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Viewing changes to codeigniter/system/database/drivers/mysql/mysql_forge.php

  • Committer: galaxyAbstractor
  • Date: 2013-04-10 15:49:32 UTC
  • mto: (19.1.5 lenasys)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: galaxyabstractor@gmail.com-20130410154932-4vizlzk0ar5gykvi
* Added an simple admin panel to the codeviewer-cmssy stuff
* Redesigned a bit like the mockups - still stuff to come
* Implemented the codeviewer + admin panel again using the Framework CodeIgniter instead 

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codeigniter/system/database/drivers/mysql/mysql_forge.php
 
1
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
2
/**
 
3
 * CodeIgniter
 
4
 *
 
5
 * An open source application development framework for PHP 5.1.6 or newer
 
6
 *
 
7
 * @package             CodeIgniter
 
8
 * @author              ExpressionEngine Dev Team
 
9
 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 
10
 * @license             http://codeigniter.com/user_guide/license.html
 
11
 * @link                http://codeigniter.com
 
12
 * @since               Version 1.0
 
13
 * @filesource
 
14
 */
 
15
 
 
16
// ------------------------------------------------------------------------
 
17
 
 
18
/**
 
19
 * MySQL Forge Class
 
20
 *
 
21
 * @category    Database
 
22
 * @author              ExpressionEngine Dev Team
 
23
 * @link                http://codeigniter.com/user_guide/database/
 
24
 */
 
25
class CI_DB_mysql_forge extends CI_DB_forge {
 
26
 
 
27
        /**
 
28
         * Create database
 
29
         *
 
30
         * @access      private
 
31
         * @param       string  the database name
 
32
         * @return      bool
 
33
         */
 
34
        function _create_database($name)
 
35
        {
 
36
                return "CREATE DATABASE ".$name;
 
37
        }
 
38
 
 
39
        // --------------------------------------------------------------------
 
40
 
 
41
        /**
 
42
         * Drop database
 
43
         *
 
44
         * @access      private
 
45
         * @param       string  the database name
 
46
         * @return      bool
 
47
         */
 
48
        function _drop_database($name)
 
49
        {
 
50
                return "DROP DATABASE ".$name;
 
51
        }
 
52
 
 
53
        // --------------------------------------------------------------------
 
54
 
 
55
        /**
 
56
         * Process Fields
 
57
         *
 
58
         * @access      private
 
59
         * @param       mixed   the fields
 
60
         * @return      string
 
61
         */
 
62
        function _process_fields($fields)
 
63
        {
 
64
                $current_field_count = 0;
 
65
                $sql = '';
 
66
 
 
67
                foreach ($fields as $field=>$attributes)
 
68
                {
 
69
                        // Numeric field names aren't allowed in databases, so if the key is
 
70
                        // numeric, we know it was assigned by PHP and the developer manually
 
71
                        // entered the field information, so we'll simply add it to the list
 
72
                        if (is_numeric($field))
 
73
                        {
 
74
                                $sql .= "\n\t$attributes";
 
75
                        }
 
76
                        else
 
77
                        {
 
78
                                $attributes = array_change_key_case($attributes, CASE_UPPER);
 
79
 
 
80
                                $sql .= "\n\t".$this->db->_protect_identifiers($field);
 
81
 
 
82
                                if (array_key_exists('NAME', $attributes))
 
83
                                {
 
84
                                        $sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' ';
 
85
                                }
 
86
 
 
87
                                if (array_key_exists('TYPE', $attributes))
 
88
                                {
 
89
                                        $sql .=  ' '.$attributes['TYPE'];
 
90
 
 
91
                                        if (array_key_exists('CONSTRAINT', $attributes))
 
92
                                        {
 
93
                                                switch ($attributes['TYPE'])
 
94
                                                {
 
95
                                                        case 'decimal':
 
96
                                                        case 'float':
 
97
                                                        case 'numeric':
 
98
                                                                $sql .= '('.implode(',', $attributes['CONSTRAINT']).')';
 
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                                                        break;
 
100
 
 
101
                                                        case 'enum':
 
102
                                                        case 'set':
 
103
                                                                $sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")';
 
104
                                                        break;
 
105
 
 
106
                                                        default:
 
107
                                                                $sql .= '('.$attributes['CONSTRAINT'].')';
 
108
                                                }
 
109
                                        }
 
110
                                }
 
111
 
 
112
                                if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 
113
                                {
 
114
                                        $sql .= ' UNSIGNED';
 
115
                                }
 
116
 
 
117
                                if (array_key_exists('DEFAULT', $attributes))
 
118
                                {
 
119
                                        $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 
120
                                }
 
121
 
 
122
                                if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 
123
                                {
 
124
                                        $sql .= ' NULL';
 
125
                                }
 
126
                                else
 
127
                                {
 
128
                                        $sql .= ' NOT NULL';
 
129
                                }
 
130
 
 
131
                                if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 
132
                                {
 
133
                                        $sql .= ' AUTO_INCREMENT';
 
134
                                }
 
135
                        }
 
136
 
 
137
                        // don't add a comma on the end of the last field
 
138
                        if (++$current_field_count < count($fields))
 
139
                        {
 
140
                                $sql .= ',';
 
141
                        }
 
142
                }
 
143
 
 
144
                return $sql;
 
145
        }
 
146
 
 
147
        // --------------------------------------------------------------------
 
148
 
 
149
        /**
 
150
         * Create Table
 
151
         *
 
152
         * @access      private
 
153
         * @param       string  the table name
 
154
         * @param       mixed   the fields
 
155
         * @param       mixed   primary key(s)
 
156
         * @param       mixed   key(s)
 
157
         * @param       boolean should 'IF NOT EXISTS' be added to the SQL
 
158
         * @return      bool
 
159
         */
 
160
        function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 
161
        {
 
162
                $sql = 'CREATE TABLE ';
 
163
 
 
164
                if ($if_not_exists === TRUE)
 
165
                {
 
166
                        $sql .= 'IF NOT EXISTS ';
 
167
                }
 
168
 
 
169
                $sql .= $this->db->_escape_identifiers($table)." (";
 
170
 
 
171
                $sql .= $this->_process_fields($fields);
 
172
 
 
173
                if (count($primary_keys) > 0)
 
174
                {
 
175
                        $key_name = $this->db->_protect_identifiers(implode('_', $primary_keys));
 
176
                        $primary_keys = $this->db->_protect_identifiers($primary_keys);
 
177
                        $sql .= ",\n\tPRIMARY KEY ".$key_name." (" . implode(', ', $primary_keys) . ")";
 
178
                }
 
179
 
 
180
                if (is_array($keys) && count($keys) > 0)
 
181
                {
 
182
                        foreach ($keys as $key)
 
183
                        {
 
184
                                if (is_array($key))
 
185
                                {
 
186
                                        $key_name = $this->db->_protect_identifiers(implode('_', $key));
 
187
                                        $key = $this->db->_protect_identifiers($key);
 
188
                                }
 
189
                                else
 
190
                                {
 
191
                                        $key_name = $this->db->_protect_identifiers($key);
 
192
                                        $key = array($key_name);
 
193
                                }
 
194
 
 
195
                                $sql .= ",\n\tKEY {$key_name} (" . implode(', ', $key) . ")";
 
196
                        }
 
197
                }
 
198
 
 
199
                $sql .= "\n) DEFAULT CHARACTER SET {$this->db->char_set} COLLATE {$this->db->dbcollat};";
 
200
 
 
201
                return $sql;
 
202
        }
 
203
 
 
204
        // --------------------------------------------------------------------
 
205
 
 
206
        /**
 
207
         * Drop Table
 
208
         *
 
209
         * @access      private
 
210
         * @return      string
 
211
         */
 
212
        function _drop_table($table)
 
213
        {
 
214
                return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table);
 
215
        }
 
216
 
 
217
        // --------------------------------------------------------------------
 
218
 
 
219
        /**
 
220
         * Alter table query
 
221
         *
 
222
         * Generates a platform-specific query so that a table can be altered
 
223
         * Called by add_column(), drop_column(), and column_alter(),
 
224
         *
 
225
         * @access      private
 
226
         * @param       string  the ALTER type (ADD, DROP, CHANGE)
 
227
         * @param       string  the column name
 
228
         * @param       array   fields
 
229
         * @param       string  the field after which we should add the new field
 
230
         * @return      object
 
231
         */
 
232
        function _alter_table($alter_type, $table, $fields, $after_field = '')
 
233
        {
 
234
                $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ";
 
235
 
 
236
                // DROP has everything it needs now.
 
237
                if ($alter_type == 'DROP')
 
238
                {
 
239
                        return $sql.$this->db->_protect_identifiers($fields);
 
240
                }
 
241
 
 
242
                $sql .= $this->_process_fields($fields);
 
243
 
 
244
                if ($after_field != '')
 
245
                {
 
246
                        $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 
247
                }
 
248
 
 
249
                return $sql;
 
250
        }
 
251
 
 
252
        // --------------------------------------------------------------------
 
253
 
 
254
        /**
 
255
         * Rename a table
 
256
         *
 
257
         * Generates a platform-specific query so that a table can be renamed
 
258
         *
 
259
         * @access      private
 
260
         * @param       string  the old table name
 
261
         * @param       string  the new table name
 
262
         * @return      string
 
263
         */
 
264
        function _rename_table($table_name, $new_table_name)
 
265
        {
 
266
                $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name);
 
267
                return $sql;
 
268
        }
 
269
 
 
270
}
 
271
 
 
272
/* End of file mysql_forge.php */
 
273
/* Location: ./system/database/drivers/mysql/mysql_forge.php */
 
 
b'\\ No newline at end of file'