplied $keys if != null
|
|
*
|
|
* @param array|int $keys=null if given array with col => value pairs to characterise the rows to delete, or integer autoinc id
|
|
* @param boolean $only_return_query=false return $query of delete call to db object, but not run it (used by so_sql_cf!)
|
|
* @return int|array affected rows, should be 1 if ok, 0 if an error or array with id's if $only_return_ids
|
|
*/
|
|
function delete($keys=null,$only_return_query=false)
|
|
{
|
|
if ($this->autoinc_id && $keys && !is_array($keys))
|
|
{
|
|
$keys = array($this->autoinc_id => $keys);
|
|
}
|
|
if (!is_array($keys) || !count($keys)) // use internal data
|
|
{
|
|
$data = $this->data;
|
|
$keys = $this->db_key_cols;
|
|
}
|
|
else // data and keys are supplied in $keys
|
|
{
|
|
$data = $keys; $keys = array();
|
|
foreach($this->db_cols as $db_col => $col)
|
|
{
|
|
if (isset($data[$col]))
|
|
{
|
|
$keys[$db_col] = $col;
|
|
}
|
|
}
|
|
}
|
|
$data = $this->data2db($data);
|
|
|
|
foreach($keys as $db_col => $col)
|
|
{
|
|
$query[$db_col] = $data[$col];
|
|
}
|
|
if ($only_return_query) return $query;
|
|
|
|
$this->db->delete($this->table_name,$query,__LINE__,__FILE__,$this->app);
|
|
|
|
return $this->db->affected_rows();
|
|
}
|
|
|
|
/**
|
|
* searches db for rows matching searchcriteria
|
|
*
|
|
* '*' and '?' are replaced with sql-wildcards '%' and '_'
|
|
*
|
|
* For a union-query you call search for each query with $start=='UNION' and one more with only $order_by and $start set to run the union-query.
|
|
*
|
|
* @param array|string $criteria array of key and data cols, OR string with search pattern (incl. * or ? as wildcards)
|
|
* @param boolean|string|array $only_keys=true True returns only keys, False returns all cols. or
|
|
* comma seperated list or array of columns to return
|
|
* @param string $order_by='' fieldnames + {ASC|DESC} separated by colons ',', can also contain a GROUP BY (if it contains ORDER BY)
|
|
* @param string|array $extra_cols='' string or array of strings to be added to the SELECT, eg. "count(*) as num"
|
|
* @param string $wildcard='' appended befor and after each criteria
|
|
* @param boolean $empty=false False=empty criteria are ignored in query, True=empty have to be empty in row
|
|
* @param string $op='AND' defaults to 'AND', can be set to 'OR' too, then criteria's are OR'ed together
|
|
* @param mixed $start=false if != false, return only maxmatch rows begining with start, or array($start,$num), or 'UNION' for a part of a union query
|
|
* @param array $filter=null if set (!=null) col-data pairs, to be and-ed (!) into the query without wildcards
|
|
* @param string $join='' sql to do a join, added as is after the table-name, eg. "JOIN table2 ON x=y" or
|
|
* "LEFT JOIN table2 ON (x=y AND z=o)", Note: there's no quoting done on $join, you are responsible for it!!!
|
|
* @param boolean $need_full_no_count=false If true an unlimited query is run to determine the total number of rows, default false
|
|
* @todo return an interator instead of an array
|
|
* @return array|NULL array of matching rows (the row is an array of the cols) or NULL
|
|
*/
|
|
function &search($criteria,$only_keys=True,$order_by='',$extra_cols='',$wildcard='',$empty=False,$op='AND',$start=false,$filter=null,$join='',$need_full_no_count=false)
|
|
{
|
|
if ((int) $this->debug >= 4) echo "<p>so_sql::search(".print_r($criteria,true).",'$only_keys','$order_by',".print_r($extra_cols,true).",'$wildcard','$empty','$op','$start',".print_r($filter,true).",'$join')</p>\n";
|
|
|
|
// if extending class or instanciator set columns to search, convert string criteria to array
|
|
if ($criteria && !is_array($criteria))
|
|
{
|
|
$criteria = $this->search2criteria($criteria,$wildcard,$op);
|
|
}
|
|
if (!is_array($criteria))
|
|
{
|
|
$query = $criteria;
|
|
}
|
|
else
|
|
{
|
|
$criteria = $this->data2db($criteria);
|
|
foreach($criteria as $col => $val)
|
|
{
|
|
if (is_int($col))
|
|
{
|
|
$query[] = $val;
|
|
}
|
|
elseif ($empty || $val != '')
|
|
{
|
|
if (!($db_col = array_search($col,$this->db_cols)))
|
|
{
|
|
$db_col = $col;
|
|
}
|
|
if ($val === '')
|
|
{
|
|
if (isset($this->table_def['fd'][$db_col]) &&
|
|
$this->table_def['fd'][$db_col]['type'] == 'varchar' &&
|
|
$this->table_def['fd'][$db_col]['nullable'] !== false)
|
|
{
|
|
unset($criteria[$col]);
|
|
$query[] = '(' . $db_col . ' IS NULL OR ' . $db_col . " = '')";
|
|
}
|
|
else
|
|
{
|
|
$query[$db_col] = '';
|
|
}
|
|
}
|
|
elseif ($wildcard || $criteria[$col][0] == '!' ||
|
|
is_string($criteria[$col]) && (strpos($criteria[$col],'*')!==false || strpos($criteria[$col],'?')!==false))
|
|
{
|
|
$cmp_op = ' '.$this->db->capabilities['case_insensitive_like'].' ';
|
|
$negate = false;
|
|
if ($criteria[$col][0] == '!')
|
|
{
|
|
$cmp_op = ' NOT'.$cmp_op;
|
|
$criteria[$col] = substr($criteria[$col],1);
|
|
$negate = true;
|
|
}
|
|
foreach(explode(' ',$criteria[$col]) as $crit)
|
|
{
|
|
$query[] = ($negate ? ' ('.$db_col.' IS NULL OR ' : '').$db_col.$cmp_op.
|
|
$this->db->quote($wildcard.str_replace(array('%','_','*','?'),array('\\%','\\_','%','_'),$crit).$wildcard).
|
|
($negate ? ') ' : '');
|
|
}
|
|
}
|
|
elseif (strpos($db_col,'.') !== false) // we have a table-name specified
|
|
{
|
|
list($table,$only_col) = explode('.',$db_col);
|
|
|
|
if (is_array($val) && count($val) > 1)
|
|
{
|
|
array_walk($val,array($this->db,'quote'),$this->table_def['fd'][$only_col]['type']);
|
|
$query[] = $sql = $db_col.' IN (' .implode(',',$val).')';
|
|
}
|
|
else
|
|
{
|
|
$query[] = $db_col.'='.$this->db->quote(is_array($val)?array_shift($val):$val,$this->table_def['fd'][$only_col]['type']);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$query[$db_col] = $criteria[$col];
|
|
}
|
|
}
|
|
}
|
|
if (is_array($query) && $op != 'AND') $query = $this->db->column_data_implode(' '.$op.' ',$query);
|
|
}
|
|
if (is_array($filter))
|
|
{
|
|
$db_filter = array();
|
|
$data2db_filter = $this->data2db($filter);
|
|
if (!is_array($data2db_filter)) {
|
|
echo function_backtrace()."<br/>\n";
|
|
echo "filter=";_debug_array($filter);
|
|
echo "data2db(filter)=";_debug_array($data2db_filter);
|
|
}
|
|
foreach($data2db_filter as $col => $val)
|
|
{
|
|
if ($val !== '')
|
|
{
|
|
// check if a db-internal name conversation necessary
|
|
if (!is_int($col) && ($c = array_search($col,$this->db_cols)))
|
|
{
|
|
$col = $c;
|
|
}
|
|
if(is_int($col))
|
|
{
|
|
$db_filter[] = $val;
|
|
}
|
|
elseif ($val === "!''")
|
|
{
|
|
$db_filter[] = $col." != ''";
|
|
}
|
|
else
|
|
{
|
|
$db_filter[$col] = $val;
|
|
}
|
|
}
|
|
}
|
|
if ($query)
|
|
{
|
|
if ($op != 'AND')
|
|
{
|
|
$db_filter[] = '('.$this->db->column_data_implode(' '.$op.' ',$query).')';
|
|
}
|
|
else
|
|
{
|
|
$db_filter = array_merge($db_filter,$query);
|
|
}
|
|
}
|
|
$query = $db_filter;
|
|
}
|
|
if ((int) $this->debug >= 4)
|
|
{
|
|
echo "<p>so_sql::search(,only_keys=$only_keys,order_by='$order_by',wildcard='$wildcard',empty=$empty,$op,start='$start',".print_r($filter,true).") query=".print_r($query,true).", total='$this->total'</p>\n";
|
|
echo "<br>criteria = "; _debug_array($criteria);
|
|
}
|
|
if ($only_keys === true)
|
|
{
|
|
$colums = implode(',',array_keys($this->db_key_cols));
|
|
}
|
|
elseif (is_array($only_keys))
|
|
{
|
|
$colums = array();
|
|
foreach($only_keys as $key => $col)
|
|
{
|
|
$colums[] = ($db_col = array_search($col,$this->db_cols)) ? $db_col : $col;
|
|
}
|
|
$colums = implode(',',$colums);
|
|
}
|
|
elseif (!$only_keys)
|
|
{
|
|
$colums = '*';
|
|
}
|
|
else
|
|
{
|
|
$colums = $only_keys;
|
|
}
|
|
if ($extra_cols) $colums .= ($colums ? ',' : '').(is_array($extra_cols) ? implode(',',$extra_cols) : $extra_cols);
|
|
|
|
$num_rows = 0; // as spec. in max_matches in the user-prefs
|
|
if (is_array($start)) list($start,$num_rows) = $start;
|
|
|
|
if ($order_by && stripos($order_by,'ORDER BY')===false && stripos($order_by,'GROUP BY')===false)
|
|
{
|
|
$order_by = 'ORDER BY '.$order_by;
|
|
}
|
|
static $union = array();
|
|
static $union_cols = array();
|
|
if ($start === 'UNION' || $union)
|
|
{
|
|
if ($start === 'UNION')
|
|
{
|
|
$union[] = array(
|
|
'table' => $this->table_name,
|
|
'cols' => $colums,
|
|
'where' => $query,
|
|
'append' => $order_by,
|
|
'join' => $join,
|
|
);
|
|
if (!$union_cols) // union used the colum-names of the first query
|
|
{
|
|
$union_cols = $this->_get_columns($only_keys,$extra_cols);
|
|
}
|
|
return true; // waiting for further calls, before running the union-query
|
|
}
|
|
// running the union query now
|
|
if ($start !== false) // need to get the total too, saved in $this->total
|
|
{
|
|
if ($this->db->Type == 'mysql' && $this->db->ServerInfo['version'] >= 4.0)
|
|
{
|
|
$union[0]['cols'] = ($mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ').$union[0]['cols'];
|
|
}
|
|
else // cant do a count, have to run the query without limit
|
|
{
|
|
$this->total = $this->db->union($union,__LINE__,__FILE__)->NumRows();
|
|
}
|
|
}
|
|
$rs = $this->db->union($union,__LINE__,__FILE__,$order_by,$start,$num_rows);
|
|
|
|
$cols = $union_cols;
|
|
$union = $union_cols = array();
|
|
}
|
|
else // no UNION
|
|
{
|
|
if ($start !== false) // need to get the total too, saved in $this->total
|
|
{
|
|
if ($this->db->Type == 'mysql' && $this->db->ServerInfo['version'] >= 4.0)
|
|
{
|
|
$mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ';
|
|
}
|
|
elseif (!$need_full_no_count && (!$join || stripos($join,'LEFT JOIN')!==false))
|
|
{
|
|
$this->total = $this->db->select($this->table_name,'COUNT(*)',$query,__LINE__,__FILE__,false,'',$this->app,0,$join)->fetchColumn();
|
|
}
|
|
else // cant do a count, have to run the query without limit
|
|
{
|
|
$this->total = $this->db->select($this->table_name,$colums,$query,__LINE__,__FILE__,false,$order_by,false,0,$join)->NumRows();
|
|
}
|
|
}
|
|
$rs = $this->db->select($this->table_name,$mysql_calc_rows.$colums,$query,__LINE__,__FILE__,
|
|
$start,$order_by,$this->app,$num_rows,$join);
|
|
|
|
$cols = $this->_get_columns($only_keys,$extra_cols);
|
|
}
|
|
if ((int) $this->debug >= 4) echo "<p>sql='{$this->db->Query_ID->sql}'</p>\n";
|
|
|
|
if ($mysql_calc_rows)
|
|
{
|
|
$this->total = $this->db->query('SELECT FOUND_ROWS()')->fetchColumn();
|
|
}
|
|
// ToDo: Implement that as an iterator, as $rs is also an interator and we could return one instead of an array
|
|
if ($this->search_return_iterator)
|
|
{
|
|
return new so_sql_db2data_iterator($this,$rs);
|
|
}
|
|
$arr = array();
|
|
$n = 0;
|
|
if ($rs) foreach($rs as $row)
|
|
{
|
|
$data = array();
|
|
foreach($cols as $db_col => $col)
|
|
{
|
|
$data[$col] = $row[$db_col];
|
|
}
|
|
$arr[] = $this->db2data($data);
|
|
$n++;
|
|
}
|
|
return $n ? $arr : null;
|
|
}
|
|
|
|
/**
|
|
* Return criteria array for a given search pattern
|
|
*
|
|
* @param string $pattern search pattern incl. * or ? as wildcard, if no wildcards used we append and prepend one!
|
|
* @param string &$wildcard='' on return wildcard char to use, if pattern does not already contain wildcards!
|
|
* @param string &$op='AND' on return boolean operation to use, if pattern does not start with ! we use OR else AND
|
|
* @param string $extra_col=null extra column to search
|
|
* @return array or column => value pairs
|
|
*/
|
|
protected function search2criteria($pattern,&$wildcard='',&$op='AND',$extra_col=null)
|
|
{
|
|
if (empty($pattern) || is_array($pattern)) return $pattern;
|
|
|
|
// prepend and append extra wildcard %, if pattern does NOT already contain wildcards
|
|
if (strpos($pattern,'*') === false && strpos($pattern,'?') === false)
|
|
{
|
|
$wildcard = '%'; // if pattern contains no wildcards, add them before AND after the pattern
|
|
}
|
|
else
|
|
{
|
|
$wildcard = ''; // no extra wildcard, if pattern already contains some
|
|
}
|
|
if ($pattern[0] != '!') $op = 'OR';
|
|
$criteria = array();
|
|
foreach(is_null($this->columns_to_search) ? $this->db_cols : $this->columns_to_search as $col)
|
|
{
|
|
$criteria[$col] = $pattern;
|
|
}
|
|
if ($extra_col) $criteria[$extra_col] = $pattern;
|
|
|
|
return $criteria;
|
|
}
|
|
|
|
/**
|
|
* extract the requested columns from $only_keys and $extra_cols param of a search
|
|
*
|
|
* @internal
|
|
* @param boolean|string $only_keys=true True returns only keys, False returns all cols. comma seperated list of keys to return
|
|
* @param string|array $extra_cols='' string or array of strings to be added to the SELECT, eg. "count(*) as num"
|
|
* @return array with columns as db-name => internal-name pairs
|
|
*/
|
|
function _get_columns($only_keys,$extra_cols)
|
|
{
|
|
//echo "_get_columns() only_keys="; _debug_array($only_keys); echo "extra_cols="; _debug_array($extra_cols);
|
|
if ($only_keys === true) // only primary key
|
|
{
|
|
$cols = $this->db_key_cols;
|
|
}
|
|
else
|
|
{
|
|
$cols = array();
|
|
foreach(is_array($only_keys) ? $only_keys : explode(',',str_replace(array('DISTINCT ','distinct '),'',$only_keys)) as $col)
|
|
{
|
|
if (!$col || $col == '*' || $col == $this->table_name.'.*') // all columns
|
|
{
|
|
$cols = array_merge($cols,$this->db_cols);
|
|
}
|
|
else // only the specified columns
|
|
{
|
|
if (stripos($col,'as')!==false) $col = preg_replace('/^.*as +([a-z0-9_]+) *$/i','\\1',$col);
|
|
if (($db_col = array_search($col,$this->db_cols)) !== false)
|
|
{
|
|
$cols[$db_col] = $col;
|
|
}
|
|
else
|
|
{
|
|
$cols[$col] = isset($this->db_cols[$col]) ? $this->db_cols[$col] : $col;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($extra_cols) // extra columns to report
|
|
{
|
|
foreach(is_array($extra_cols) ? $extra_cols : explode(',',$extra_cols) as $col)
|
|
{
|
|
if (stripos($col,'as ')!==false) $col = preg_replace('/^.*as +([a-z0-9_]+) *$/i','\\1',$col);
|
|
if (($db_col = array_search($col,$this->db_cols)) !== false)
|
|
{
|
|
$cols[$db_col] = $col;
|
|
}
|
|
else
|
|
{
|
|
$cols[$col] = isset($this->db_cols[$col]) ? $this->db_cols[$col] : $col;
|
|
}
|
|
}
|
|
}
|
|
return $cols;
|
|
}
|
|
|
|
/**
|
|
* query rows for the nextmatch widget
|
|
*
|
|
* @param array $query with keys 'start', 'search', 'order', 'sort', 'col_filter'
|
|
* For other keys like 'filter', 'cat_id' you have to reimplement this method in a derived class.
|
|
* @param array &$rows returned rows/competitions
|
|
* @param array &$readonlys eg. to disable buttons based on acl, not use here, maybe in a derived class
|
|
* @param string $join='' sql to do a join, added as is after the table-name, eg. ", table2 WHERE x=y" or
|
|
* "LEFT JOIN table2 ON (x=y)", Note: there's no quoting done on $join!
|
|
* @param boolean $need_full_no_count=false If true an unlimited query is run to determine the total number of rows, default false
|
|
* @param mixed $only_keys=false, see search
|
|
* @param string|array $extra_cols=array()
|
|
* @return int total number of rows
|
|
*/
|
|
function get_rows($query,&$rows,&$readonlys,$join='',$need_full_no_count=false,$only_keys=false,$extra_cols=array())
|
|
{
|
|
if ((int) $this->debug >= 4)
|
|
{
|
|
echo "<p>so_sql::get_rows(".print_r($query,true).",,)</p>\n";
|
|
}
|
|
$criteria = array();
|
|
$op = 'AND';
|
|
if ($query['search'])
|
|
{
|
|
$wildcard = '%';
|
|
$criteria = is_null($this->columns_to_search) ? $this->search2criteria($query['search'],$wildcard,$op) : $query['search'];
|
|
}
|
|
$rows = $this->search($criteria,$only_keys,$query['order']?$query['order'].' '.$query['sort']:'',$extra_cols,
|
|
$wildcard,false,$op,$query['num_rows']?array((int)$query['start'],$query['num_rows']):(int)$query['start'],
|
|
$query['col_filter'],$join,$need_full_no_count);
|
|
|
|
if (!$rows) $rows = array(); // otherwise false returned from search would be returned as array(false)
|
|
|
|
return $this->total;
|
|
}
|
|
|
|
/**
|
|
* Check if values for unique keys and the primary keys are unique are unique
|
|
*
|
|
* @param array $data=null data-set to check, defaults to $this->data
|
|
* @return int 0: all keys are unique, 1: first key not unique, 2: ...
|
|
*/
|
|
function not_unique($data=null)
|
|
{
|
|
if (!is_array($data))
|
|
{
|
|
$data = $this->data;
|
|
}
|
|
$n = 1;
|
|
$uni_keys = $this->db_uni_cols;
|
|
// add the primary key, only if it's NOT an auto id
|
|
if (!$this->autoinc_id)
|
|
{
|
|
$uni_keys[] = $this->db_key_cols;
|
|
}
|
|
foreach($uni_keys as $db_col => $col)
|
|
{
|
|
if (is_array($col))
|
|
{
|
|
$query = array();
|
|
foreach($col as $db_c => $c)
|
|
{
|
|
$query[$db_c] = $data[$c];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$query = array($db_col => $data[$col]);
|
|
}
|
|
foreach($this->db->select($this->table_name,$this->db_key_cols,$query,__LINE__,__FILE__,false,'',$this->app) as $other)
|
|
{
|
|
foreach($this->db_key_cols as $db_key_col => $key_col)
|
|
{
|
|
if ($data[$key_col] != $other[$key_col])
|
|
{
|
|
if ((int) $this->debug >= 4)
|
|
{
|
|
echo "<p>not_unique in ".array2string($col)." as for '$key_col': '${data[$key_col]}' != '${other[$key_col]}'</p>\n";
|
|
}
|
|
return $n; // different entry => $n not unique
|
|
}
|
|
}
|
|
}
|
|
++$n;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Query DB for a list / array with one colum as key and an other one(s) as value, eg. id => title pairs
|
|
*
|
|
* We do some caching as these kind of function is usualy called multiple times, eg. for option-lists.
|
|
*
|
|
* @param string $value_col array of column-names for the values of the array, can also be an expression aliased with AS,
|
|
* if more then one column given, an array with keys identical to the given ones is returned and not just the value of the column
|
|
* @param string $key_col='' column-name for the keys, default '' = same as (first) $value_col: returns a distinct list
|
|
* @param array $filter=array() to filter the entries
|
|
* @param string $order='' order, default '' = same as (first) $value_col
|
|
* @return array with key_col => value_col pairs or array if more then one value_col given (keys as in value_col)
|
|
*/
|
|
function query_list($value_col,$key_col='',$filter=array(),$order='')
|
|
{
|
|
static $cache = array();
|
|
|
|
$cache_key = serialize($value_col).'-'.$key_col.'-'.serialize($filter).'-'.$order;
|
|
|
|
if (isset($cache[$cache_key]))
|
|
{
|
|
return $cache[$cache_key];
|
|
}
|
|
if (!is_array($value_col)) $value_col = array($value_col);
|
|
|
|
$cols = array();
|
|
foreach($value_col as $key => $col)
|
|
{
|
|
$cols[$key] = preg_match('/AS ([a-z_0-9]+)$/i',$col,$matches) ? $matches[1] : $col;
|
|
}
|
|
if (!$order) $order = current($cols);
|
|
|
|
if (($search =& $this->search(array(),($key_col ? $key_col.',' : 'DISTINCT ').implode(',',$value_col),$order,'','',false,'AND',false,$filter)))
|
|
{
|
|
if (preg_match('/AS ([a-z_0-9]+)$/i',$key_col,$matches))
|
|
{
|
|
$key_col = $matches[1];
|
|
}
|
|
elseif (!$key_col)
|
|
{
|
|
$key_col = current($cols);
|
|
}
|
|
foreach($search as $row)
|
|
{
|
|
if (count($cols) > 1)
|
|
{
|
|
$data = array();
|
|
foreach($cols as $key => $col)
|
|
{
|
|
$data[$key] = $row[$col];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$data = $row[current($cols)];
|
|
}
|
|
$ret[$row[$key_col]] = $data;
|
|
}
|
|
}
|
|
return $cache[$cache_key] =& $ret;
|
|
}
|
|
|
|
/**
|
|
* Get comments for all columns or a specific one
|
|
*
|
|
* @param $column=null name of column or null for all (default)
|
|
* @return array|string array with internal-name => comment pairs, or string with comment, if $column given
|
|
*/
|
|
public function get_comments($column=null)
|
|
{
|
|
static $comments;
|
|
|
|
if (is_null($comments))
|
|
{
|
|
foreach($this->db_cols as $db_col => $col)
|
|
{
|
|
$comments[$col] = $this->table_def['fd'][$db_col]['comment'];
|
|
}
|
|
}
|
|
return is_null($column) ? $comments : $comments[$column];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Iterator applying a so_sql's db2data method on each element retrived
|
|
*
|
|
*/
|
|
class so_sql_db2data_iterator implements Iterator
|
|
{
|
|
/**
|
|
* Reference of so_sql class to use it's db2data method
|
|
*
|
|
* @var so_sql
|
|
*/
|
|
private $so_sql;
|
|
|
|
/**
|
|
* Instance of ADOdb record set to iterate
|
|
*
|
|
* @var Iterator
|
|
*/
|
|
private $rs;
|
|
|
|
/**
|
|
* Total count of entries
|
|
*
|
|
* @var int
|
|
*/
|
|
public $total;
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param so_sql $so_sql
|
|
* @param Traversable $rs
|
|
*/
|
|
public function __construct(so_sql $so_sql,Traversable $rs=null)
|
|
{
|
|
$this->so_sql = $so_sql;
|
|
|
|
$this->total = $so_sql->total;
|
|
|
|
if (is_a($rs,'IteratorAggregate'))
|
|
{
|
|
$this->rs = $rs->getIterator();
|
|
}
|
|
else
|
|
{
|
|
$this->rs = $rs;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the current element
|
|
*
|
|
* @return array
|
|
*/
|
|
public function current()
|
|
{
|
|
if (is_a($this->rs,'iterator'))
|
|
{
|
|
$data = $this->rs->current();
|
|
|
|
return $this->so_sql->data2db($data);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Return the key of the current element
|
|
*
|
|
* @return int
|
|
*/
|
|
public function key()
|
|
{
|
|
if (is_a($this->rs,'iterator'))
|
|
{
|
|
return $this->rs->key();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Move forward to next element (called after each foreach loop)
|
|
*/
|
|
public function next()
|
|
{
|
|
if (is_a($this->rs,'iterator'))
|
|
{
|
|
return $this->rs->next();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Rewind the Iterator to the first element (called at beginning of foreach loop)
|
|
*/
|
|
public function rewind()
|
|
{
|
|
if (is_a($this->rs,'iterator'))
|
|
{
|
|
return $this->rs->rewind();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if current position is valid
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function valid ()
|
|
{
|
|
if (is_a($this->rs,'iterator'))
|
|
{
|
|
return $this->rs->valid();
|
|
}
|
|
return false;
|
|
}
|
|
} |