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"extra where condition, eg. to check etag on writing"

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This commit is contained in:
Ralf Becker 2008-04-26 07:49:01 +00:00
parent c906d34880
commit 163b795d45
1 changed files with 51 additions and 50 deletions
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101
etemplate/inc/class.so_sql.inc.php
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@ -25,63 +25,63 @@
*/
class so_sql
{
/**
* need to be set in the derived class to the db-table-name
*
/**
* need to be set in the derived class to the db-table-name
*
* @var string
*/
var $table_name;
/**
* db-col-name of autoincrement id or ''
*
*
* @var string
*/
var $autoinc_id = '';
/**
* all cols in data which are not (direct)in the db, for data_merge
*
*
* @var array
*/
var $non_db_cols = array();
/**
* 4 turns on the so_sql debug-messages, default 0
*
*
* @var int
*/
var $debug = 0;
/**
* string to be written to db if a col-value is '', eg. "''" or 'NULL' (default)
*
*
* @var string
*/
var $empty_on_write = 'NULL';
/**
* total number of entries of last search with start != false
*
*
* @var int/boolean
*/
var $total = false;
/**
* protected instance or reference (depeding on $no_clone param of constructor) of the db-object
*
*
* @var egw_db
*/
protected $db;
/**
* unique keys/index, set by derived class or via so_sql($app,$table)
*
*
* @var array
*/
var $db_uni_cols = array();
/**
* db-col-name / internal-name pairs, set by derived calls or via so_sql($app,$table)
*
*
* @var array
*/
var $db_key_cols = array();
/**
* db-col-name / internal-name pairs, set by derived calls or via so_sql($app,$table)
*
* db-col-name / internal-name pairs, set by derived calls or via so_sql($app,$table)
*
* @var array
*/
var $db_data_cols = array();
@ -91,7 +91,7 @@ class so_sql
var $db_cols = array();
/**
* eGW table definition
*
*
* @var array
*/
var $table_def = array();
@ -103,26 +103,26 @@ class so_sql
var $app;
/**
* holds the content of all columns
*
*
* @var array
*/
var $data = array();
/**
* Timestaps that need to be adjusted to user-time on reading or saving
*
*
* @var array
*/
var $timestamps = array();
/**
* Offset in secconds between user and server-time, it need to be add to a server-time to get the user-time
* Offset in secconds between user and server-time, it need to be add to a server-time to get the user-time
* or substracted from a user-time to get the server-time
*
*
* @var int
*/
var $tz_offset_s;
/**
* Current time as timestamp in user-time
*
*
* @var int
*/
var $now;
@ -136,9 +136,9 @@ class so_sql
* @param string $table should be set if table-defs to be read from <app>/setup/tables_current.inc.php
* @param object/db $db database object, if not the one in $GLOBALS['egw']->db should be used, eg. for an other database
* @param string $colum_prefix='' column prefix to automatic remove from the column-name, if the column name starts with it
* @param boolean $no_clone=false can we avoid to clone the db-object, default no
* @param boolean $no_clone=false can we avoid to clone the db-object, default no
* new code using appnames and foreach(select(...,$app) can set it to avoid an extra instance of the db object
*
*
* @return so_sql
*/
function so_sql($app='',$table='',$db=null,$column_prefix='',$no_clone=false)
@ -156,7 +156,7 @@ class so_sql
if ($app)
{
$this->app = $app;
if (!$no_clone) $this->db->set_app($app);
if ($table) $this->setup_table($app,$table,$column_prefix);
@ -317,7 +317,7 @@ class so_sql
$this->db2data();
$this->data_merge($keys);
return $this->data;
}
@ -326,7 +326,7 @@ class so_sql
*
* @param array $keys array with keys in form internalName => value, may be a scalar value if only one key
* @param string/array $extra_cols string or array of strings to be added to the SELECT, eg. "count(*) as num"
* @param string $join sql to do a join, added as is after the table-name, eg. ", table2 WHERE x=y" or
* @param string $join sql to do a join, added as is after the table-name, eg. ", table2 WHERE x=y" or
* @return array/boolean data if row could be retrived else False
*/
function read($keys,$extra_cols='',$join='')
@ -335,8 +335,8 @@ class so_sql
{
$pk = array_values($this->db_key_cols);
if ($pk) $keys = array($pk[0] => $keys);
}
}
$this->init($keys);
$this->data2db();
@ -400,7 +400,7 @@ class so_sql
$this->data[$col] = $row[$db_col];
}
$this->db2data();
if ((int) $this->debug >= 4)
{
echo "data =\n"; _debug_array($this->data);
@ -422,9 +422,10 @@ class so_sql
* saves the content of data to the db
*
* @param array $keys if given $keys are copied to data before saveing => allows a save as
* @param string|array $extra_where=null extra where clause, eg. to check the etag, returns 'nothing_affected' if not affected rows
* @return int 0 on success and errno != 0 else
*/
function save($keys=null)
function save($keys=null,$extra_where=null)
{
if (is_array($keys) && count($keys)) $this->data_merge($keys);
@ -478,7 +479,7 @@ class so_sql
$data[] = $keys[$n];
}
}
$keys = '';
$keys = $extra_where;
foreach($this->db_key_cols as $db_col => $col)
{
$keys[$db_col] = $this->data[$col];
@ -499,12 +500,12 @@ class so_sql
}
$this->db2data();
return $this->db->Errno;
return $this->db->Errno ? $this->db->Errno : ($extra_where && !$this->db->affected_rows() ? true : 0);
}
/**
* 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 0 on success, errno != 0 otherwise
@ -527,7 +528,7 @@ class so_sql
$this->init($fields);
$ret = $this->save();
if ($merge)
{
$this->init($backup_data);
@ -535,7 +536,7 @@ class so_sql
}
return $ret;
}
/**
* deletes row representing keys in internal data or the supplied $keys if != null
*
@ -579,7 +580,7 @@ class so_sql
* 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 a SQL query (content for WHERE), fully quoted (!)
* @param boolean/string/array $only_keys=true True returns only keys, False returns all cols. or
* @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 $extra_cols='' string or array of strings to be added to the SELECT, eg. "count(*) as num"
@ -630,7 +631,7 @@ class so_sql
elseif (strpos($db_col,'.')!==false) // we have a table-name specified
{
list($table,$only_col) = explode('.',$db_col);
$table_def = $this->db->get_table_definitions(true,$table);
if (is_array($val) && count($val) > 1)
@ -659,13 +660,13 @@ class so_sql
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)))
if (!is_int($col) && ($c = array_search($col,$this->db_cols)))
{
$col = $c;
}
@ -683,13 +684,13 @@ class so_sql
}
}
}
if ($query)
if ($query)
{
if ($op != 'AND')
{
$db_filter[] = '('.$this->db->column_data_implode(' '.$op.' ',$query).')';
}
else
else
{
$db_filter = array_merge($db_filter,$query);
}
@ -726,7 +727,7 @@ class so_sql
$num_rows = 0; // as spec. in max_matches in the user-prefs
if (is_array($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;
@ -812,11 +813,11 @@ class so_sql
/**
* extract the requested columns from $only_keys and $extra_cols param of a search
*
* @internal
* @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($extra_cols);
@ -872,7 +873,7 @@ class so_sql
* For other keys like 'filter', 'cat_id' you have to reimplement this method in a derived class.
* @param array &$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
* @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
@ -895,12 +896,12 @@ class so_sql
$rows = $this->search($criteria,$only_keys,$query['order']?$query['order'].' '.$query['sort']:'',
'','%',false,'OR',$query['num_rows']?array((int)$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 $this->total;
}
/**
* Check if values for unique keys are unique
*
@ -934,7 +935,7 @@ class so_sql
}
return 0;
}
/**
* Query DB for a list / array with one colum as key and an other one(s) as value, eg. id => title pairs
*
@ -950,20 +951,20 @@ class so_sql
function query_list($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)))