1 | <?php |
---|
2 | /** |
---|
3 | * nestedTree class is based on excellent work of Kuzma Feskov |
---|
4 | * (http://php.russofile.ru/ru/authors/sql/nestedsets01/) |
---|
5 | * |
---|
6 | * One day we'll move nestedTree to Clearbricks. |
---|
7 | * |
---|
8 | * @package Dotclear |
---|
9 | * @subpackage Core |
---|
10 | * |
---|
11 | * @copyright Olivier Meunier & Association Dotclear |
---|
12 | * @copyright GPL-2.0-only |
---|
13 | * |
---|
14 | */ |
---|
15 | |
---|
16 | if (!defined('DC_RC_PATH')) {return;} |
---|
17 | |
---|
18 | class dcCategories extends nestedTree |
---|
19 | { |
---|
20 | protected $f_left = 'cat_lft'; |
---|
21 | protected $f_right = 'cat_rgt'; |
---|
22 | protected $f_id = 'cat_id'; |
---|
23 | |
---|
24 | protected $core; |
---|
25 | protected $blog_id; |
---|
26 | |
---|
27 | public function __construct($core) |
---|
28 | { |
---|
29 | $this->core = &$core; |
---|
30 | $this->con = &$core->con; |
---|
31 | $this->blog_id = $core->blog->id; |
---|
32 | $this->table = $core->prefix . 'category'; |
---|
33 | $this->add_condition = ['blog_id' => "'" . $this->con->escape($this->blog_id) . "'"]; |
---|
34 | } |
---|
35 | |
---|
36 | public function getChildren($start = 0, $id = null, $sort = 'asc', $fields = []) |
---|
37 | { |
---|
38 | $fields = array_merge(['cat_title', 'cat_url', 'cat_desc'], $fields); |
---|
39 | return parent::getChildren($start, $id, $sort, $fields); |
---|
40 | } |
---|
41 | |
---|
42 | public function getParents($id, $fields = []) |
---|
43 | { |
---|
44 | $fields = array_merge(['cat_title', 'cat_url', 'cat_desc'], $fields); |
---|
45 | return parent::getParents($id, $fields); |
---|
46 | } |
---|
47 | |
---|
48 | public function getParent($id, $fields = []) |
---|
49 | { |
---|
50 | $fields = array_merge(['cat_title', 'cat_url', 'cat_desc'], $fields); |
---|
51 | return parent::getParent($id, $fields); |
---|
52 | } |
---|
53 | } |
---|
54 | |
---|
55 | abstract class nestedTree |
---|
56 | { |
---|
57 | protected $con; |
---|
58 | |
---|
59 | protected $table; |
---|
60 | protected $f_left; |
---|
61 | protected $f_right; |
---|
62 | protected $f_id; |
---|
63 | |
---|
64 | protected $add_condition = []; |
---|
65 | |
---|
66 | protected $parents; |
---|
67 | |
---|
68 | public function __construct($con) |
---|
69 | { |
---|
70 | $this->con = &$con; |
---|
71 | } |
---|
72 | |
---|
73 | public function getChildren($start = 0, $id = null, $sort = 'asc', $fields = []) |
---|
74 | { |
---|
75 | $fields = count($fields) > 0 ? ', C2.' . implode(', C2.', $fields) : ''; |
---|
76 | |
---|
77 | $sql = 'SELECT C2.' . $this->f_id . ', C2.' . $this->f_left . ', C2.' . $this->f_right . ', COUNT(C1.' . $this->f_id . ') AS level ' |
---|
78 | . $fields . ' ' |
---|
79 | . 'FROM ' . $this->table . ' AS C1, ' . $this->table . ' AS C2 %s ' |
---|
80 | . 'WHERE C2.' . $this->f_left . ' BETWEEN C1.' . $this->f_left . ' AND C1.' . $this->f_right . ' ' |
---|
81 | . ' %s ' |
---|
82 | . $this->getCondition('AND', 'C2.') |
---|
83 | . $this->getCondition('AND', 'C1.') |
---|
84 | . 'GROUP BY C2.' . $this->f_id . ', C2.' . $this->f_left . ', C2.' . $this->f_right . ' ' . $fields . ' ' |
---|
85 | . ' %s ' |
---|
86 | . 'ORDER BY C2.' . $this->f_left . ' ' . ($sort == 'asc' ? 'ASC' : 'DESC') . ' '; |
---|
87 | |
---|
88 | $from = $where = ''; |
---|
89 | if ($start > 0) { |
---|
90 | $from = ', ' . $this->table . ' AS C3'; |
---|
91 | $where = 'AND C3.' . $this->f_id . ' = ' . (integer) $start . ' AND C1.' . $this->f_left . ' >= C3.' . $this->f_left . ' AND C1.' . $this->f_right . ' <= C3.' . $this->f_right; |
---|
92 | $where .= $this->getCondition('AND', 'C3.'); |
---|
93 | } |
---|
94 | |
---|
95 | $having = ''; |
---|
96 | if ($id !== null) { |
---|
97 | $having = ' HAVING C2.' . $this->f_id . ' = ' . (integer) $id; |
---|
98 | } |
---|
99 | |
---|
100 | $sql = sprintf($sql, $from, $where, $having); |
---|
101 | |
---|
102 | return $this->con->select($sql); |
---|
103 | } |
---|
104 | |
---|
105 | public function getParents($id, $fields = []) |
---|
106 | { |
---|
107 | $fields = count($fields) > 0 ? ', C1.' . implode(', C1.', $fields) : ''; |
---|
108 | |
---|
109 | return $this->con->select( |
---|
110 | 'SELECT C1.' . $this->f_id . ' ' . $fields . ' ' |
---|
111 | . 'FROM ' . $this->table . ' C1, ' . $this->table . ' C2 ' |
---|
112 | . 'WHERE C2.' . $this->f_id . ' = ' . (integer) $id . ' ' |
---|
113 | . 'AND C1.' . $this->f_left . ' < C2.' . $this->f_left . ' ' |
---|
114 | . 'AND C1.' . $this->f_right . ' > C2.' . $this->f_right . ' ' |
---|
115 | . $this->getCondition('AND', 'C2.') |
---|
116 | . $this->getCondition('AND', 'C1.') |
---|
117 | . 'ORDER BY C1.' . $this->f_left . ' ASC ' |
---|
118 | ); |
---|
119 | } |
---|
120 | |
---|
121 | public function getParent($id, $fields = []) |
---|
122 | { |
---|
123 | $fields = count($fields) > 0 ? ', C1.' . implode(', C1.', $fields) : ''; |
---|
124 | |
---|
125 | return $this->con->select( |
---|
126 | 'SELECT C1.' . $this->f_id . ' ' . $fields . ' ' |
---|
127 | . 'FROM ' . $this->table . ' C1, ' . $this->table . ' C2 ' |
---|
128 | . 'WHERE C2.' . $this->f_id . ' = ' . (integer) $id . ' ' |
---|
129 | . 'AND C1.' . $this->f_left . ' < C2.' . $this->f_left . ' ' |
---|
130 | . 'AND C1.' . $this->f_right . ' > C2.' . $this->f_right . ' ' |
---|
131 | . $this->getCondition('AND', 'C2.') |
---|
132 | . $this->getCondition('AND', 'C1.') |
---|
133 | . 'ORDER BY C1.' . $this->f_left . ' DESC ' |
---|
134 | . $this->con->limit(1) |
---|
135 | ); |
---|
136 | } |
---|
137 | |
---|
138 | /* ------------------------------------------------ |
---|
139 | * Tree manipulations |
---|
140 | * ---------------------------------------------- */ |
---|
141 | public function addNode($data, $target = 0) |
---|
142 | { |
---|
143 | if (!is_array($data) && !($data instanceof cursor)) { |
---|
144 | throw new Exception('Invalid data block'); |
---|
145 | } |
---|
146 | |
---|
147 | if (is_array($data)) { |
---|
148 | $D = $data; |
---|
149 | $data = $this->con->openCursor($this->table); |
---|
150 | foreach ($D as $k => $v) { |
---|
151 | $data->{$k} = $v; |
---|
152 | } |
---|
153 | unset($D); |
---|
154 | } |
---|
155 | |
---|
156 | # We want to put it at the end |
---|
157 | $this->con->writeLock($this->table); |
---|
158 | try |
---|
159 | { |
---|
160 | $rs = $this->con->select('SELECT MAX(' . $this->f_id . ') as n_id FROM ' . $this->table); |
---|
161 | $id = $rs->n_id; |
---|
162 | |
---|
163 | $rs = $this->con->select( |
---|
164 | 'SELECT MAX(' . $this->f_right . ') as n_r ' . |
---|
165 | 'FROM ' . $this->table . |
---|
166 | $this->getCondition('WHERE') |
---|
167 | ); |
---|
168 | $last = $rs->n_r == 0 ? 1 : $rs->n_r; |
---|
169 | |
---|
170 | $data->{$this->f_id} = $id + 1; |
---|
171 | $data->{$this->f_left} = $last + 1; |
---|
172 | $data->{$this->f_right} = $last + 2; |
---|
173 | |
---|
174 | $data->insert(); |
---|
175 | $this->con->unlock(); |
---|
176 | try { |
---|
177 | $this->setNodeParent($id + 1, $target); |
---|
178 | return $data->{$this->f_id}; |
---|
179 | } catch (Exception $e) {} # We don't mind error in this case |
---|
180 | } catch (Exception $e) { |
---|
181 | $this->con->unlock(); |
---|
182 | throw $e; |
---|
183 | } |
---|
184 | } |
---|
185 | |
---|
186 | public function updatePosition($id, $left, $right) |
---|
187 | { |
---|
188 | $node_left = (integer) $left; |
---|
189 | $node_right = (integer) $right; |
---|
190 | $node_id = (integer) $id; |
---|
191 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
192 | . $this->f_left . ' = ' . $node_left . ', ' |
---|
193 | . $this->f_right . ' = ' . $node_right |
---|
194 | . ' WHERE ' . $this->f_id . ' = ' . $node_id |
---|
195 | . $this->getCondition(); |
---|
196 | |
---|
197 | $this->con->begin(); |
---|
198 | try { |
---|
199 | $this->con->execute($sql); |
---|
200 | $this->con->commit(); |
---|
201 | } catch (Exception $e) { |
---|
202 | $this->con->rollback(); |
---|
203 | throw $e; |
---|
204 | } |
---|
205 | } |
---|
206 | |
---|
207 | public function deleteNode($node, $keep_children = true) |
---|
208 | { |
---|
209 | $node = (integer) $node; |
---|
210 | |
---|
211 | $rs = $this->getChildren(0, $node); |
---|
212 | if ($rs->isEmpty()) { |
---|
213 | throw new Exception('Node does not exist.'); |
---|
214 | } |
---|
215 | $node_left = (integer) $rs->{$this->f_left}; |
---|
216 | $node_right = (integer) $rs->{$this->f_right}; |
---|
217 | |
---|
218 | try |
---|
219 | { |
---|
220 | $this->con->begin(); |
---|
221 | |
---|
222 | if ($keep_children) { |
---|
223 | $this->con->execute('DELETE FROM ' . $this->table . ' WHERE ' . $this->f_id . ' = ' . $node); |
---|
224 | |
---|
225 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
226 | . $this->f_right . ' = CASE ' |
---|
227 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
228 | . 'THEN ' . $this->f_right . ' - 1 ' |
---|
229 | . 'WHEN ' . $this->f_right . ' > ' . $node_right . ' ' |
---|
230 | . 'THEN ' . $this->f_right . ' - 2 ' |
---|
231 | . 'ELSE ' . $this->f_right . ' ' |
---|
232 | . 'END, ' |
---|
233 | . $this->f_left . ' = CASE ' |
---|
234 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
235 | . 'THEN ' . $this->f_left . ' - 1 ' |
---|
236 | . 'WHEN ' . $this->f_left . ' > ' . $node_right . ' ' |
---|
237 | . 'THEN ' . $this->f_left . ' - 2 ' |
---|
238 | . 'ELSE ' . $this->f_left . ' ' |
---|
239 | . 'END ' |
---|
240 | . 'WHERE ' . $this->f_right . ' > ' . $node_left |
---|
241 | . $this->getCondition(); |
---|
242 | |
---|
243 | $this->con->execute($sql); |
---|
244 | } else { |
---|
245 | $this->con->execute('DELETE FROM ' . $this->table . ' WHERE ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right); |
---|
246 | |
---|
247 | $node_delta = $node_right - $node_left + 1; |
---|
248 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
249 | . $this->f_left . ' = CASE ' |
---|
250 | . 'WHEN ' . $this->f_left . ' > ' . $node_left . ' ' |
---|
251 | . 'THEN ' . $this->f_left . ' - (' . $node_delta . ') ' |
---|
252 | . 'ELSE ' . $this->f_left . ' ' |
---|
253 | . 'END, ' |
---|
254 | . $this->f_right . ' = CASE ' |
---|
255 | . 'WHEN ' . $this->f_right . ' > ' . $node_left . ' ' |
---|
256 | . 'THEN ' . $this->f_right . ' - (' . $node_delta . ') ' |
---|
257 | . 'ELSE ' . $this->f_right . ' ' |
---|
258 | . 'END ' |
---|
259 | . 'WHERE ' . $this->f_right . ' > ' . $node_right |
---|
260 | . $this->getCondition(); |
---|
261 | } |
---|
262 | |
---|
263 | $this->con->commit(); |
---|
264 | } catch (Exception $e) { |
---|
265 | $this->con->rollback(); |
---|
266 | throw $e; |
---|
267 | } |
---|
268 | } |
---|
269 | |
---|
270 | public function resetOrder() |
---|
271 | { |
---|
272 | $rs = $this->con->select( |
---|
273 | 'SELECT ' . $this->f_id . ' ' |
---|
274 | . 'FROM ' . $this->table . ' ' |
---|
275 | . $this->getCondition('WHERE') |
---|
276 | . 'ORDER BY ' . $this->f_left . ' ASC ' |
---|
277 | ); |
---|
278 | |
---|
279 | $lft = 2; |
---|
280 | $this->con->begin(); |
---|
281 | try |
---|
282 | { |
---|
283 | while ($rs->fetch()) { |
---|
284 | $this->con->execute( |
---|
285 | 'UPDATE ' . $this->table . ' SET ' |
---|
286 | . $this->f_left . ' = ' . ($lft++) . ', ' |
---|
287 | . $this->f_right . ' = ' . ($lft++) . ' ' |
---|
288 | . 'WHERE ' . $this->f_id . ' = ' . (integer) $rs->{$this->f_id} . ' ' |
---|
289 | . $this->getCondition() |
---|
290 | ); |
---|
291 | } |
---|
292 | $this->con->commit(); |
---|
293 | } catch (Exception $e) { |
---|
294 | $this->con->rollback(); |
---|
295 | throw $e; |
---|
296 | } |
---|
297 | } |
---|
298 | |
---|
299 | public function setNodeParent($node, $target = 0) |
---|
300 | { |
---|
301 | if ($node == $target) { |
---|
302 | return; |
---|
303 | } |
---|
304 | $node = (integer) $node; |
---|
305 | $target = (integer) $target; |
---|
306 | |
---|
307 | $rs = $this->getChildren(0, $node); |
---|
308 | if ($rs->isEmpty()) { |
---|
309 | throw new Exception('Node does not exist.'); |
---|
310 | } |
---|
311 | $node_left = (integer) $rs->{$this->f_left}; |
---|
312 | $node_right = (integer) $rs->{$this->f_right}; |
---|
313 | $node_level = (integer) $rs->level; |
---|
314 | |
---|
315 | if ($target > 0) { |
---|
316 | $rs = $this->getChildren(0, $target); |
---|
317 | } else { |
---|
318 | $rs = $this->con->select( |
---|
319 | 'SELECT MIN(' . $this->f_left . ')-1 AS ' . $this->f_left . ', MAX(' . $this->f_right . ')+1 AS ' . $this->f_right . ', 0 AS level ' . |
---|
320 | 'FROM ' . $this->table . ' ' . |
---|
321 | $this->getCondition('WHERE') |
---|
322 | ); |
---|
323 | } |
---|
324 | $target_left = (integer) $rs->{$this->f_left}; |
---|
325 | $target_right = (integer) $rs->{$this->f_right}; |
---|
326 | $target_level = (integer) $rs->level; |
---|
327 | |
---|
328 | if ($node_left == $target_left |
---|
329 | || ($target_left >= $node_left && $target_left <= $node_right) |
---|
330 | || ($node_level == $target_level + 1 && $node_left > $target_left && $node_right < $target_right) |
---|
331 | ) { |
---|
332 | throw new Exception('Cannot move tree'); |
---|
333 | } |
---|
334 | |
---|
335 | if ($target_left < $node_left && $target_right > $node_right && $target_level < $node_level - 1) { |
---|
336 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
337 | . $this->f_right . ' = CASE ' |
---|
338 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . ($node_right + 1) . ' AND ' . ($target_right - 1) . ' ' |
---|
339 | . 'THEN ' . $this->f_right . '-(' . ($node_right - $node_left + 1) . ') ' |
---|
340 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
341 | . 'THEN ' . $this->f_right . '+' . ((($target_right - $node_right - $node_level + $target_level) / 2) * 2 + $node_level - $target_level - 1) . ' ' |
---|
342 | . 'ELSE ' |
---|
343 | . $this->f_right . ' ' |
---|
344 | . 'END, ' |
---|
345 | . $this->f_left . ' = CASE ' |
---|
346 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($node_right + 1) . ' AND ' . ($target_right - 1) . ' ' |
---|
347 | . 'THEN ' . $this->f_left . '-(' . ($node_right - $node_left + 1) . ') ' |
---|
348 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
349 | . 'THEN ' . $this->f_left . '+' . ((($target_right - $node_right - $node_level + $target_level) / 2) * 2 + $node_level - $target_level - 1) . ' ' |
---|
350 | . 'ELSE ' . $this->f_left . ' ' |
---|
351 | . 'END ' |
---|
352 | . 'WHERE ' . $this->f_left . ' BETWEEN ' . ($target_left + 1) . ' AND ' . ($target_right - 1) . ''; |
---|
353 | } elseif ($target_left < $node_left) { |
---|
354 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
355 | . $this->f_left . ' = CASE ' |
---|
356 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $target_right . ' AND ' . ($node_left - 1) . ' ' |
---|
357 | . 'THEN ' . $this->f_left . '+' . ($node_right - $node_left + 1) . ' ' |
---|
358 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
359 | . 'THEN ' . $this->f_left . '-(' . ($node_left - $target_right) . ') ' |
---|
360 | . 'ELSE ' . $this->f_left . ' ' |
---|
361 | . 'END, ' |
---|
362 | . $this->f_right . ' = CASE ' |
---|
363 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . $target_right . ' AND ' . $node_left . ' ' |
---|
364 | . 'THEN ' . $this->f_right . '+' . ($node_right - $node_left + 1) . ' ' |
---|
365 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
366 | . 'THEN ' . $this->f_right . '-(' . ($node_left - $target_right) . ') ' |
---|
367 | . 'ELSE ' . $this->f_right . ' ' |
---|
368 | . 'END ' |
---|
369 | . 'WHERE (' . $this->f_left . ' BETWEEN ' . $target_left . ' AND ' . $node_right . ' ' |
---|
370 | . 'OR ' . $this->f_right . ' BETWEEN ' . $target_left . ' AND ' . $node_right . ')'; |
---|
371 | } else { |
---|
372 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
373 | . $this->f_left . ' = CASE ' |
---|
374 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_right . ' AND ' . $target_right . ' ' |
---|
375 | . 'THEN ' . $this->f_left . '-' . ($node_right - $node_left + 1) . ' ' |
---|
376 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
377 | . 'THEN ' . $this->f_left . '+' . ($target_right - 1 - $node_right) . ' ' |
---|
378 | . 'ELSE ' . $this->f_left . ' ' |
---|
379 | . 'END, ' |
---|
380 | . $this->f_right . ' = CASE ' |
---|
381 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . ($node_right + 1) . ' AND ' . ($target_right - 1) . ' ' |
---|
382 | . 'THEN ' . $this->f_right . '-' . ($node_right - $node_left + 1) . ' ' |
---|
383 | . 'WHEN ' . $this->f_right . ' BETWEEN ' . $node_left . ' AND ' . $node_right . ' ' |
---|
384 | . 'THEN ' . $this->f_right . '+' . ($target_right - 1 - $node_right) . ' ' |
---|
385 | . 'ELSE ' . $this->f_right . ' ' |
---|
386 | . 'END ' |
---|
387 | . 'WHERE (' . $this->f_left . ' BETWEEN ' . $node_left . ' AND ' . $target_right . ' ' |
---|
388 | . 'OR ' . $this->f_right . ' BETWEEN ' . $node_left . ' AND ' . $target_right . ')'; |
---|
389 | } |
---|
390 | |
---|
391 | $sql .= ' ' . $this->getCondition(); |
---|
392 | |
---|
393 | $this->con->execute($sql); |
---|
394 | } |
---|
395 | |
---|
396 | public function setNodePosition($nodeA, $nodeB, $position = 'after') |
---|
397 | { |
---|
398 | $nodeA = (integer) $nodeA; |
---|
399 | $nodeB = (integer) $nodeB; |
---|
400 | |
---|
401 | $rs = $this->getChildren(0, $nodeA); |
---|
402 | if ($rs->isEmpty()) { |
---|
403 | throw new Exception('Node does not exist.'); |
---|
404 | } |
---|
405 | $A_left = $rs->{$this->f_left}; |
---|
406 | $A_right = $rs->{$this->f_right}; |
---|
407 | $A_level = $rs->level; |
---|
408 | |
---|
409 | $rs = $this->getChildren(0, $nodeB); |
---|
410 | if ($rs->isEmpty()) { |
---|
411 | throw new Exception('Node does not exist.'); |
---|
412 | } |
---|
413 | $B_left = $rs->{$this->f_left}; |
---|
414 | $B_right = $rs->{$this->f_right}; |
---|
415 | $B_level = $rs->level; |
---|
416 | |
---|
417 | if ($A_level != $B_level) { |
---|
418 | throw new Exception('Cannot change position'); |
---|
419 | } |
---|
420 | |
---|
421 | $rs = $this->getParents($nodeA); |
---|
422 | $parentA = $rs->isEmpty() ? 0 : $rs->{$this->f_id}; |
---|
423 | $rs = $this->getParents($nodeB); |
---|
424 | $parentB = $rs->isEmpty() ? 0 : $rs->{$this->f_id}; |
---|
425 | |
---|
426 | if ($parentA != $parentB) { |
---|
427 | throw new Exception('Cannot change position'); |
---|
428 | } |
---|
429 | |
---|
430 | if ($position == 'before') { |
---|
431 | if ($A_left > $B_left) { |
---|
432 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
433 | . $this->f_right . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_right . ' - (' . ($A_left - $B_left) . ') ' |
---|
434 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $B_left . ' AND ' . ($A_left - 1) . ' THEN ' . $this->f_right . ' + ' . ($A_right - $A_left + 1) . ' ELSE ' . $this->f_right . ' END, ' |
---|
435 | . $this->f_left . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_left . ' - (' . ($A_left - $B_left) . ') ' |
---|
436 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . $B_left . ' AND ' . ($A_left - 1) . ' THEN ' . $this->f_left . ' + ' . ($A_right - $A_left + 1) . ' ELSE ' . $this->f_left . ' END ' |
---|
437 | . 'WHERE ' . $this->f_left . ' BETWEEN ' . $B_left . ' AND ' . $A_right; |
---|
438 | } else { |
---|
439 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
440 | . $this->f_right . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_right . ' + ' . (($B_left - $A_left) - ($A_right - $A_left + 1)) . ' ' |
---|
441 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($A_right + 1) . ' AND ' . ($B_left - 1) . ' THEN ' . $this->f_right . ' - (' . (($A_right - $A_left + 1)) . ') ELSE ' . $this->f_right . ' END, ' |
---|
442 | . $this->f_left . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_left . ' + ' . (($B_left - $A_left) - ($A_right - $A_left + 1)) . ' ' |
---|
443 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($A_right + 1) . ' AND ' . ($B_left - 1) . ' THEN ' . $this->f_left . ' - (' . ($A_right - $A_left + 1) . ') ELSE ' . $this->f_left . ' END ' |
---|
444 | . 'WHERE ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . ($B_left - 1); |
---|
445 | } |
---|
446 | } else { |
---|
447 | if ($A_left > $B_left) { |
---|
448 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
449 | . $this->f_right . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_right . ' - (' . ($A_left - $B_left - ($B_right - $B_left + 1)) . ') ' |
---|
450 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($B_right + 1) . ' AND ' . ($A_left - 1) . ' THEN ' . $this->f_right . ' + ' . ($A_right - $A_left + 1) . ' ELSE ' . $this->f_right . ' END, ' |
---|
451 | . $this->f_left . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_left . ' - (' . ($A_left - $B_left - ($B_right - $B_left + 1)) . ') ' |
---|
452 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($B_right + 1) . ' AND ' . ($A_left - 1) . ' THEN ' . $this->f_left . ' + ' . ($A_right - $A_left + 1) . ' ELSE ' . $this->f_left . ' END ' |
---|
453 | . 'WHERE ' . $this->f_left . ' BETWEEN ' . ($B_right + 1) . ' AND ' . $A_right; |
---|
454 | } else { |
---|
455 | $sql = 'UPDATE ' . $this->table . ' SET ' |
---|
456 | . $this->f_right . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_right . ' + ' . ($B_right - $A_right) . ' ' |
---|
457 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($A_right + 1) . ' AND ' . $B_right . ' THEN ' . $this->f_right . ' - (' . (($A_right - $A_left + 1)) . ') ELSE ' . $this->f_right . ' END, ' |
---|
458 | . $this->f_left . ' = CASE WHEN ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $A_right . ' THEN ' . $this->f_left . ' + ' . ($B_right - $A_right) . ' ' |
---|
459 | . 'WHEN ' . $this->f_left . ' BETWEEN ' . ($A_right + 1) . ' AND ' . $B_right . ' THEN ' . $this->f_left . ' - (' . ($A_right - $A_left + 1) . ') ELSE ' . $this->f_left . ' END ' |
---|
460 | . 'WHERE ' . $this->f_left . ' BETWEEN ' . $A_left . ' AND ' . $B_right; |
---|
461 | } |
---|
462 | } |
---|
463 | |
---|
464 | $sql .= $this->getCondition(); |
---|
465 | $this->con->execute($sql); |
---|
466 | } |
---|
467 | |
---|
468 | protected function getCondition($start = 'AND', $prefix = '') |
---|
469 | { |
---|
470 | if (empty($this->add_condition)) { |
---|
471 | return ''; |
---|
472 | } |
---|
473 | |
---|
474 | $w = []; |
---|
475 | foreach ($this->add_condition as $c => $n) { |
---|
476 | $w[] = $prefix . $c . ' = ' . $n; |
---|
477 | } |
---|
478 | return ' ' . $start . ' ' . implode(' AND ', $w) . ' '; |
---|
479 | } |
---|
480 | } |
---|