<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of Plume Framework, a simple PHP Application Framework.
# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
#
# Plume Framework is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Plume Framework is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ***** END LICENSE BLOCK ***** */
/**
* Generator of the schemas corresponding to a given model.
*
* This class is for SQLite, you can create a class on the same
* model for another database engine.
*/
class Pluf_DB_Schema_SQLite
{
/**
* Mapping of the fields.
*/
public $mappings = array(
'varchar' => 'varchar(%s)',
'sequence' => 'integer primary key autoincrement',
'boolean' => 'bool',
'date' => 'date',
'datetime' => 'datetime',
'file' => 'varchar(150)',
'manytomany' => null,
'foreignkey' => 'integer',
'text' => 'text',
'html' => 'text',
'time' => 'time',
'integer' => 'integer',
'email' => 'varchar(150)',
'password' => 'varchar(150)',
'float' => 'real',
'blob' => 'blob',
);
public $defaults = array(
'varchar' => "''",
'sequence' => null,
'boolean' => 1,
'date' => 0,
'datetime' => 0,
'file' => "''",
'manytomany' => null,
'foreignkey' => 0,
'text' => "''",
'html' => "''",
'time' => 0,
'integer' => 0,
'email' => "''",
'password' => "''",
'float' => 0.0,
'blob' => "''",
);
private $con = null;
function __construct($con)
{
$this->con = $con;
}
/**
* Get the SQL to generate the tables of the given model.
*
* @param Object Model
* @return array Array of SQL strings ready to execute.
*/
function getSqlCreate($model)
{
$tables = array();
$cols = $model->_a['cols'];
$manytomany = array();
$query = 'CREATE TABLE '.$this->con->pfx.$model->_a['table'].' (';
$sql_col = array();
foreach ($cols as $col => $val) {
$field = new $val['type']();
if ($field->type != 'manytomany') {
$sql = $this->con->qn($col).' ';
$_tmp = $this->mappings[$field->type];
if ($field->type == 'varchar') {
if (isset($val['size'])) {
$_tmp = sprintf($this->mappings['varchar'], $val['size']);
} else {
$_tmp = sprintf($this->mappings['varchar'], '150');
}
}
if ($field->type == 'float') {
if (!isset($val['max_digits'])) {
$val['max_digits'] = 32;
}
if (!isset($val['decimal_places'])) {
$val['decimal_places'] = 8;
}
$_tmp = sprintf($this->mappings['float'], $val['max_digits'], $val['decimal_places']);
}
$sql .= $_tmp;
if (empty($val['is_null'])) {
$sql .= ' not null';
}
if (isset($val['default'])) {
$sql .= ' default '.$model->_toDb($val['default'], $col);
} elseif ($field->type != 'sequence') {
$sql .= ' default '.$this->defaults[$field->type];
}
$sql_col[] = $sql;
} else {
$manytomany[] = $col;
}
}
$query = $query."\n".implode(",\n", $sql_col)."\n".');';
$tables[$this->con->pfx.$model->_a['table']] = $query;
//Now for the many to many
foreach ($manytomany as $many) {
$omodel = new $cols[$many]['model']();
$hay = array(strtolower($model->_a['model']), strtolower($omodel->_a['model']));
sort($hay);
$table = $hay[0].'_'.$hay[1].'_assoc';
$sql = 'CREATE TABLE '.$this->con->pfx.$table.' (';
$sql .= "\n".strtolower($model->_a['model']).'_id '.$this->mappings['foreignkey'].' default 0,';
$sql .= "\n".strtolower($omodel->_a['model']).'_id '.$this->mappings['foreignkey'].' default 0,';
$sql .= "\n".'primary key ('.strtolower($model->_a['model']).'_id, '.strtolower($omodel->_a['model']).'_id)';
$sql .= "\n".');';
$tables[$this->con->pfx.$table] = $sql;
}
return $tables;
}
/**
* Get the SQL to generate the indexes of the given model.
*
* @param Object Model
* @return array Array of SQL strings ready to execute.
*/
function getSqlIndexes($model)
{
$index = array();
foreach ($model->_a['idx'] as $idx => $val) {
if (!isset($val['col'])) {
$val['col'] = $idx;
}
$unique = (isset($val['type']) && ($val['type'] == 'unique')) ? 'UNIQUE ' : '';
$index[$this->con->pfx.$model->_a['table'].'_'.$idx] =
sprintf('CREATE %sINDEX %s ON %s (%s);',
$unique,
$this->con->pfx.$model->_a['table'].'_'.$idx,
$this->con->pfx.$model->_a['table'],
Pluf_DB_Schema::quoteColumn($val['col'], $this->con)
);
}
foreach ($model->_a['cols'] as $col => $val) {
$field = new $val['type']();
if ($field->type == 'foreignkey') {
$index[$this->con->pfx.$model->_a['table'].'_'.$col.'_foreignkey'] =
sprintf('CREATE INDEX %s ON %s (%s);',
$this->con->pfx.$model->_a['table'].'_'.$col.'_foreignkey_idx',
$this->con->pfx.$model->_a['table'],
Pluf_DB_Schema::quoteColumn($col, $this->con));
}
if (isset($val['unique']) and $val['unique'] == true) {
$index[$this->con->pfx.$model->_a['table'].'_'.$col.'_unique'] =
sprintf('CREATE UNIQUE INDEX %s ON %s (%s);',
$this->con->pfx.$model->_a['table'].'_'.$col.'_unique_idx',
$this->con->pfx.$model->_a['table'],
Pluf_DB_Schema::quoteColumn($col, $this->con)
);
}
}
return $index;
}
/**
* Get the SQL to drop the tables corresponding to the model.
*
* @param Object Model
* @return string SQL string ready to execute.
*/
function getSqlDelete($model)
{
$cols = $model->_a['cols'];
$manytomany = array();
$sql = array();
$sql[] = 'DROP TABLE IF EXISTS '.$this->con->pfx.$model->_a['table'];
foreach ($cols as $col => $val) {
$field = new $val['type']();
if ($field->type == 'manytomany') {
$manytomany[] = $col;
}
}
//Now for the many to many
foreach ($manytomany as $many) {
$omodel = new $cols[$many]['model']();
$hay = array(strtolower($model->_a['model']), strtolower($omodel->_a['model']));
sort($hay);
$table = $hay[0].'_'.$hay[1].'_assoc';
$sql[] = 'DROP TABLE IF EXISTS '.$this->con->pfx.$table;
}
return $sql;
}
}
accountmanagementengine