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Move postgres schema features to SchemaDialect

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markstory committed Apr 26, 2013
1 parent 60a829f commit d974c4065d324b5419a80fefae1bf349ed0a1a8f
@@ -147,144 +147,6 @@ protected function _transformFunctionExpression(FunctionExpression $expression)
}
}
/**
* Get the SQL to list the tables
*
* @param array $config The connection configuration to use for
* getting tables from.
* @return array An array of (sql, params) to execute.
*/
public function listTablesSql($config) {
$sql = "SELECT table_name as name FROM INFORMATION_SCHEMA.tables WHERE table_schema = ? ORDER BY name";
$schema = empty($config['schema']) ? 'public' : $config['schema'];
return [$sql, [$schema]];
}
/**
* Get the SQL to describe a table in Postgres.
*
* @param string $table The table name to describe
* @param array $config The connection configuration to use
* @return array An array of (sql, params) to execute.
*/
public function describeTableSql($table, $config) {
$sql =
"SELECT DISTINCT table_schema AS schema, column_name AS name, data_type AS type,
is_nullable AS null, column_default AS default, ordinal_position AS position,
character_maximum_length AS char_length, character_octet_length AS oct_length,
d.description as comment, i.indisprimary = 't' as pk
FROM information_schema.columns c
INNER JOIN pg_catalog.pg_namespace ns ON (ns.nspname = table_schema)
INNER JOIN pg_catalog.pg_class cl ON (cl.relnamespace = ns.oid AND cl.relname = table_name)
LEFT JOIN pg_catalog.pg_index i ON (i.indrelid = cl.oid AND i.indkey[0] = c.ordinal_position)
LEFT JOIN pg_catalog.pg_description d on (cl.oid = d.objoid AND d.objsubid = c.ordinal_position)
WHERE table_name = ? AND table_schema = ? ORDER BY position";
$schema = empty($config['schema']) ? 'public' : $config['schema'];
return [$sql, [$table, $schema]];
}
/**
* Convert a column definition to the abstract types.
*
* The returned type will be a type that
* Cake\Database\Type can handle.
*
* @param string $column The column type + length
* @return array List of (type, length)
*/
public function convertColumn($column) {
$col = strtolower($column);
if (in_array($col, array('date', 'time', 'boolean'))) {
return [$col, null];
}
if (strpos($col, 'timestamp') !== false) {
return ['datetime', null];
}
if ($col === 'serial' || $col === 'integer') {
return ['integer', 10];
}
if ($col === 'bigserial' || $col === 'bigint') {
return ['biginteger', 20];
}
if ($col === 'smallint') {
return ['integer', 5];
}
if ($col === 'inet') {
return ['string', 39];
}
if ($col === 'uuid') {
return ['string', 36];
}
if (strpos($col, 'char') !== false) {
return ['string', null];
}
if (strpos($col, 'text') !== false) {
return ['text', null];
}
if ($col === 'bytea') {
return ['binary', null];
}
if ($col === 'real' || strpos($col, 'double') !== false) {
return ['float', null];
}
if (
strpos($col, 'numeric') !== false ||
strpos($col, 'money') !== false ||
strpos($col, 'decimal') !== false
) {
return ['decimal', null];
}
return ['text', null];
}
/**
* Get additional column meta data used in schema reflections.
*
* @return array
*/
public function extraSchemaColumns() {
return [
'comment' => [
'column' => 'comment',
]
];
}
/**
* Convert field description results into abstract schema fields.
*
* @return array An array of with the key/values of schema data.
*/
public function convertFieldDescription($row, $fieldParams = []) {
list($type, $length) = $this->convertColumn($row['type']);
if ($type === 'boolean') {
if ($row['default'] === 'true') {
$row['default'] = 1;
}
if ($row['default'] === 'false') {
$row['default'] = 0;
}
}
$schema = [];
$schema[$row['name']] = [
'type' => $type,
'null' => $row['null'] === 'YES' ? true : false,
'default' => $row['default'],
'length' => $row['char_length'] ?: $length,
];
if (!empty($row['pk'])) {
$schema[$row['name']]['key'] = 'primary';
}
foreach ($fieldParams as $key => $metadata) {
if (!empty($row[$metadata['column']])) {
$schema[$row['name']][$key] = $row[$metadata['column']];
}
}
return $schema;
}
/**
* Get the schema dialect.
*
@@ -0,0 +1,170 @@
<?php
/**
* PHP Version 5.4
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since CakePHP(tm) v 3.0.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
namespace Cake\Database\Schema\Dialect;
class Postgres {
/**
* The driver instance being used.
*
* @var Cake\Database\Driver\Postgres
*/
protected $driver;
public function __construct($driver) {
$this->_driver = $driver;
}
/**
* Get the SQL to list the tables
*
* @param array $config The connection configuration to use for
* getting tables from.
* @return array An array of (sql, params) to execute.
*/
public function listTablesSql($config) {
$sql = "SELECT table_name as name FROM INFORMATION_SCHEMA.tables WHERE table_schema = ? ORDER BY name";
$schema = empty($config['schema']) ? 'public' : $config['schema'];
return [$sql, [$schema]];
}
/**
* Get the SQL to describe a table in Postgres.
*
* @param string $table The table name to describe
* @param array $config The connection configuration to use
* @return array An array of (sql, params) to execute.
*/
public function describeTableSql($table, $config) {
$sql =
"SELECT DISTINCT table_schema AS schema, column_name AS name, data_type AS type,
is_nullable AS null, column_default AS default, ordinal_position AS position,
character_maximum_length AS char_length, character_octet_length AS oct_length,
d.description as comment, i.indisprimary = 't' as pk
FROM information_schema.columns c
INNER JOIN pg_catalog.pg_namespace ns ON (ns.nspname = table_schema)
INNER JOIN pg_catalog.pg_class cl ON (cl.relnamespace = ns.oid AND cl.relname = table_name)
LEFT JOIN pg_catalog.pg_index i ON (i.indrelid = cl.oid AND i.indkey[0] = c.ordinal_position)
LEFT JOIN pg_catalog.pg_description d on (cl.oid = d.objoid AND d.objsubid = c.ordinal_position)
WHERE table_name = ? AND table_schema = ? ORDER BY position";
$schema = empty($config['schema']) ? 'public' : $config['schema'];
return [$sql, [$table, $schema]];
}
/**
* Convert a column definition to the abstract types.
*
* The returned type will be a type that
* Cake\Database\Type can handle.
*
* @param string $column The column type + length
* @return array List of (type, length)
*/
public function convertColumn($column) {
$col = strtolower($column);
if (in_array($col, array('date', 'time', 'boolean'))) {
return [$col, null];
}
if (strpos($col, 'timestamp') !== false) {
return ['datetime', null];
}
if ($col === 'serial' || $col === 'integer') {
return ['integer', 10];
}
if ($col === 'bigserial' || $col === 'bigint') {
return ['biginteger', 20];
}
if ($col === 'smallint') {
return ['integer', 5];
}
if ($col === 'inet') {
return ['string', 39];
}
if ($col === 'uuid') {
return ['string', 36];
}
if (strpos($col, 'char') !== false) {
return ['string', null];
}
if (strpos($col, 'text') !== false) {
return ['text', null];
}
if ($col === 'bytea') {
return ['binary', null];
}
if ($col === 'real' || strpos($col, 'double') !== false) {
return ['float', null];
}
if (
strpos($col, 'numeric') !== false ||
strpos($col, 'money') !== false ||
strpos($col, 'decimal') !== false
) {
return ['decimal', null];
}
return ['text', null];
}
/**
* Get additional column meta data used in schema reflections.
*
* @return array
*/
public function extraSchemaColumns() {
return [
'comment' => [
'column' => 'comment',
]
];
}
/**
* Convert field description results into abstract schema fields.
*
* @return array An array of with the key/values of schema data.
*/
public function convertFieldDescription($row, $fieldParams = []) {
list($type, $length) = $this->convertColumn($row['type']);
if ($type === 'boolean') {
if ($row['default'] === 'true') {
$row['default'] = 1;
}
if ($row['default'] === 'false') {
$row['default'] = 0;
}
}
$schema = [];
$schema[$row['name']] = [
'type' => $type,
'null' => $row['null'] === 'YES' ? true : false,
'default' => $row['default'],
'length' => $row['char_length'] ?: $length,
];
if (!empty($row['pk'])) {
$schema[$row['name']]['key'] = 'primary';
}
foreach ($fieldParams as $key => $metadata) {
if (!empty($row[$metadata['column']])) {
$schema[$row['name']][$key] = $row[$metadata['column']];
}
}
return $schema;
}
}
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