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new capability to CAST AS varchar

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This commit is contained in:
Ralf Becker 2011-03-18 14:18:24 +00:00
parent 7f49fa6812
commit ebbbf233cf
1 changed files with 10 additions and 0 deletions
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10
phpgwapi/inc/class.egw_db.inc.php
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@ -222,6 +222,14 @@ class egw_db
* DB requires varchar columns to be truncated to the max. size (eg. Postgres)
*/
const CAPABILITY_REQUIRE_TRUNCATE_VARCHAR = 'require_truncate_varchar';
/**
* How to cast a column to varchar: CAST(%s AS varchar)
*
* MySQL requires to use CAST(%s AS char)!
*
* Use as: $sql = sprintf($GLOBALS['egw']->db->capabilities[egw_db::CAPABILITY_CAST_AS_VACHAR],$expression);
*/
const CAPABILITY_CAST_AS_VACHAR = 'cast_as_varchar';
/**
* default capabilities will be changed by method set_capabilities($ado_driver,$db_version)
*
@ -240,6 +248,7 @@ class egw_db
self::CAPABILITY_CLIENT_ENCODING => false,
self::CAPABILITY_CASE_INSENSITIV_LIKE => 'LIKE',
self::CAPABILITY_REQUIRE_TRUNCATE_VARCHAR => false,
self::CAPABILITY_CAST_AS_VACHAR => 'CAST(%s AS varchar)',
);
var $prepared_sql = array(); // sql is the index
@ -498,6 +507,7 @@ class egw_db
$this->capabilities[self::CAPABILITY_UNION] = (float) $db_version >= 4.0;
$this->capabilities[self::CAPABILITY_NAME_CASE] = 'preserv';
$this->capabilities[self::CAPABILITY_CLIENT_ENCODING] = (float) $db_version >= 4.1;
$this->capabilities[self::CAPABILITY_CAST_AS_VACHAR] = 'CAST(%s AS char)';
break;
case 'postgres':