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   1 <?php
   2 /**
   3  * A database wrapper for city sections
   4  *
   5  * @author              Roland Haeder <webmaster@shipsimu.org>
   6  * @version             0.0.0
   7  * @copyright   Copyright (c) 2015 City Developer Team
   8  * @license             GNU GPL 3.0 or any newer version
   9  * @link                http://www.shipsimu.org
  10  *
  11  * This program is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation, either version 3 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  23  */
  24 class CitySectionsDatabaseWrapper extends BaseDatabaseWrapper implements CitySectionsWrapper, Registerable {
  25         // Constants for database table names
  26         const DB_TABLE_CITY_SECTIONS = 'city_sections';
  27
  28         // Section id, an referenced city id and lot id
  29         const DB_COLUMN_SECTION_ID             = 'city_section_id';
  30         const DB_COLUMN_CITY_ID                = 'city_id';
  31         const DB_COLUMN_LOT_ID                 = 'lot_id';
  32
  33         // Section and sub type (e.g. residential, hut)
  34         const DB_COLUMN_SECTION_TYPE           = 'section_type';
  35         const DB_COLUMN_SECTION_SUB_TYPE       = 'section_sub_type';
  36
  37         // X-Y-Z position
  38         const DB_COLUMN_SECTION_POSITION_X     = 'section_position_x';
  39         const DB_COLUMN_SECTION_POSITION_Y     = 'section_position_y';
  40         const DB_COLUMN_SECTION_POSITION_Z     = 'section_position_z';
  41
  42         // Connected neigbouring sections
  43         const DB_COLUMN_SECTION_NEIGHBOUR_WEST_ID  = 'section_neighbour_west_id';
  44         const DB_COLUMN_SECTION_NEIGHBOUR_EAST_ID  = 'section_neighbour_east_id';
  45         const DB_COLUMN_SECTION_NEIGHBOUR_NORTH_ID = 'section_neighbour_north_id';
  46         const DB_COLUMN_SECTION_NEIGHBOUR_SOUTH_ID = 'section_neighbour_south_id';
  47         const DB_COLUMN_SECTION_NEIGHBOUR_UP_ID    = 'section_neighbour_up_id';
  48         const DB_COLUMN_SECTION_NEIGHBOUR_DOWN_ID  = 'section_neighbour_down_id';
  49
  50         // Other settings:
  51         // Reserved section (see documentation)
  52         const DB_COLUMN_SECTION_RESERVED       = 'section_reserved';
  53
  54         /**
  55          * Protected constructor
  56          *
  57          * @return      void
  58          */
  59         protected function __construct () {
  60                 // Call parent constructor
  61                 parent::__construct(__CLASS__);
  62         }
  63
  64         /**
  65          * Creates an instance of this database wrapper by a provided user class
  66          *
  67          * @return      $wrapperInstance        An instance of the created wrapper class
  68          */
  69         public static final function createCitySectionsDatabaseWrapper () {
  70                 // Get a new instance
  71                 $wrapperInstance = new CitySectionsDatabaseWrapper();
  72
  73                 // Set (primary!) table name
  74                 $wrapperInstance->setTableName(self::DB_TABLE_CITY_SECTIONS);
  75
  76                 // Return the instance
  77                 return $wrapperInstance;
  78         }
  79
  80         /**
  81          * Checks if the given city id is found in sections table
  82          *
  83          * @param       $cityId         City id to check
  84          * @return      $isFound        Whether the city id is found
  85          */
  86         public function ifCityHasSections ($cityId) {
  87                 // Get search instance
  88                 $searchInstance = ObjectFactory::createObjectByConfiguredName('search_criteria_class');
  89
  90                 // Search for 'city_id'
  91                 $searchInstance->addCriteria(self::DB_COLUMN_CITY_ID, $cityId);
  92
  93                 /*
  94                  * Only one entry is enough to find, else this query could run very\
  95                  * long on large maps.
  96                  */
  97                 $searchInstance->setLimit(1);
  98
  99                 // Execute it on database instance
 100                 $resultInstance = $this->doSelectByCriteria($searchInstance);
 101
 102                 // Check if there is one entry
 103                 $isFound = ($resultInstance->next() == 1);
 104
 105                 // Return result
 106                 return $isFound;
 107         }
 108
 109         /**
 110          * Expands the sections table with initial data for given city id
 111          *
 112          * @param       $cityId         City id to check
 113          * @return      $ids            Sections ids from initial expansion
 114          */
 115         public function doInitialCityExpansion ($cityId) {
 116                 // Make sure this city has no sections
 117                 assert(!$this->ifCityHasSections($cityId));
 118
 119                 // @TODO Unfinished
 120                 $this->partialStub('cityId=' . $cityId . ' - UNFINISHED!');
 121         }
 122 }
 123
 124 // [EOF]
 125 ?>