1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
<?php
/**
*
* @package db
* @copyright (c) 2014 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\db\migration;
/**
* The schema generator generates the schema based on the existing migrations
*
* @package db
*/
class schema_generator
{
/** @var \phpbb\config\config */
protected $config;
/** @var \phpbb\db\driver\driver */
protected $db;
/** @var \phpbb\db\tools */
protected $db_tools;
/** @var array */
protected $class_names;
/** @var string */
protected $table_prefix;
/** @var string */
protected $phpbb_root_path;
/** @var string */
protected $php_ext;
/** @var array */
protected $tables;
/**
* Constructor
*/
public function __construct(array $class_names, \phpbb\config\config $config, \phpbb\db\driver\driver $db, \phpbb\db\tools $db_tools, $phpbb_root_path, $php_ext, $table_prefix)
{
$this->config = $config;
$this->db = $db;
$this->db_tools = $db_tools;
$this->class_names = $class_names;
$this->phpbb_root_path = $phpbb_root_path;
$this->php_ext = $php_ext;
$this->table_prefix = $table_prefix;
}
/**
* Loads all migrations and their application state from the database.
*
* @return array
*/
public function get_schema()
{
if (!empty($this->tables))
{
return $this->tables;
}
$migrations = $this->class_names;
$tree = array();
while (!empty($migrations))
{
foreach ($migrations as $migration_class)
{
$open_dependencies = array_diff($migration_class::depends_on(), $tree);
if (empty($open_dependencies))
{
$migration = new $migration_class($this->config, $this->db, $this->db_tools, $this->phpbb_root_path, $this->php_ext, $this->table_prefix);
$tree[] = $migration_class;
$migration_key = array_search($migration_class, $migrations);
foreach ($migration->update_schema() as $change_type => $data)
{
if ($change_type === 'add_tables')
{
foreach ($data as $table => $table_data)
{
$this->tables[$table] = $table_data;
}
}
else if ($change_type === 'drop_tables')
{
foreach ($data as $table)
{
unset($this->tables[$table]);
}
}
else if ($change_type === 'add_columns')
{
foreach ($data as $table => $add_columns)
{
foreach ($add_columns as $column => $column_data)
{
$this->tables[$table]['COLUMNS'][$column] = $column_data;
}
}
}
else if ($change_type === 'change_columns')
{
foreach ($data as $table => $change_columns)
{
foreach ($change_columns as $column => $column_data)
{
$this->tables[$table]['COLUMNS'][$column] = $column_data;
}
}
}
else if ($change_type === 'drop_columns')
{
foreach ($data as $table => $drop_columns)
{
if (is_array($drop_columns))
{
foreach ($drop_columns as $column)
{
unset($this->tables[$table]['COLUMNS'][$column]);
}
}
else
{
unset($this->tables[$table]['COLUMNS'][$drop_columns]);
}
}
}
else if ($change_type === 'add_unique_index')
{
foreach ($data as $table => $add_index)
{
foreach ($add_index as $key => $index_data)
{
$this->tables[$table]['KEYS'][$key] = array('UNIQUE', $index_data);
}
}
}
else if ($change_type === 'add_index')
{
foreach ($data as $table => $add_index)
{
foreach ($add_index as $key => $index_data)
{
$this->tables[$table]['KEYS'][$key] = array('INDEX', $index_data);
}
}
}
else if ($change_type === 'drop_keys')
{
foreach ($data as $table => $drop_keys)
{
foreach ($drop_keys as $key)
{
unset($this->tables[$table]['KEYS'][$key]);
}
}
}
else
{
var_dump($change_type);
}
}
unset($migrations[$migration_key]);
}
}
}
ksort($this->tables);
return $this->tables;
}
}
|
