Rev 29 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 27 | PointedEar | 1 | <?php |
| 2 | |||
| 3 | require_once 'lib/AbstractModel.php'; |
||
| 4 | |||
| 5 | /** |
||
| 6 | * Generic database table model class |
||
| 7 | * |
||
| 8 | * @author Thomas Lahn |
||
| 9 | * @property-read int $lastInsertId |
||
| 10 | * ID of the last inserted row, or the last value from |
||
| 11 | a sequence object, depending on the underlying driver. |
||
| 12 | */ |
||
| 13 | abstract class Table extends AbstractModel |
||
| 14 | { |
||
| 15 | /** |
||
| 16 | * Name of the table |
||
| 17 | */ |
||
| 18 | protected $_name = ''; |
||
| 19 | |||
| 20 | /** |
||
| 21 | * Database of the table |
||
| 22 | * @var Database |
||
| 23 | */ |
||
| 24 | protected $_database; |
||
| 25 | |||
| 26 | protected $_id = 'id'; |
||
| 27 | |||
| 28 | public function __construct() |
||
| 29 | { |
||
| 30 | $this->_database = Application::getInstance()->getDefaultDatabase(); |
||
| 31 | } |
||
| 32 | |||
| 33 | /** |
||
| 34 | * Returns the database for the table |
||
| 35 | * @return Database |
||
| 36 | */ |
||
| 37 | public function getDatabase() |
||
| 38 | { |
||
| 39 | return $this->_database; |
||
| 40 | } |
||
| 41 | |||
| 42 | /** |
||
| 43 | * Initiates a transaction |
||
| 44 | * |
||
| 45 | * @return bool |
||
| 46 | * @see Database::beginTransaction() |
||
| 47 | */ |
||
| 48 | public function beginTransaction() |
||
| 49 | { |
||
| 50 | return $this->_database->beginTransaction(); |
||
| 51 | } |
||
| 52 | |||
| 53 | /** |
||
| 54 | * Rolls back a transaction |
||
| 55 | * |
||
| 56 | * @return bool |
||
| 57 | * @see Database::rollBack() |
||
| 58 | */ |
||
| 59 | public function rollBack() |
||
| 60 | { |
||
| 61 | return $this->_database->rollBack(); |
||
| 62 | } |
||
| 63 | |||
| 64 | /** |
||
| 65 | * Commits a transaction |
||
| 66 | * |
||
| 67 | * @return bool |
||
| 68 | * @see Database::commit() |
||
| 69 | */ |
||
| 70 | public function commit() |
||
| 71 | { |
||
| 72 | return $this->_database->commit(); |
||
| 73 | } |
||
| 74 | |||
| 75 | /** |
||
| 76 | * Retrieves all rows from the table |
||
| 77 | * |
||
| 78 | * @return array |
||
| 79 | * @see Database::fetchAll() |
||
| 80 | */ |
||
| 81 | public function fetchAll($fetch_style = null, $column_index = null, array $ctor_args = null) |
||
| 82 | { |
||
| 83 | return $this->_database->fetchAll($this->_name, $fetch_style, $column_index, $ctor_args); |
||
| 84 | } |
||
| 85 | |||
| 86 | /** |
||
| 87 | * Selects data from one or more tables |
||
| 88 | * |
||
| 89 | * @return array |
||
| 90 | * @see Database::select() |
||
| 91 | */ |
||
| 92 | public function select($columns = null, $where = null, $order = null, $limit = null) |
||
| 93 | { |
||
| 94 | return $this->_database->select($this->_name, $columns, $where, $order, $limit); |
||
| 95 | } |
||
| 96 | |||
| 97 | /** |
||
| 98 | * Updates records in one or more tables |
||
| 99 | * |
||
| 100 | * @return bool |
||
| 101 | * @see Database::update() |
||
| 102 | */ |
||
| 103 | public function update($data, $condition) |
||
| 104 | { |
||
| 105 | return $this->_database->update($this->_name, $data, $condition); |
||
| 106 | } |
||
| 107 | |||
| 108 | /** |
||
| 109 | * Inserts a record into the table |
||
| 110 | * |
||
| 111 | * @return bool |
||
| 112 | * @see Database::insert() |
||
| 113 | */ |
||
| 114 | public function insert($data, $cols = null) |
||
| 115 | { |
||
| 116 | return $this->_database->insert($this->_name, $data, $cols); |
||
| 117 | } |
||
| 118 | |||
| 119 | /** |
||
| 120 | * Returns the ID of the last inserted row, or the last value from |
||
| 121 | * a sequence object, depending on the underlying driver. |
||
| 122 | * |
||
| 123 | * @return int |
||
| 124 | * @see Database::getLastInsertId() |
||
| 125 | */ |
||
| 126 | public function getLastInsertId() |
||
| 127 | { |
||
| 128 | return $this->_database->lastInsertId; |
||
| 129 | } |
||
| 130 | |||
| 131 | /** |
||
| 132 | * Delete a record from the table |
||
| 133 | * |
||
| 134 | * @param int $id |
||
| 135 | * ID of the record to delete. May be <code>null</code>, |
||
| 136 | * in which case <var>$condition</var> must specify |
||
| 137 | * the records to be deleted. |
||
| 138 | * @param array[optional] $condition |
||
| 139 | * Conditions that must be met for a record to be deleted. |
||
| 140 | * Ignored if <var>$id</var> is not <code>null</code>. |
||
| 141 | * @return bool |
||
| 142 | * @throws InvalidArgumentException if both <var>$id</var> and |
||
| 143 | * <var>$condition</var> are <code>null</code>. |
||
| 144 | * @see Database::delete() |
||
| 145 | */ |
||
| 146 | public function delete($id, array $condition = null) |
||
| 147 | { |
||
| 148 | if (!is_null($id)) |
||
| 149 | { |
||
| 150 | $condition = array($this->_id => $id); |
||
| 151 | } |
||
| 152 | else if (is_null($condition)) |
||
| 153 | { |
||
| 154 | throw new InvalidArgumentException( |
||
| 155 | '$id and $condition cannot both be null'); |
||
| 156 | } |
||
| 157 | |||
| 158 | return $this->_database->delete($this->_name, $condition); |
||
| 159 | } |
||
| 160 | |||
| 161 | /** |
||
| 162 | * Inserts a row into the table or updates an existing one |
||
| 163 | * |
||
| 164 | * @param array $data |
||
| 165 | * Associative array of column-value pairs to be updated/inserted |
||
| 166 | * @param string|array $condition |
||
| 167 | * If there are no records matching this condition, a row will be inserted; |
||
| 168 | * otherwise matching records are updated |
||
| 169 | * @return bool |
||
| 170 | * @see Table::update() |
||
| 171 | * @see Table::insert() |
||
| 172 | */ |
||
| 173 | public function updateOrInsert($data, array $condition = null) |
||
| 174 | { |
||
| 175 | if ($this->select($this->_id, $condition)) |
||
| 176 | { |
||
| 177 | return $this->update($data, $condition); |
||
| 178 | } |
||
| 179 | |||
| 180 | return $this->insert($data); |
||
| 181 | } |
||
| 182 | |||
| 183 | /** |
||
| 184 | * Finds a record by ID |
||
| 185 | * |
||
| 186 | * @param mixed $id |
||
| 187 | */ |
||
| 188 | public function find($id) |
||
| 189 | { |
||
| 190 | /* DEBUG */ |
||
| 191 | if (defined('DEBUG') && DEBUG > 0) |
||
| 192 | { |
||
| 193 | debug($id); |
||
| 194 | } |
||
| 195 | |||
| 196 | return $this->select(null, array($this->_id => $id)); |
||
| 197 | } |
||
| 198 | } |