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"new static method to get an attribute of a column, eg. the comment"

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Ralf Becker 2009-05-30 06:58:48 +00:00
parent 31ad0b0480
commit 53264e2c2b
1 changed files with 26 additions and 0 deletions
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26
phpgwapi/inc/class.egw_db.inc.php
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@ -1581,6 +1581,32 @@ class egw_db
return $table ? $this->app_data['table_defs'][$table] : $this->app_data['table_defs'];
}
/**
* Get specified attribute (default comment) of a colum or whole definition (if $attribute === null)
*
* Can be used static, in which case the global db object is used ($GLOBALS['egw']->db) and $app should be specified
*
* @param string $column name of column
* @param string $table name of table
* @param string $app=null app name or NULL to use $this->app, set via egw_db::set_app()
* @param string $attribute='comment' what field to return, NULL for array with all fields, default 'comment' to return the comment
* @return string|array NULL if table or column or attribute not found
*/
/* static */ function get_column_attribute($column,$table,$app=null,$attribute='comment')
{
static $cached_columns,$cached_table; // some caching
if ($cached_table !== $table || is_null($cached_columns))
{
$db = isset($this) ? $this : $GLOBALS['egw']->db;
$table_def = $db->get_table_definitions($app,$table);
$cached_columns = is_array($table_def) ? $table_def['fd'] : false;
}
if ($cached_columns === false) return null;
return is_null($attribute) ? $cached_columns[$column] : $cached_columns[$column][$attribute];
}
/**
* Insert a row of data into a table or updates it if $where is given, all data is quoted according to it's type
*