1: <?php
2:
3: 4: 5: 6: 7: 8: 9: 10:
11:
12: namespace Nette\Database\Drivers;
13:
14: use Nette;
15:
16:
17:
18: 19: 20: 21: 22:
23: class SqliteDriver extends Nette\Object implements Nette\Database\ISupplementalDriver
24: {
25:
26: private $connection;
27:
28:
29: private $fmtDateTime;
30:
31:
32:
33: public function __construct(Nette\Database\Connection $connection, array $options)
34: {
35: $this->connection = $connection;
36: $this->fmtDateTime = isset($options['formatDateTime']) ? $options['formatDateTime'] : 'U';
37:
38: }
39:
40:
41:
42:
43:
44:
45:
46: 47: 48:
49: public function delimite($name)
50: {
51: return '[' . strtr($name, '[]', ' ') . ']';
52: }
53:
54:
55:
56: 57: 58:
59: public function formatDateTime(\DateTime $value)
60: {
61: return $value->format($this->fmtDateTime);
62: }
63:
64:
65:
66: 67: 68:
69: public function formatLike($value, $pos)
70: {
71: $value = addcslashes(substr($this->connection->quote($value), 1, -1), '%_\\');
72: return ($pos <= 0 ? "'%" : "'") . $value . ($pos >= 0 ? "%'" : "'") . " ESCAPE '\\'";
73: }
74:
75:
76:
77: 78: 79:
80: public function applyLimit(&$sql, $limit, $offset)
81: {
82: if ($limit >= 0 || $offset > 0) {
83: $sql .= ' LIMIT ' . $limit . ($offset > 0 ? ' OFFSET ' . (int) $offset : '');
84: }
85: }
86:
87:
88:
89: 90: 91:
92: public function normalizeRow($row, $statement)
93: {
94: return $row;
95: }
96:
97:
98:
99:
100:
101:
102:
103: 104: 105:
106: public function getTables()
107: {
108: return $this->connection->query("
109: SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
110: UNION ALL
111: SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
112: ORDER BY name
113: ")->fetchAll();
114: }
115:
116:
117:
118: 119: 120:
121: public function getColumns($table)
122: {
123: $meta = $this->connection->query("
124: SELECT sql FROM sqlite_master WHERE type = 'table' AND name = {$this->connection->quote($table)}
125: UNION ALL
126: SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = {$this->connection->quote($table)}
127: ")->fetch();
128:
129: $columns = array();
130: foreach ($this->connection->query("PRAGMA table_info({$this->delimite($table)})") as $row) {
131: $column = $row['name'];
132: $pattern = "/(\"$column\"|\[$column\]|$column)\s+[^,]+\s+PRIMARY\s+KEY\s+AUTOINCREMENT/Ui";
133: $type = explode('(', $row['type']);
134: $columns[] = array(
135: 'name' => $column,
136: 'table' => $table,
137: 'fullname' => "$table.$column",
138: 'nativetype' => strtoupper($type[0]),
139: 'size' => isset($type[1]) ? (int) $type[1] : NULL,
140: 'nullable' => $row['notnull'] == '0',
141: 'default' => $row['dflt_value'],
142: 'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
143: 'primary' => $row['pk'] == '1',
144: 'vendor' => (array) $row,
145: );
146: }
147: return $columns;
148: }
149:
150:
151:
152: 153: 154:
155: public function getIndexes($table)
156: {
157: $indexes = array();
158: foreach ($this->connection->query("PRAGMA index_list({$this->delimite($table)})") as $row) {
159: $indexes[$row['name']]['name'] = $row['name'];
160: $indexes[$row['name']]['unique'] = (bool) $row['unique'];
161: }
162:
163: foreach ($indexes as $index => $values) {
164: $res = $this->connection->query("PRAGMA index_info({$this->delimite($index)})");
165: while ($row = $res->fetch(TRUE)) {
166: $indexes[$index]['columns'][$row['seqno']] = $row['name'];
167: }
168: }
169:
170: $columns = $this->getColumns($table);
171: foreach ($indexes as $index => $values) {
172: $column = $indexes[$index]['columns'][0];
173: $primary = FALSE;
174: foreach ($columns as $info) {
175: if ($column == $info['name']) {
176: $primary = $info['primary'];
177: break;
178: }
179: }
180: $indexes[$index]['primary'] = (bool) $primary;
181: }
182: if (!$indexes) {
183: foreach ($columns as $column) {
184: if ($column['vendor']['pk']) {
185: $indexes[] = array(
186: 'name' => 'ROWID',
187: 'unique' => TRUE,
188: 'primary' => TRUE,
189: 'columns' => array($column['name']),
190: );
191: break;
192: }
193: }
194: }
195:
196: return array_values($indexes);
197: }
198:
199:
200:
201: 202: 203:
204: public function getForeignKeys($table)
205: {
206: $keys = array();
207: foreach ($this->connection->query("PRAGMA foreign_key_list({$this->delimite($table)})") as $row) {
208: $keys[$row['id']]['name'] = $row['id'];
209: $keys[$row['id']]['local'][$row['seq']] = $row['from'];
210: $keys[$row['id']]['table'] = $row['table'];
211: $keys[$row['id']]['foreign'][$row['seq']] = $row['to'];
212: $keys[$row['id']]['onDelete'] = $row['on_delete'];
213: $keys[$row['id']]['onUpdate'] = $row['on_update'];
214:
215: if ($keys[$row['id']]['foreign'][0] == NULL) {
216: $keys[$row['id']]['foreign'] = NULL;
217: }
218: }
219: return array_values($keys);
220: }
221:
222:
223:
224: 225: 226:
227: public function isSupported($item)
228: {
229: return FALSE;
230: }
231:
232: }
233: