src/Model/Post.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model;
  23
  24 use BadMethodCallException;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\System;
  27 use Friendica\Database\Database;
  28 use Friendica\Database\DBA;
  29 use Friendica\Database\DBStructure;
  30 use Friendica\Protocol\Activity;
  31
  32 class Post
  33 {
  34         /**
  35          * Insert a new post entry
  36          *
  37          * @param integer $uri_id
  38          * @param array   $fields
  39          * @return int    ID of inserted post
  40          * @throws \Exception
  41          */
  42         public static function insert(int $uri_id, array $data = [])
  43         {
  44                 if (empty($uri_id)) {
  45                         throw new BadMethodCallException('Empty URI_id');
  46                 }
  47
  48                 $fields = DBStructure::getFieldsForTable('post', $data);
  49
  50                 // Additionally assign the key fields
  51                 $fields['uri-id'] = $uri_id;
  52
  53                 if (!DBA::insert('post', $fields, Database::INSERT_IGNORE)) {
  54                         return 0;
  55                 }
  56
  57                 return DBA::lastInsertId();
  58         }
  59
  60         /**
  61          * Fetch a single post row
  62          *
  63          * @param mixed $stmt statement object
  64          * @return array|false current row or false
  65          * @throws \Exception
  66          */
  67         public static function fetch($stmt)
  68         {
  69                 $row = DBA::fetch($stmt);
  70
  71                 if (!is_array($row)) {
  72                         return $row;
  73                 }
  74
  75                 if (array_key_exists('verb', $row)) {
  76                         if (in_array($row['verb'], Item::ACTIVITIES)) {
  77                                 if (array_key_exists('title', $row)) {
  78                                         $row['title'] = '';
  79                                 }
  80                                 if (array_key_exists('body', $row)) {
  81                                         $row['body'] = $row['verb'];
  82                                 }
  83                                 if (array_key_exists('object', $row)) {
  84                                         $row['object'] = '';
  85                                 }
  86                                 if (array_key_exists('object-type', $row)) {
  87                                         $row['object-type'] = Activity\ObjectType::NOTE;
  88                                 }
  89                         } elseif (in_array($row['verb'], ['', Activity::POST, Activity::SHARE])) {
  90                                 // Posts don't have a target - but having tags or files.
  91                                 if (array_key_exists('target', $row)) {
  92                                         $row['target'] = '';
  93                                 }
  94                         }
  95                 }
  96
  97                 if (array_key_exists('extid', $row) && is_null($row['extid'])) {
  98                         $row['extid'] = '';
  99                 }
 100
 101                 return $row;
 102         }
 103
 104         /**
 105          * Fills an array with data from an post query
 106          *
 107          * @param object $stmt statement object
 108          * @param bool   $do_close
 109          * @return array Data array
 110          */
 111         public static function toArray($stmt, $do_close = true) {
 112                 if (is_bool($stmt)) {
 113                         return $stmt;
 114                 }
 115
 116                 $data = [];
 117                 while ($row = self::fetch($stmt)) {
 118                         $data[] = $row;
 119                 }
 120                 if ($do_close) {
 121                         DBA::close($stmt);
 122                 }
 123                 return $data;
 124         }
 125
 126         /**
 127          * Check if post-user-view records exists
 128          *
 129          * @param array $condition array of fields for condition
 130          *
 131          * @return boolean Are there rows for that condition?
 132          * @throws \Exception
 133          */
 134         public static function exists($condition) {
 135                 return DBA::exists('post-user-view', $condition);
 136         }
 137
 138         /**
 139          * Counts the post-user-view records satisfying the provided condition
 140          *
 141          * @param array        $condition array of fields for condition
 142          * @param array        $params    Array of several parameters
 143          *
 144          * @return int
 145          *
 146          * Example:
 147          * $condition = ["uid" => 1, "network" => 'dspr'];
 148          * or:
 149          * $condition = ["`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr'];
 150          *
 151          * $count = Post::count($condition);
 152          * @throws \Exception
 153          */
 154         public static function count(array $condition = [], array $params = [])
 155         {
 156                 return DBA::count('post-user-view', $condition, $params);
 157         }
 158
 159         /**
 160          * Counts the post-thread-user-view records satisfying the provided condition
 161          *
 162          * @param array        $condition array of fields for condition
 163          * @param array        $params    Array of several parameters
 164          *
 165          * @return int
 166          *
 167          * Example:
 168          * $condition = ["uid" => 1, "network" => 'dspr'];
 169          * or:
 170          * $condition = ["`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr'];
 171          *
 172          * $count = Post::count($condition);
 173          * @throws \Exception
 174          */
 175         public static function countThread(array $condition = [], array $params = [])
 176         {
 177                 return DBA::count('post-thread-user-view', $condition, $params);
 178         }
 179
 180         /**
 181          * Counts the post-view records satisfying the provided condition
 182          *
 183          * @param array        $condition array of fields for condition
 184          * @param array        $params    Array of several parameters
 185          *
 186          * @return int
 187          *
 188          * Example:
 189          * $condition = ["network" => 'dspr'];
 190          * or:
 191          * $condition = ["`network` IN (?, ?)", 1, 'dfrn', 'dspr'];
 192          *
 193          * $count = Post::count($condition);
 194          * @throws \Exception
 195          */
 196         public static function countPosts(array $condition = [], array $params = [])
 197         {
 198                 return DBA::count('post-view', $condition, $params);
 199         }
 200
 201         /**
 202          * Retrieve a single record from the post-user-view view and returns it in an associative array
 203          *
 204          * @param array $fields
 205          * @param array $condition
 206          * @param array $params
 207          * @param bool  $user_mode true = post-user-view, false = post-view
 208          * @return bool|array
 209          * @throws \Exception
 210          * @see   DBA::select
 211          */
 212         public static function selectFirst(array $fields = [], array $condition = [], $params = [])
 213         {
 214                 $params['limit'] = 1;
 215
 216                 $result = self::select($fields, $condition, $params);
 217
 218                 if (is_bool($result)) {
 219                         return $result;
 220                 } else {
 221                         $row = self::fetch($result);
 222                         DBA::close($result);
 223                         return $row;
 224                 }
 225         }
 226
 227         /**
 228          * Retrieve a single record from the post-view view and returns it in an associative array
 229          *
 230          * @param array $fields
 231          * @param array $condition
 232          * @param array $params
 233          * @return bool|array
 234          * @throws \Exception
 235          * @see   DBA::select
 236          */
 237         public static function selectFirstPost(array $fields = [], array $condition = [], $params = [])
 238         {
 239                 $params['limit'] = 1;
 240
 241                 $result = self::selectPosts($fields, $condition, $params);
 242
 243                 if (is_bool($result)) {
 244                         return $result;
 245                 } else {
 246                         $row = self::fetch($result);
 247                         DBA::close($result);
 248                         return $row;
 249                 }
 250         }
 251
 252         /**
 253          * Retrieve a single record from the post-thread-user-view view and returns it in an associative array
 254          *
 255          * @param array $fields
 256          * @param array $condition
 257          * @param array $params
 258          * @return bool|array
 259          * @throws \Exception
 260          * @see   DBA::select
 261          */
 262         public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
 263         {
 264                 $params['limit'] = 1;
 265
 266                 $result = self::selectThread($fields, $condition, $params);
 267
 268                 if (is_bool($result)) {
 269                         return $result;
 270                 } else {
 271                         $row = self::fetch($result);
 272                         DBA::close($result);
 273                         return $row;
 274                 }
 275         }
 276
 277         /**
 278          * Select rows from the post-user-view view and returns them as an array
 279          *
 280          * @param array $selected  Array of selected fields, empty for all
 281          * @param array $condition Array of fields for condition
 282          * @param array $params    Array of several parameters
 283          *
 284          * @return array
 285          * @throws \Exception
 286          */
 287         public static function selectToArray(array $fields = [], array $condition = [], $params = [])
 288         {
 289                 $result = self::select($fields, $condition, $params);
 290
 291                 if (is_bool($result)) {
 292                         return [];
 293                 }
 294
 295                 $data = [];
 296                 while ($row = self::fetch($result)) {
 297                         $data[] = $row;
 298                 }
 299                 DBA::close($result);
 300
 301                 return $data;
 302         }
 303
 304         /**
 305          * Select rows from the given view
 306          *
 307          * @param string $view      View (post-user-view or post-thread-user-view)
 308          * @param array  $selected  Array of selected fields, empty for all
 309          * @param array  $condition Array of fields for condition
 310          * @param array  $params    Array of several parameters
 311          *
 312          * @return boolean|object
 313          * @throws \Exception
 314          */
 315         private static function selectView(string $view, array $selected = [], array $condition = [], $params = [])
 316         {
 317                 if (empty($selected)) {
 318                         $selected = array_merge(Item::DISPLAY_FIELDLIST, Item::ITEM_FIELDLIST);
 319
 320                         if ($view == 'post-thread-user-view') {
 321                                 $selected = array_merge($selected, ['ignored']);
 322                         }
 323                 }
 324
 325                 $selected = array_unique($selected);
 326
 327                 return DBA::select($view, $selected, $condition, $params);
 328         }
 329
 330         /**
 331          * Select rows from the post-user-view view
 332          *
 333          * @param array $selected  Array of selected fields, empty for all
 334          * @param array $condition Array of fields for condition
 335          * @param array $params    Array of several parameters
 336          *
 337          * @return boolean|object
 338          * @throws \Exception
 339          */
 340         public static function select(array $selected = [], array $condition = [], $params = [])
 341         {
 342                 return self::selectView('post-user-view', $selected, $condition, $params);
 343         }
 344
 345         /**
 346          * Select rows from the post-view view
 347          *
 348          * @param array $selected  Array of selected fields, empty for all
 349          * @param array $condition Array of fields for condition
 350          * @param array $params    Array of several parameters
 351          *
 352          * @return boolean|object
 353          * @throws \Exception
 354          */
 355         public static function selectPosts(array $selected = [], array $condition = [], $params = [])
 356         {
 357                 return self::selectView('post-view', $selected, $condition, $params);
 358         }
 359
 360         /**
 361          * Select rows from the post-thread-user-view view
 362          *
 363          * @param array $selected  Array of selected fields, empty for all
 364          * @param array $condition Array of fields for condition
 365          * @param array $params    Array of several parameters
 366          *
 367          * @return boolean|object
 368          * @throws \Exception
 369          */
 370         public static function selectThread(array $selected = [], array $condition = [], $params = [])
 371         {
 372                 return self::selectView('post-thread-user-view', $selected, $condition, $params);
 373         }
 374
 375         /**
 376          * Select rows from the given view for a given user
 377          *
 378          * @param string  $view      View (post-user-view or post-thread-user-view)
 379          * @param integer $uid       User ID
 380          * @param array   $selected  Array of selected fields, empty for all
 381          * @param array   $condition Array of fields for condition
 382          * @param array   $params    Array of several parameters
 383          *
 384          * @return boolean|object
 385          * @throws \Exception
 386          */
 387         private static function selectViewForUser(string $view, $uid, array $selected = [], array $condition = [], $params = [])
 388         {
 389                 if (empty($selected)) {
 390                         $selected = Item::DISPLAY_FIELDLIST;
 391                 }
 392
 393                 $condition = DBA::mergeConditions($condition,
 394                         ["`visible` AND NOT `deleted`
 395                         AND NOT `author-blocked` AND NOT `owner-blocked`
 396                         AND (NOT `causer-blocked` OR `causer-id` = ? OR `causer-id` IS NULL) AND NOT `contact-blocked`
 397                         AND ((NOT `contact-readonly` AND NOT `contact-pending` AND (`contact-rel` IN (?, ?)))
 398                                 OR `self` OR `gravity` != ? OR `contact-uid` = ?)
 399                         AND NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `uid` = ? AND `uri-id` = `" . $view . "`.`uri-id` AND `hidden`)
 400                         AND NOT EXISTS (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `author-id` AND `blocked`)
 401                         AND NOT EXISTS (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `owner-id` AND `blocked`)
 402                         AND NOT EXISTS (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `author-id` AND `ignored` AND `gravity` = ?)
 403                         AND NOT EXISTS (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `owner-id` AND `ignored` AND `gravity` = ?)",
 404                         0, Contact::SHARING, Contact::FRIEND, GRAVITY_PARENT, 0, $uid, $uid, $uid, $uid, GRAVITY_PARENT, $uid, GRAVITY_PARENT]);
 405
 406                 $select_string = implode(', ', array_map([DBA::class, 'quoteIdentifier'], $selected));
 407
 408                 $condition_string = DBA::buildCondition($condition);
 409                 $param_string = DBA::buildParameter($params);
 410
 411                 $sql = "SELECT " . $select_string . " FROM `" . $view . "` " . $condition_string . $param_string;
 412                 $sql = DBA::cleanQuery($sql);
 413
 414                 return DBA::p($sql, $condition);
 415         }
 416
 417         /**
 418          * Select rows from the post-user-view view for a given user
 419          *
 420          * @param integer $uid       User ID
 421          * @param array   $selected  Array of selected fields, empty for all
 422          * @param array   $condition Array of fields for condition
 423          * @param array   $params    Array of several parameters
 424          *
 425          * @return boolean|object
 426          * @throws \Exception
 427          */
 428         public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
 429         {
 430                 return self::selectViewForUser('post-user-view', $uid, $selected, $condition, $params);
 431         }
 432
 433         /**
 434          * Select rows from the post-view view for a given user
 435          *
 436          * @param integer $uid       User ID
 437          * @param array   $selected  Array of selected fields, empty for all
 438          * @param array   $condition Array of fields for condition
 439          * @param array   $params    Array of several parameters
 440          *
 441          * @return boolean|object
 442          * @throws \Exception
 443          */
 444         public static function selectPostsForUser($uid, array $selected = [], array $condition = [], $params = [])
 445         {
 446                 return self::selectViewForUser('post-view', $uid, $selected, $condition, $params);
 447         }
 448
 449         /**
 450          * Select rows from the post-thread-user-view view for a given user
 451          *
 452          * @param integer $uid       User ID
 453          * @param array   $selected  Array of selected fields, empty for all
 454          * @param array   $condition Array of fields for condition
 455          * @param array   $params    Array of several parameters
 456          *
 457          * @return boolean|object
 458          * @throws \Exception
 459          */
 460         public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
 461         {
 462                 return self::selectViewForUser('post-thread-user-view', $uid, $selected, $condition, $params);
 463         }
 464
 465         /**
 466          * Retrieve a single record from the post-user-view view for a given user and returns it in an associative array
 467          *
 468          * @param integer $uid User ID
 469          * @param array   $selected
 470          * @param array   $condition
 471          * @param array   $params
 472          * @return bool|array
 473          * @throws \Exception
 474          * @see   DBA::select
 475          */
 476         public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
 477         {
 478                 $params['limit'] = 1;
 479
 480                 $result = self::selectForUser($uid, $selected, $condition, $params);
 481
 482                 if (is_bool($result)) {
 483                         return $result;
 484                 } else {
 485                         $row = self::fetch($result);
 486                         DBA::close($result);
 487                         return $row;
 488                 }
 489         }
 490
 491         /**
 492          * Select pinned rows from the post-thread-user table for a given user
 493          *
 494          * @param integer $uid       User ID
 495          * @param array   $selected  Array of selected fields, empty for all
 496          * @param array   $condition Array of fields for condition
 497          * @param array   $params    Array of several parameters
 498          *
 499          * @return boolean|object
 500          * @throws \Exception
 501          */
 502         public static function selectPinned(int $uid, array $selected = [], array $condition = [], $params = [])
 503         {
 504                 $postthreaduser = DBA::select('post-thread-user', ['uri-id'], ['uid' => $uid, 'pinned' => true]);
 505                 if (!DBA::isResult($postthreaduser)) {
 506                         return $postthreaduser;
 507                 }
 508
 509                 $pinned = [];
 510                 while ($useritem = DBA::fetch($postthreaduser)) {
 511                         $pinned[] = $useritem['uri-id'];
 512                 }
 513                 DBA::close($postthreaduser);
 514
 515                 if (empty($pinned)) {
 516                         return [];
 517                 }
 518
 519                 $condition = DBA::mergeConditions(['uri-id' => $pinned, 'uid' => $uid, 'gravity' => GRAVITY_PARENT], $condition);
 520
 521                 return self::selectForUser($uid, $selected, $condition, $params);
 522         }
 523
 524         /**
 525          * Update existing post entries
 526          *
 527          * @param array $fields    The fields that are to be changed
 528          * @param array $condition The condition for finding the item entries
 529          *
 530          * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
 531          *
 532          * @return integer|boolean number of affected rows - or "false" if there was an error
 533          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 534          */
 535         public static function update(array $fields, array $condition)
 536         {
 537                 $affected = 0;
 538
 539                 Logger::info('Start Update', ['fields' => $fields, 'condition' => $condition, 'uid' => local_user(),'callstack' => System::callstack(10)]);
 540
 541                 // Don't allow changes to fields that are responsible for the relation between the records
 542                 unset($fields['id']);
 543                 unset($fields['parent']);
 544                 unset($fields['uid']);
 545                 unset($fields['uri']);
 546                 unset($fields['uri-id']);
 547                 unset($fields['thr-parent']);
 548                 unset($fields['thr-parent-id']);
 549                 unset($fields['parent-uri']);
 550                 unset($fields['parent-uri-id']);
 551
 552                 $thread_condition = DBA::mergeConditions($condition, ['gravity' => GRAVITY_PARENT]);
 553
 554                 // To ensure the data integrity we do it in an transaction
 555                 DBA::transaction();
 556
 557                 $update_fields = DBStructure::getFieldsForTable('post-user', $fields);
 558                 if (!empty($update_fields)) {
 559                         $affected_count = 0;
 560                         $posts = DBA::select('post-user-view', ['post-user-id'], $condition);
 561                         while ($rows = DBA::toArray($posts, false, 100)) {
 562                                 $puids = array_column($rows, 'post-user-id');
 563                                 if (!DBA::update('post-user', $update_fields, ['id' => $puids])) {
 564                                         DBA::rollback();
 565                                         Logger::notice('Updating post-user failed', ['fields' => $update_fields, 'condition' => $condition]);
 566                                         return false;
 567                                 }
 568                                 $affected_count += DBA::affectedRows();
 569                         }
 570                         DBA::close($posts);
 571                         $affected = $affected_count;
 572                 }
 573
 574                 $update_fields = DBStructure::getFieldsForTable('post-content', $fields);
 575                 if (!empty($update_fields)) {
 576                         $affected_count = 0;
 577                         $posts = DBA::select('post-user-view', ['uri-id'], $condition, ['group_by' => ['uri-id']]);
 578                         while ($rows = DBA::toArray($posts, false, 100)) {
 579                                 $uriids = array_column($rows, 'uri-id');
 580                                 if (!DBA::update('post-content', $update_fields, ['uri-id' => $uriids])) {
 581                                         DBA::rollback();
 582                                         Logger::notice('Updating post-content failed', ['fields' => $update_fields, 'condition' => $condition]);
 583                                         return false;
 584                                 }
 585                                 $affected_count += DBA::affectedRows();
 586                         }
 587                         DBA::close($posts);
 588                         $affected = max($affected, $affected_count);
 589                 }
 590
 591                 $update_fields = DBStructure::getFieldsForTable('post', $fields);
 592                 if (!empty($update_fields)) {
 593                         $affected_count = 0;
 594                         $posts = DBA::select('post-user-view', ['uri-id'], $condition, ['group_by' => ['uri-id']]);
 595                         while ($rows = DBA::toArray($posts, false, 100)) {
 596                                 $uriids = array_column($rows, 'uri-id');
 597                                 if (!DBA::update('post', $update_fields, ['uri-id' => $uriids])) {
 598                                         DBA::rollback();
 599                                         Logger::notice('Updating post failed', ['fields' => $update_fields, 'condition' => $condition]);
 600                                         return false;
 601                                 }
 602                                 $affected_count += DBA::affectedRows();
 603                         }
 604                         DBA::close($posts);
 605                         $affected = max($affected, $affected_count);
 606                 }
 607
 608                 $update_fields = Post\DeliveryData::extractFields($fields);
 609                 if (!empty($update_fields)) {
 610                         $affected_count = 0;
 611                         $posts = DBA::select('post-user-view', ['uri-id'], $condition, ['group_by' => ['uri-id']]);
 612                         while ($rows = DBA::toArray($posts, false, 100)) {
 613                                 $uriids = array_column($rows, 'uri-id');
 614                                 if (!DBA::update('post-delivery-data', $update_fields, ['uri-id' => $uriids])) {
 615                                         DBA::rollback();
 616                                         Logger::notice('Updating post-delivery-data failed', ['fields' => $update_fields, 'condition' => $condition]);
 617                                         return false;
 618                                 }
 619                                 $affected_count += DBA::affectedRows();
 620                         }
 621                         DBA::close($posts);
 622                         $affected = max($affected, $affected_count);
 623                 }
 624
 625                 $update_fields = DBStructure::getFieldsForTable('post-thread', $fields);
 626                 if (!empty($update_fields)) {
 627                         $affected_count = 0;
 628                         $posts = DBA::select('post-user-view', ['uri-id'], $thread_condition, ['group_by' => ['uri-id']]);
 629                         while ($rows = DBA::toArray($posts, false, 100)) {
 630                                 $uriids = array_column($rows, 'uri-id');
 631                                 if (!DBA::update('post-thread', $update_fields, ['uri-id' => $uriids])) {
 632                                         DBA::rollback();
 633                                         Logger::notice('Updating post-thread failed', ['fields' => $update_fields, 'condition' => $condition]);
 634                                         return false;
 635                                 }
 636                                 $affected_count += DBA::affectedRows();
 637                         }
 638                         DBA::close($posts);
 639                         $affected = max($affected, $affected_count);
 640                 }
 641
 642                 $update_fields = DBStructure::getFieldsForTable('post-thread-user', $fields);
 643                 if (!empty($update_fields)) {
 644                         $affected_count = 0;
 645                         $posts = DBA::select('post-user-view', ['post-user-id'], $thread_condition);
 646                         while ($rows = DBA::toArray($posts, false, 100)) {
 647                                 $thread_puids = array_column($rows, 'post-user-id');
 648                                 if (!DBA::update('post-thread-user', $update_fields, ['post-user-id' => $thread_puids])) {
 649                                         DBA::rollback();
 650                                         Logger::notice('Updating post-thread-user failed', ['fields' => $update_fields, 'condition' => $condition]);
 651                                         return false;
 652                                 }
 653                                 $affected_count += DBA::affectedRows();
 654                         }
 655                         DBA::close($posts);
 656                         $affected = max($affected, $affected_count);
 657                 }
 658
 659                 DBA::commit();
 660
 661                 Logger::info('Updated posts', ['rows' => $affected]);
 662                 return $affected;
 663         }
 664
 665         /**
 666          * Delete a row from the post table
 667          *
 668          * @param array        $conditions Field condition(s)
 669          * @param array        $options
 670          *                           - cascade: If true we delete records in other tables that depend on the one we're deleting through
 671          *                           relations (default: true)
 672          *
 673          * @return boolean was the delete successful?
 674          * @throws \Exception
 675          */
 676         public static function delete(array $conditions, array $options = [])
 677         {
 678                 return DBA::delete('post', $conditions, $options);
 679         }
 680 }