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  • Committer: galaxyAbstractor
  • Date: 2013-04-10 15:58:59 UTC
  • mfrom: (20.1.1 lenasys)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: galaxyabstractor@gmail.com-20130410155859-cih60kaz5es8savt
CodeIgniter implementation of basic CMS system

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codeigniter/system/database/drivers/cubrid/cubrid_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              Esen Sagynov
 
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
 * CUBRID Forge Class
 
20
 *
 
21
 * @category    Database
 
22
 * @author              Esen Sagynov
 
23
 * @link                http://codeigniter.com/user_guide/database/
 
24
 */
 
25
class CI_DB_cubrid_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
                // CUBRID does not allow to create a database in SQL. The GUI tools
 
37
                // have to be used for this purpose.
 
38
                return FALSE;
 
39
        }
 
40
 
 
41
        // --------------------------------------------------------------------
 
42
 
 
43
        /**
 
44
         * Drop database
 
45
         *
 
46
         * @access      private
 
47
         * @param       string  the database name
 
48
         * @return      bool
 
49
         */
 
50
        function _drop_database($name)
 
51
        {
 
52
                // CUBRID does not allow to drop a database in SQL. The GUI tools
 
53
                // have to be used for this purpose.
 
54
                return FALSE;
 
55
        }
 
56
 
 
57
        // --------------------------------------------------------------------
 
58
 
 
59
        /**
 
60
         * Process Fields
 
61
         *
 
62
         * @access      private
 
63
         * @param       mixed   the fields
 
64
         * @return      string
 
65
         */
 
66
        function _process_fields($fields)
 
67
        {
 
68
                $current_field_count = 0;
 
69
                $sql = '';
 
70
 
 
71
                foreach ($fields as $field=>$attributes)
 
72
                {
 
73
                        // Numeric field names aren't allowed in databases, so if the key is
 
74
                        // numeric, we know it was assigned by PHP and the developer manually
 
75
                        // entered the field information, so we'll simply add it to the list
 
76
                        if (is_numeric($field))
 
77
                        {
 
78
                                $sql .= "\n\t$attributes";
 
79
                        }
 
80
                        else
 
81
                        {
 
82
                                $attributes = array_change_key_case($attributes, CASE_UPPER);
 
83
 
 
84
                                $sql .= "\n\t\"" . $this->db->_protect_identifiers($field) . "\"";
 
85
 
 
86
                                if (array_key_exists('NAME', $attributes))
 
87
                                {
 
88
                                        $sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' ';
 
89
                                }
 
90
 
 
91
                                if (array_key_exists('TYPE', $attributes))
 
92
                                {
 
93
                                        $sql .= ' '.$attributes['TYPE'];
 
94
 
 
95
                                        if (array_key_exists('CONSTRAINT', $attributes))
 
96
                                        {
 
97
                                                switch ($attributes['TYPE'])
 
98
                                                {
 
99
                                                        case 'decimal':
 
100
                                                        case 'float':
 
101
                                                        case 'numeric':
 
102
                                                                $sql .= '('.implode(',', $attributes['CONSTRAINT']).')';
 
103
                                                                break;
 
104
                                                        case 'enum':    // As of version 8.4.0 CUBRID does not support
 
105
                                                                                        // enum data type.
 
106
                                                                                        break;
 
107
                                                        case 'set':
 
108
                                                                $sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")';
 
109
                                                                break;
 
110
                                                        default:
 
111
                                                                $sql .= '('.$attributes['CONSTRAINT'].')';
 
112
                                                }
 
113
                                        }
 
114
                                }
 
115
 
 
116
                                if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 
117
                                {
 
118
                                        //$sql .= ' UNSIGNED';
 
119
                                        // As of version 8.4.0 CUBRID does not support UNSIGNED INTEGER data type.
 
120
                                        // Will be supported in the next release as a part of MySQL Compatibility.
 
121
                                }
 
122
 
 
123
                                if (array_key_exists('DEFAULT', $attributes))
 
124
                                {
 
125
                                        $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 
126
                                }
 
127
 
 
128
                                if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 
129
                                {
 
130
                                        $sql .= ' NULL';
 
131
                                }
 
132
                                else
 
133
                                {
 
134
                                        $sql .= ' NOT NULL';
 
135
                                }
 
136
 
 
137
                                if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 
138
                                {
 
139
                                        $sql .= ' AUTO_INCREMENT';
 
140
                                }
 
141
 
 
142
                                if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE)
 
143
                                {
 
144
                                        $sql .= ' UNIQUE';
 
145
                                }
 
146
                        }
 
147
 
 
148
                        // don't add a comma on the end of the last field
 
149
                        if (++$current_field_count < count($fields))
 
150
                        {
 
151
                                $sql .= ',';
 
152
                        }
 
153
                }
 
154
 
 
155
                return $sql;
 
156
        }
 
157
 
 
158
        // --------------------------------------------------------------------
 
159
 
 
160
        /**
 
161
         * Create Table
 
162
         *
 
163
         * @access      private
 
164
         * @param       string  the table name
 
165
         * @param       mixed   the fields
 
166
         * @param       mixed   primary key(s)
 
167
         * @param       mixed   key(s)
 
168
         * @param       boolean should 'IF NOT EXISTS' be added to the SQL
 
169
         * @return      bool
 
170
         */
 
171
        function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 
172
        {
 
173
                $sql = 'CREATE TABLE ';
 
174
 
 
175
                if ($if_not_exists === TRUE)
 
176
                {
 
177
                        //$sql .= 'IF NOT EXISTS ';
 
178
                        // As of version 8.4.0 CUBRID does not support this SQL syntax.
 
179
                }
 
180
 
 
181
                $sql .= $this->db->_escape_identifiers($table)." (";
 
182
 
 
183
                $sql .= $this->_process_fields($fields);
 
184
 
 
185
                // If there is a PK defined
 
186
                if (count($primary_keys) > 0)
 
187
                {
 
188
                        $key_name = "pk_" . $table . "_" .
 
189
                                $this->db->_protect_identifiers(implode('_', $primary_keys));
 
190
                        
 
191
                        $primary_keys = $this->db->_protect_identifiers($primary_keys);
 
192
                        $sql .= ",\n\tCONSTRAINT " . $key_name . " PRIMARY KEY(" . implode(', ', $primary_keys) . ")";
 
193
                }
 
194
 
 
195
                if (is_array($keys) && count($keys) > 0)
 
196
                {
 
197
                        foreach ($keys as $key)
 
198
                        {
 
199
                                if (is_array($key))
 
200
                                {
 
201
                                        $key_name = $this->db->_protect_identifiers(implode('_', $key));
 
202
                                        $key = $this->db->_protect_identifiers($key);
 
203
                                }
 
204
                                else
 
205
                                {
 
206
                                        $key_name = $this->db->_protect_identifiers($key);
 
207
                                        $key = array($key_name);
 
208
                                }
 
209
                                
 
210
                                $sql .= ",\n\tKEY \"{$key_name}\" (" . implode(', ', $key) . ")";
 
211
                        }
 
212
                }
 
213
 
 
214
                $sql .= "\n);";
 
215
 
 
216
                return $sql;
 
217
        }
 
218
 
 
219
        // --------------------------------------------------------------------
 
220
 
 
221
        /**
 
222
         * Drop Table
 
223
         *
 
224
         * @access      private
 
225
         * @return      string
 
226
         */
 
227
        function _drop_table($table)
 
228
        {
 
229
                return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table);
 
230
        }
 
231
 
 
232
        // --------------------------------------------------------------------
 
233
 
 
234
        /**
 
235
         * Alter table query
 
236
         *
 
237
         * Generates a platform-specific query so that a table can be altered
 
238
         * Called by add_column(), drop_column(), and column_alter(),
 
239
         *
 
240
         * @access      private
 
241
         * @param       string  the ALTER type (ADD, DROP, CHANGE)
 
242
         * @param       string  the column name
 
243
         * @param       array   fields
 
244
         * @param       string  the field after which we should add the new field
 
245
         * @return      object
 
246
         */
 
247
        function _alter_table($alter_type, $table, $fields, $after_field = '')
 
248
        {
 
249
                $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ";
 
250
 
 
251
                // DROP has everything it needs now.
 
252
                if ($alter_type == 'DROP')
 
253
                {
 
254
                        return $sql.$this->db->_protect_identifiers($fields);
 
255
                }
 
256
 
 
257
                $sql .= $this->_process_fields($fields);
 
258
 
 
259
                if ($after_field != '')
 
260
                {
 
261
                        $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 
262
                }
 
263
 
 
264
                return $sql;
 
265
        }
 
266
 
 
267
        // --------------------------------------------------------------------
 
268
 
 
269
        /**
 
270
         * Rename a table
 
271
         *
 
272
         * Generates a platform-specific query so that a table can be renamed
 
273
         *
 
274
         * @access      private
 
275
         * @param       string  the old table name
 
276
         * @param       string  the new table name
 
277
         * @return      string
 
278
         */
 
279
        function _rename_table($table_name, $new_table_name)
 
280
        {
 
281
                $sql = 'RENAME TABLE '.$this->db->_protect_identifiers($table_name)." AS ".$this->db->_protect_identifiers($new_table_name);
 
282
                return $sql;
 
283
        }
 
284
 
 
285
}
 
286
 
 
287
/* End of file cubrid_forge.php */
 
288
/* Location: ./system/database/drivers/cubrid/cubrid_forge.php */
 
 
b'\\ No newline at end of file'