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[DATABASE] Make unprefixed schema.php a bit more DBMS-neutral

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This commit is contained in:
Alexei Sorokin
2020-07-23 18:12:01 +03:00
parent 0def5f1dca
commit 31dcf99e61
3 changed files with 64 additions and 56 deletions
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45
lib/database/pgsqlschema.php
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@@ -316,57 +316,12 @@ class PgsqlSchema extends Schema
return implode(' ', $line);
}
/**
* Append phrase(s) to an array of partial ALTER TABLE chunks in order
* to alter the given column from its old state to a new one.
*
* @param array $phrase
* @param string $columnName
* @param array $old previous column definition as found in DB
* @param array $cd current column definition
*/
public function appendAlterModifyColumn(array &$phrase, $columnName, array $old, array $cd)
{
$prefix = 'ALTER COLUMN ' . $this->quoteIdentifier($columnName) . ' ';
$oldType = $this->typeAndSize($columnName, $old);
$newType = $this->typeAndSize($columnName, $cd);
if ($oldType != $newType) {
$phrase[] = $prefix . 'TYPE ' . $newType;
}
if (!empty($old['not null']) && empty($cd['not null'])) {
$phrase[] = $prefix . 'DROP NOT NULL';
} elseif (empty($old['not null']) && !empty($cd['not null'])) {
$phrase[] = $prefix . 'SET NOT NULL';
}
if (isset($old['default']) && !isset($cd['default'])) {
$phrase[] = $prefix . 'DROP DEFAULT';
} elseif (!isset($old['default']) && isset($cd['default'])) {
$phrase[] = $prefix . 'SET DEFAULT ' . $this->quoteDefaultValue($cd);
}
}
public function appendAlterDropPrimary(array &$phrase, string $tableName)
{
// name hack -- is this reliable?
$phrase[] = 'DROP CONSTRAINT ' . $this->quoteIdentifier($tableName . '_pkey');
}
/**
* Append an SQL statement to drop an index from a table.
* Note that in PostgreSQL, index names are DB-unique.
*
* @param array $statements
* @param string $table
* @param string $name
*/
public function appendDropIndex(array &$statements, $table, $name)
{
$statements[] = "DROP INDEX $name";
}
public function mapType($column)
{
$map = [