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FEATURE: added support for MySQL data type SET used in MultiEnum FEATURE: added datetime helper functions (from r98041)

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@102568 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer 2010-04-13 01:49:40 +00:00
parent 3a1868e8cf
commit 92a25a3e68
1 changed files with 97 additions and 0 deletions
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97
core/model/MySQLDatabase.php
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@ -599,6 +599,20 @@ class MySQLDatabase extends SS_Database {
return 'enum(\'' . implode('\',\'', $values['enums']) . '\') character set utf8 collate utf8_general_ci default \'' . $values['default'] . '\'';
}
/**
* Return a set type-formatted string
*
* @param array $values Contains a tokenised list of info about this data type
* @return string
*/
public function set($values){
//For reference, this is what typically gets passed to this function:
//$parts=Array('datatype'=>'enum', 'enums'=>$this->enum, 'character set'=>'utf8', 'collate'=> 'utf8_general_ci', 'default'=>$this->default);
//DB::requireField($this->tableName, $this->name, "enum('" . implode("','", $this->enum) . "') character set utf8 collate utf8_general_ci default '{$this->default}'");
$default = empty($values['default']) ? '' : " default '$values[default]'";
return 'set(\'' . implode('\',\'', $values['enums']) . '\') character set utf8 collate utf8_general_ci' . $default;
}
/**
* Return a float type-formatted string
* For MySQL, we simply return the word 'date', no other parameters are necessary
@ -922,6 +936,89 @@ class MySQLDatabase extends SS_Database {
public function endTransaction(){
//Transactions not set up for MySQL yet
}
/**
* Function to return an SQL datetime expression that can be used with SQLite3
* used for querying a datetime in a certain format
* @param string $date to be formated, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
* @param string $format to be used, supported specifiers:
* %Y = Year (four digits)
* %m = Month (01..12)
* %d = Day (01..31)
* %H = Hour (00..23)
* %i = Minutes (00..59)
* %s = Seconds (00..59)
* %U = unix timestamp, can only be used on it's own
* @return string SQL datetime expression to query for a formatted datetime
*/
function formattedDatetimeClause($date, $format) {
preg_match_all('/%(.)/', $format, $matches);
foreach($matches[1] as $match) if(array_search($match, array('Y','m','d','H','i','s','U')) === false) user_error('formattedDatetimeClause(): unsupported format character %' . $match, E_USER_WARNING);
if(preg_match('/^now$/i', $date)) {
$date = "NOW()";
} else if(preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/i', $date)) {
$date = "'$date'";
}
if($format == '%U') return "UNIX_TIMESTAMP($date)";
return "DATE_FORMAT($date, '$format')";
}
/**
* Function to return an SQL datetime expression that can be used with SQLite3
* used for querying a datetime addition
* @param string $date, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
* @param string $interval to be added, use the format [sign][integer] [qualifier], e.g. -1 Day, +15 minutes, +1 YEAR
* supported qualifiers:
* - years
* - months
* - days
* - hours
* - minutes
* - seconds
* This includes the singular forms as well
* @return string SQL datetime expression to query for a datetime (YYYY-MM-DD hh:mm:ss) which is the result of the addition
*/
function datetimeIntervalClause($date, $interval) {
$interval = preg_replace('/(year|month|day|hour|minute|second)s/i', '$1', $interval);
if(preg_match('/^now$/i', $date)) {
$date = "NOW()";
} else if(preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/i', $date)) {
$date = "'$date'";
}
return "$date + INTERVAL $interval";
}
/**
* Function to return an SQL datetime expression that can be used with SQLite3
* used for querying a datetime substraction
* @param string $date1, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
* @param string $date2 to be substracted of $date1, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
* @return string SQL datetime expression to query for the interval between $date1 and $date2 in seconds which is the result of the substraction
*/
function datetimeDifferenceClause($date1, $date2) {
if(preg_match('/^now$/i', $date1)) {
$date1 = "NOW()";
} else if(preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/i', $date1)) {
$date1 = "'$date1'";
}
if(preg_match('/^now$/i', $date2)) {
$date2 = "NOW()";
} else if(preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/i', $date2)) {
$date2 = "'$date2'";
}
return "UNIX_TIMESTAMP($date1) - UNIX_TIMESTAMP($date2)";
}
}
/**