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