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Page types now appear in the CMS dropdowns

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This commit is contained in:
Geoff Munn 2009-04-05 22:23:58 +00:00
parent 6a9253430f
commit e1d9e6ba44
1 changed files with 47 additions and 8 deletions
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55
code/MSSQLDatabase.php
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@ -317,6 +317,7 @@ class MSSQLDatabase extends Database {
if($alterList) { if($alterList) {
$alterations = implode(",\n", $alterList); $alterations = implode(",\n", $alterList);
//echo 'the alterations are ' . $alterList . '<br>';
//$this->query("ALTER TABLE \"$tableName\" " . $alterations); //$this->query("ALTER TABLE \"$tableName\" " . $alterations);
$this->query($alterations); $this->query($alterations);
} }
@ -326,6 +327,33 @@ class MSSQLDatabase extends Database {
$this->query($alteration); $this->query($alteration);
} }
/*
* This is a private MSSQL-only function which returns specific details about a column's constraints (if any)
*/
private function ColumnConstraints($tableName, $columnName){
$constraint=$this->query("SELECT CC.CONSTRAINT_NAME, CHECK_CLAUSE, COLUMN_NAME FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME=CC.CONSTRAINT_NAME WHERE TABLE_NAME='$tableName' AND COLUMN_NAME='" . $columnName . "';")->first();
return $constraint;
}
/*
* Get the actual enum fields from the constraint value:
*/
private function EnumValuesFromConstraint($constraint){
$segments=explode(' OR [', $constraint);
$constraints=Array();
foreach($segments as $this_segment){
$bits=explode(' = ', $this_segment);
for($i=1; $i<sizeof($bits); $i+=2)
array_unshift($constraints, substr(rtrim($bits[$i], ')'), 1, -1));
}
return $constraints;
}
/* /*
* Creates an ALTER expression for a column in MS SQL * Creates an ALTER expression for a column in MS SQL
* *
@ -369,7 +397,8 @@ class MSSQLDatabase extends Database {
// SET check constraint (The constraint HAS to be dropped) // SET check constraint (The constraint HAS to be dropped)
if(!empty($matches[4])) { if(!empty($matches[4])) {
$constraint=$this->query("SELECT CC.CONSTRAINT_NAME FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME=CC.CONSTRAINT_NAME WHERE TABLE_NAME='$tableName' AND COLUMN_NAME='" . $colName . "';")->first(); //$constraint=$this->query("SELECT CC.CONSTRAINT_NAME FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME=CC.CONSTRAINT_NAME WHERE TABLE_NAME='$tableName' AND COLUMN_NAME='" . $colName . "';")->first();
$constraint=$this->ColumnConstraints($tableName, $colName);
if($constraint) if($constraint)
$alterCol .= ";\n$prefix DROP CONSTRAINT {$constraint['CONSTRAINT_NAME']}"; $alterCol .= ";\n$prefix DROP CONSTRAINT {$constraint['CONSTRAINT_NAME']}";
@ -452,7 +481,8 @@ class MSSQLDatabase extends Database {
case 'varchar': case 'varchar':
//Check to see if there's a constraint attached to this column: //Check to see if there's a constraint attached to this column:
//$constraint=$this->query("SELECT conname,pg_catalog.pg_get_constraintdef(r.oid, true) FROM pg_catalog.pg_constraint r WHERE r.contype = 'c' AND conname='" . $table . '_' . $field['column_name'] . "_check' ORDER BY 1;")->first(); //$constraint=$this->query("SELECT conname,pg_catalog.pg_get_constraintdef(r.oid, true) FROM pg_catalog.pg_constraint r WHERE r.contype = 'c' AND conname='" . $table . '_' . $field['column_name'] . "_check' ORDER BY 1;")->first();
$constraint=$this->query("SELECT CHECK_CLAUSE, COLUMN_NAME FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME=CC.CONSTRAINT_NAME WHERE TABLE_NAME='$table' AND COLUMN_NAME='" . $field['column_name'] . "';")->first(); //$constraint=$this->query("SELECT CHECK_CLAUSE, COLUMN_NAME FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME=CC.CONSTRAINT_NAME WHERE TABLE_NAME='$table' AND COLUMN_NAME='" . $field['column_name'] . "';")->first();
$constraint=$this->ColumnConstraints($table, $field['column_name']);
if($constraint){ if($constraint){
//Now we need to break this constraint text into bits so we can see what we have: //Now we need to break this constraint text into bits so we can see what we have:
//Examples: //Examples:
@ -460,7 +490,7 @@ class MSSQLDatabase extends Database {
//([ClassName] = 'Member') //([ClassName] = 'Member')
//TODO: replace all this with a regular expression! //TODO: replace all this with a regular expression!
$value=$constraint['CHECK_CLAUSE']; /*$value=$constraint['CHECK_CLAUSE'];
$segments=explode(' OR [', $value); $segments=explode(' OR [', $value);
$constraints=Array(); $constraints=Array();
@ -470,7 +500,8 @@ class MSSQLDatabase extends Database {
for($i=1; $i<sizeof($bits); $i+=2) for($i=1; $i<sizeof($bits); $i+=2)
array_unshift($constraints, substr(rtrim($bits[$i], ')'), 1, -1)); array_unshift($constraints, substr(rtrim($bits[$i], ')'), 1, -1));
} }*/
$constraints=$this->EnumValuesFromConstraint($constraint['CHECK_CLAUSE']);
$default=substr($field['column_default'], 2, -2); $default=substr($field['column_default'], 2, -2);
$field['data_type']=$this->enum(Array('default'=>$default, 'name'=>$field['column_name'], 'enums'=>$constraints)); $field['data_type']=$this->enum(Array('default'=>$default, 'name'=>$field['column_name'], 'enums'=>$constraints));
} }
@ -864,11 +895,19 @@ class MSSQLDatabase extends Database {
} }
/** /**
* Return enum values for the given field * Returns the values of the given enum field
* @todo Make a proper implementation * NOTE: Experimental; introduced for db-abstraction and may changed before 2.4 is released.
*/ */
function enumValuesForField($tableName, $fieldName) { public function enumValuesForField($tableName, $fieldName) {
return array('SiteTree','Page'); // Get the enum of all page types from the SiteTree table
$constraints=$this->ColumnConstraints($tableName, $fieldName);
$classes=Array();
if($constraints){
$constraints=$this->EnumValuesFromConstraint($constraints['CHECK_CLAUSE']);
$classes=$constraints;
}
return $classes;
} }
/** /**