Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like ChannelQuery often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use ChannelQuery, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 82 | abstract class ChannelQuery extends ModelCriteria |
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| 83 | { |
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| 84 | protected $entityNotFoundExceptionClass = '\\Propel\\Runtime\\Exception\\EntityNotFoundException'; |
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| 85 | |||
| 86 | /** |
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| 87 | * Initializes internal state of \Jalle19\StatusManager\Database\Base\ChannelQuery object. |
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| 88 | * |
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| 89 | * @param string $dbName The database name |
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| 90 | * @param string $modelName The phpName of a model, e.g. 'Book' |
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| 91 | * @param string $modelAlias The alias for the model in this query, e.g. 'b' |
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| 92 | */ |
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| 93 | public function __construct($dbName = 'tvheadend_status_manager', $modelName = '\\Jalle19\\StatusManager\\Database\\Channel', $modelAlias = null) |
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| 94 | { |
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| 95 | parent::__construct($dbName, $modelName, $modelAlias); |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * Returns a new ChildChannelQuery object. |
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| 100 | * |
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| 101 | * @param string $modelAlias The alias of a model in the query |
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| 102 | * @param Criteria $criteria Optional Criteria to build the query from |
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| 103 | * |
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| 104 | * @return ChildChannelQuery |
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| 105 | */ |
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| 106 | public static function create($modelAlias = null, Criteria $criteria = null) |
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| 107 | { |
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| 108 | if ($criteria instanceof ChildChannelQuery) { |
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| 109 | return $criteria; |
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| 110 | } |
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| 111 | $query = new ChildChannelQuery(); |
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| 112 | if (null !== $modelAlias) { |
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| 113 | $query->setModelAlias($modelAlias); |
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| 114 | } |
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| 115 | if ($criteria instanceof Criteria) { |
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| 116 | $query->mergeWith($criteria); |
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| 117 | } |
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| 118 | |||
| 119 | return $query; |
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| 120 | } |
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| 121 | |||
| 122 | /** |
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| 123 | * Find object by primary key. |
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| 124 | * Propel uses the instance pool to skip the database if the object exists. |
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| 125 | * Go fast if the query is untouched. |
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| 126 | * |
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| 127 | * <code> |
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| 128 | * $obj = $c->findPk(12, $con); |
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| 129 | * </code> |
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| 130 | * |
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| 131 | * @param mixed $key Primary key to use for the query |
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| 132 | * @param ConnectionInterface $con an optional connection object |
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| 133 | * |
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| 134 | * @return ChildChannel|array|mixed the result, formatted by the current formatter |
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| 135 | */ |
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| 136 | public function findPk($key, ConnectionInterface $con = null) |
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| 137 | { |
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| 138 | if ($key === null) { |
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| 139 | return null; |
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| 140 | } |
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| 141 | if ((null !== ($obj = ChannelTableMap::getInstanceFromPool(null === $key || is_scalar($key) || is_callable([$key, '__toString']) ? (string) $key : $key))) && !$this->formatter) { |
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| 142 | // the object is already in the instance pool |
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| 143 | return $obj; |
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| 144 | } |
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| 145 | if ($con === null) { |
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| 146 | $con = Propel::getServiceContainer()->getReadConnection(ChannelTableMap::DATABASE_NAME); |
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| 147 | } |
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| 148 | $this->basePreSelect($con); |
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| 149 | if ($this->formatter || $this->modelAlias || $this->with || $this->select |
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| 150 | || $this->selectColumns || $this->asColumns || $this->selectModifiers |
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| 151 | || $this->map || $this->having || $this->joins) { |
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| 152 | return $this->findPkComplex($key, $con); |
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| 153 | } else { |
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| 154 | return $this->findPkSimple($key, $con); |
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| 155 | } |
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| 156 | } |
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| 157 | |||
| 158 | /** |
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| 159 | * Find object by primary key using raw SQL to go fast. |
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| 160 | * Bypass doSelect() and the object formatter by using generated code. |
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| 161 | * |
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| 162 | * @param mixed $key Primary key to use for the query |
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| 163 | * @param ConnectionInterface $con A connection object |
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| 164 | * |
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| 165 | * @throws \Propel\Runtime\Exception\PropelException |
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| 166 | * |
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| 167 | * @return ChildChannel A model object, or null if the key is not found |
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| 168 | */ |
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| 169 | protected function findPkSimple($key, ConnectionInterface $con) |
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| 170 | { |
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| 171 | $sql = 'SELECT id, instance_name, name FROM channel WHERE id = :p0'; |
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| 172 | try { |
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| 173 | $stmt = $con->prepare($sql); |
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| 174 | $stmt->bindValue(':p0', $key, PDO::PARAM_INT); |
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| 175 | $stmt->execute(); |
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| 176 | } catch (Exception $e) { |
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| 177 | Propel::log($e->getMessage(), Propel::LOG_ERR); |
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| 178 | throw new PropelException(sprintf('Unable to execute SELECT statement [%s]', $sql), 0, $e); |
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| 179 | } |
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| 180 | $obj = null; |
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| 181 | if ($row = $stmt->fetch(\PDO::FETCH_NUM)) { |
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| 182 | /** @var ChildChannel $obj */ |
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| 183 | $obj = new ChildChannel(); |
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| 184 | $obj->hydrate($row); |
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| 185 | ChannelTableMap::addInstanceToPool($obj, null === $key || is_scalar($key) || is_callable([$key, '__toString']) ? (string) $key : $key); |
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| 186 | } |
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| 187 | $stmt->closeCursor(); |
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| 188 | |||
| 189 | return $obj; |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * Find object by primary key. |
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| 194 | * |
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| 195 | * @param mixed $key Primary key to use for the query |
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| 196 | * @param ConnectionInterface $con A connection object |
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| 197 | * |
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| 198 | * @return ChildChannel|array|mixed the result, formatted by the current formatter |
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| 199 | */ |
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| 200 | protected function findPkComplex($key, ConnectionInterface $con) |
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| 201 | { |
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| 202 | // As the query uses a PK condition, no limit(1) is necessary. |
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| 203 | $criteria = $this->isKeepQuery() ? clone $this : $this; |
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| 204 | $dataFetcher = $criteria |
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| 205 | ->filterByPrimaryKey($key) |
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| 206 | ->doSelect($con); |
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| 207 | |||
| 208 | return $criteria->getFormatter()->init($criteria)->formatOne($dataFetcher); |
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| 209 | } |
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| 210 | |||
| 211 | /** |
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| 212 | * Find objects by primary key |
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| 213 | * <code> |
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| 214 | * $objs = $c->findPks(array(12, 56, 832), $con); |
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| 215 | * </code> |
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| 216 | * @param array $keys Primary keys to use for the query |
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| 217 | * @param ConnectionInterface $con an optional connection object |
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| 218 | * |
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| 219 | * @return ObjectCollection|array|mixed the list of results, formatted by the current formatter |
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| 220 | */ |
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| 221 | public function findPks($keys, ConnectionInterface $con = null) |
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| 222 | { |
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| 223 | if (null === $con) { |
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| 224 | $con = Propel::getServiceContainer()->getReadConnection($this->getDbName()); |
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| 225 | } |
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| 226 | $this->basePreSelect($con); |
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| 227 | $criteria = $this->isKeepQuery() ? clone $this : $this; |
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| 228 | $dataFetcher = $criteria |
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| 229 | ->filterByPrimaryKeys($keys) |
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| 230 | ->doSelect($con); |
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| 231 | |||
| 232 | return $criteria->getFormatter()->init($criteria)->format($dataFetcher); |
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| 233 | } |
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| 234 | |||
| 235 | /** |
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| 236 | * Filter the query by primary key |
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| 237 | * |
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| 238 | * @param mixed $key Primary key to use for the query |
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| 239 | * |
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| 240 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 241 | */ |
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| 242 | public function filterByPrimaryKey($key) |
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| 243 | { |
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| 244 | |||
| 245 | return $this->addUsingAlias(ChannelTableMap::COL_ID, $key, Criteria::EQUAL); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Filter the query by a list of primary keys |
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| 250 | * |
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| 251 | * @param array $keys The list of primary key to use for the query |
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| 252 | * |
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| 253 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 254 | */ |
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| 255 | public function filterByPrimaryKeys($keys) |
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| 256 | { |
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| 257 | |||
| 258 | return $this->addUsingAlias(ChannelTableMap::COL_ID, $keys, Criteria::IN); |
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| 259 | } |
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| 260 | |||
| 261 | /** |
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| 262 | * Filter the query on the id column |
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| 263 | * |
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| 264 | * Example usage: |
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| 265 | * <code> |
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| 266 | * $query->filterById(1234); // WHERE id = 1234 |
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| 267 | * $query->filterById(array(12, 34)); // WHERE id IN (12, 34) |
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| 268 | * $query->filterById(array('min' => 12)); // WHERE id > 12 |
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| 269 | * </code> |
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| 270 | * |
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| 271 | * @param mixed $id The value to use as filter. |
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| 272 | * Use scalar values for equality. |
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| 273 | * Use array values for in_array() equivalent. |
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| 274 | * Use associative array('min' => $minValue, 'max' => $maxValue) for intervals. |
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| 275 | * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL |
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| 276 | * |
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| 277 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 278 | */ |
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| 279 | public function filterById($id = null, $comparison = null) |
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| 280 | { |
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| 281 | if (is_array($id)) { |
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| 282 | $useMinMax = false; |
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| 283 | if (isset($id['min'])) { |
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| 284 | $this->addUsingAlias(ChannelTableMap::COL_ID, $id['min'], Criteria::GREATER_EQUAL); |
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| 285 | $useMinMax = true; |
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| 286 | } |
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| 287 | if (isset($id['max'])) { |
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| 288 | $this->addUsingAlias(ChannelTableMap::COL_ID, $id['max'], Criteria::LESS_EQUAL); |
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| 289 | $useMinMax = true; |
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| 290 | } |
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| 291 | if ($useMinMax) { |
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| 292 | return $this; |
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| 293 | } |
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| 294 | if (null === $comparison) { |
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| 295 | $comparison = Criteria::IN; |
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| 296 | } |
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| 297 | } |
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| 298 | |||
| 299 | return $this->addUsingAlias(ChannelTableMap::COL_ID, $id, $comparison); |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * Filter the query on the instance_name column |
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| 304 | * |
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| 305 | * Example usage: |
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| 306 | * <code> |
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| 307 | * $query->filterByInstanceName('fooValue'); // WHERE instance_name = 'fooValue' |
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| 308 | * $query->filterByInstanceName('%fooValue%'); // WHERE instance_name LIKE '%fooValue%' |
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| 309 | * </code> |
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| 310 | * |
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| 311 | * @param string $instanceName The value to use as filter. |
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| 312 | * Accepts wildcards (* and % trigger a LIKE) |
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| 313 | * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL |
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| 314 | * |
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| 315 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 316 | */ |
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| 317 | public function filterByInstanceName($instanceName = null, $comparison = null) |
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| 318 | { |
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| 319 | if (null === $comparison) { |
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| 320 | if (is_array($instanceName)) { |
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| 321 | $comparison = Criteria::IN; |
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| 322 | } elseif (preg_match('/[\%\*]/', $instanceName)) { |
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| 323 | $instanceName = str_replace('*', '%', $instanceName); |
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| 324 | $comparison = Criteria::LIKE; |
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| 325 | } |
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| 326 | } |
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| 327 | |||
| 328 | return $this->addUsingAlias(ChannelTableMap::COL_INSTANCE_NAME, $instanceName, $comparison); |
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| 329 | } |
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| 330 | |||
| 331 | /** |
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| 332 | * Filter the query on the name column |
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| 333 | * |
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| 334 | * Example usage: |
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| 335 | * <code> |
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| 336 | * $query->filterByName('fooValue'); // WHERE name = 'fooValue' |
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| 337 | * $query->filterByName('%fooValue%'); // WHERE name LIKE '%fooValue%' |
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| 338 | * </code> |
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| 339 | * |
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| 340 | * @param string $name The value to use as filter. |
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| 341 | * Accepts wildcards (* and % trigger a LIKE) |
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| 342 | * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL |
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| 343 | * |
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| 344 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 345 | */ |
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| 346 | public function filterByName($name = null, $comparison = null) |
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| 347 | { |
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| 348 | if (null === $comparison) { |
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| 349 | if (is_array($name)) { |
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| 350 | $comparison = Criteria::IN; |
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| 351 | } elseif (preg_match('/[\%\*]/', $name)) { |
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| 352 | $name = str_replace('*', '%', $name); |
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| 353 | $comparison = Criteria::LIKE; |
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| 354 | } |
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| 355 | } |
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| 356 | |||
| 357 | return $this->addUsingAlias(ChannelTableMap::COL_NAME, $name, $comparison); |
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| 358 | } |
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| 359 | |||
| 360 | /** |
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| 361 | * Filter the query by a related \Jalle19\StatusManager\Database\Instance object |
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| 362 | * |
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| 363 | * @param \Jalle19\StatusManager\Database\Instance|ObjectCollection $instance The related object(s) to use as filter |
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| 364 | * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL |
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| 365 | * |
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| 366 | * @throws \Propel\Runtime\Exception\PropelException |
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| 367 | * |
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| 368 | * @return ChildChannelQuery The current query, for fluid interface |
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| 369 | */ |
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| 370 | public function filterByInstance($instance, $comparison = null) |
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| 371 | { |
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| 372 | if ($instance instanceof \Jalle19\StatusManager\Database\Instance) { |
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| 373 | return $this |
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| 374 | ->addUsingAlias(ChannelTableMap::COL_INSTANCE_NAME, $instance->getName(), $comparison); |
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| 375 | } elseif ($instance instanceof ObjectCollection) { |
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| 376 | if (null === $comparison) { |
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| 377 | $comparison = Criteria::IN; |
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| 378 | } |
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| 379 | |||
| 380 | return $this |
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| 381 | ->addUsingAlias(ChannelTableMap::COL_INSTANCE_NAME, $instance->toKeyValue('PrimaryKey', 'Name'), $comparison); |
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| 382 | } else { |
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| 383 | throw new PropelException('filterByInstance() only accepts arguments of type \Jalle19\StatusManager\Database\Instance or Collection'); |
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| 384 | } |
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| 385 | } |
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| 386 | |||
| 387 | /** |
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| 388 | * Adds a JOIN clause to the query using the Instance relation |
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| 389 | * |
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| 390 | * @param string $relationAlias optional alias for the relation |
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| 391 | * @param string $joinType Accepted values are null, 'left join', 'right join', 'inner join' |
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| 392 | * |
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| 393 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 394 | */ |
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| 395 | public function joinInstance($relationAlias = null, $joinType = Criteria::INNER_JOIN) |
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| 396 | { |
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| 397 | $tableMap = $this->getTableMap(); |
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| 398 | $relationMap = $tableMap->getRelation('Instance'); |
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| 399 | |||
| 400 | // create a ModelJoin object for this join |
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| 401 | $join = new ModelJoin(); |
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| 402 | $join->setJoinType($joinType); |
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| 403 | $join->setRelationMap($relationMap, $this->useAliasInSQL ? $this->getModelAlias() : null, $relationAlias); |
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| 404 | if ($previousJoin = $this->getPreviousJoin()) { |
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| 405 | $join->setPreviousJoin($previousJoin); |
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| 406 | } |
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| 407 | |||
| 408 | // add the ModelJoin to the current object |
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| 409 | if ($relationAlias) { |
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| 410 | $this->addAlias($relationAlias, $relationMap->getRightTable()->getName()); |
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| 411 | $this->addJoinObject($join, $relationAlias); |
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| 412 | } else { |
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| 413 | $this->addJoinObject($join, 'Instance'); |
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| 414 | } |
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| 415 | |||
| 416 | return $this; |
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| 417 | } |
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| 418 | |||
| 419 | /** |
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| 420 | * Use the Instance relation Instance object |
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| 421 | * |
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| 422 | * @see useQuery() |
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| 423 | * |
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| 424 | * @param string $relationAlias optional alias for the relation, |
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| 425 | * to be used as main alias in the secondary query |
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| 426 | * @param string $joinType Accepted values are null, 'left join', 'right join', 'inner join' |
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| 427 | * |
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| 428 | * @return \Jalle19\StatusManager\Database\InstanceQuery A secondary query class using the current class as primary query |
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| 429 | */ |
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| 430 | public function useInstanceQuery($relationAlias = null, $joinType = Criteria::INNER_JOIN) |
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| 431 | { |
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| 432 | return $this |
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| 433 | ->joinInstance($relationAlias, $joinType) |
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| 434 | ->useQuery($relationAlias ? $relationAlias : 'Instance', '\Jalle19\StatusManager\Database\InstanceQuery'); |
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| 435 | } |
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| 436 | |||
| 437 | /** |
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| 438 | * Filter the query by a related \Jalle19\StatusManager\Database\Subscription object |
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| 439 | * |
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| 440 | * @param \Jalle19\StatusManager\Database\Subscription|ObjectCollection $subscription the related object to use as filter |
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| 441 | * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL |
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| 442 | * |
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| 443 | * @return ChildChannelQuery The current query, for fluid interface |
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| 444 | */ |
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| 445 | public function filterBySubscription($subscription, $comparison = null) |
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| 446 | { |
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| 447 | if ($subscription instanceof \Jalle19\StatusManager\Database\Subscription) { |
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| 448 | return $this |
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| 449 | ->addUsingAlias(ChannelTableMap::COL_ID, $subscription->getChannelId(), $comparison); |
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| 450 | } elseif ($subscription instanceof ObjectCollection) { |
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| 451 | return $this |
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| 452 | ->useSubscriptionQuery() |
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| 453 | ->filterByPrimaryKeys($subscription->getPrimaryKeys()) |
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| 454 | ->endUse(); |
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| 455 | } else { |
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| 456 | throw new PropelException('filterBySubscription() only accepts arguments of type \Jalle19\StatusManager\Database\Subscription or Collection'); |
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| 457 | } |
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| 458 | } |
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| 459 | |||
| 460 | /** |
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| 461 | * Adds a JOIN clause to the query using the Subscription relation |
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| 462 | * |
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| 463 | * @param string $relationAlias optional alias for the relation |
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| 464 | * @param string $joinType Accepted values are null, 'left join', 'right join', 'inner join' |
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| 465 | * |
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| 466 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 467 | */ |
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| 468 | public function joinSubscription($relationAlias = null, $joinType = Criteria::INNER_JOIN) |
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| 469 | { |
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| 470 | $tableMap = $this->getTableMap(); |
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| 471 | $relationMap = $tableMap->getRelation('Subscription'); |
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| 472 | |||
| 473 | // create a ModelJoin object for this join |
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| 474 | $join = new ModelJoin(); |
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| 475 | $join->setJoinType($joinType); |
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| 476 | $join->setRelationMap($relationMap, $this->useAliasInSQL ? $this->getModelAlias() : null, $relationAlias); |
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| 477 | if ($previousJoin = $this->getPreviousJoin()) { |
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| 478 | $join->setPreviousJoin($previousJoin); |
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| 479 | } |
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| 480 | |||
| 481 | // add the ModelJoin to the current object |
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| 482 | if ($relationAlias) { |
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| 483 | $this->addAlias($relationAlias, $relationMap->getRightTable()->getName()); |
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| 484 | $this->addJoinObject($join, $relationAlias); |
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| 485 | } else { |
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| 486 | $this->addJoinObject($join, 'Subscription'); |
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| 487 | } |
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| 488 | |||
| 489 | return $this; |
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| 490 | } |
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| 491 | |||
| 492 | /** |
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| 493 | * Use the Subscription relation Subscription object |
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| 494 | * |
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| 495 | * @see useQuery() |
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| 496 | * |
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| 497 | * @param string $relationAlias optional alias for the relation, |
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| 498 | * to be used as main alias in the secondary query |
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| 499 | * @param string $joinType Accepted values are null, 'left join', 'right join', 'inner join' |
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| 500 | * |
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| 501 | * @return \Jalle19\StatusManager\Database\SubscriptionQuery A secondary query class using the current class as primary query |
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| 502 | */ |
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| 503 | public function useSubscriptionQuery($relationAlias = null, $joinType = Criteria::INNER_JOIN) |
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| 504 | { |
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| 505 | return $this |
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| 506 | ->joinSubscription($relationAlias, $joinType) |
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| 507 | ->useQuery($relationAlias ? $relationAlias : 'Subscription', '\Jalle19\StatusManager\Database\SubscriptionQuery'); |
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| 508 | } |
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| 509 | |||
| 510 | /** |
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| 511 | * Exclude object from result |
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| 512 | * |
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| 513 | * @param ChildChannel $channel Object to remove from the list of results |
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| 514 | * |
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| 515 | * @return $this|ChildChannelQuery The current query, for fluid interface |
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| 516 | */ |
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| 517 | public function prune($channel = null) |
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| 518 | { |
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| 519 | if ($channel) { |
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| 520 | $this->addUsingAlias(ChannelTableMap::COL_ID, $channel->getId(), Criteria::NOT_EQUAL); |
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| 521 | } |
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| 522 | |||
| 523 | return $this; |
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| 524 | } |
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| 525 | |||
| 526 | /** |
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| 527 | * Deletes all rows from the channel table. |
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| 528 | * |
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| 529 | * @param ConnectionInterface $con the connection to use |
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| 530 | * @return int The number of affected rows (if supported by underlying database driver). |
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| 531 | */ |
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| 532 | public function doDeleteAll(ConnectionInterface $con = null) |
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| 533 | { |
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| 534 | if (null === $con) { |
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| 535 | $con = Propel::getServiceContainer()->getWriteConnection(ChannelTableMap::DATABASE_NAME); |
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| 536 | } |
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| 537 | |||
| 538 | // use transaction because $criteria could contain info |
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| 539 | // for more than one table or we could emulating ON DELETE CASCADE, etc. |
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| 540 | return $con->transaction(function () use ($con) { |
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| 541 | $affectedRows = 0; // initialize var to track total num of affected rows |
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| 542 | $affectedRows += parent::doDeleteAll($con); |
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| 543 | // Because this db requires some delete cascade/set null emulation, we have to |
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| 544 | // clear the cached instance *after* the emulation has happened (since |
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| 545 | // instances get re-added by the select statement contained therein). |
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| 546 | ChannelTableMap::clearInstancePool(); |
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| 547 | ChannelTableMap::clearRelatedInstancePool(); |
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| 548 | |||
| 549 | return $affectedRows; |
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| 550 | }); |
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| 551 | } |
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| 552 | |||
| 553 | /** |
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| 554 | * Performs a DELETE on the database based on the current ModelCriteria |
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| 555 | * |
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| 556 | * @param ConnectionInterface $con the connection to use |
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| 557 | * @return int The number of affected rows (if supported by underlying database driver). This includes CASCADE-related rows |
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| 558 | * if supported by native driver or if emulated using Propel. |
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| 559 | * @throws PropelException Any exceptions caught during processing will be |
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| 560 | * rethrown wrapped into a PropelException. |
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| 561 | */ |
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| 562 | public function delete(ConnectionInterface $con = null) |
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| 563 | { |
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| 564 | if (null === $con) { |
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| 565 | $con = Propel::getServiceContainer()->getWriteConnection(ChannelTableMap::DATABASE_NAME); |
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| 566 | } |
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| 567 | |||
| 568 | $criteria = $this; |
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| 569 | |||
| 570 | // Set the correct dbName |
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| 571 | $criteria->setDbName(ChannelTableMap::DATABASE_NAME); |
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| 572 | |||
| 573 | // use transaction because $criteria could contain info |
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| 574 | // for more than one table or we could emulating ON DELETE CASCADE, etc. |
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| 575 | return $con->transaction(function () use ($con, $criteria) { |
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| 576 | $affectedRows = 0; // initialize var to track total num of affected rows |
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| 577 | |||
| 578 | ChannelTableMap::removeInstanceFromPool($criteria); |
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| 579 | |||
| 580 | $affectedRows += ModelCriteria::delete($con); |
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| 581 | ChannelTableMap::clearRelatedInstancePool(); |
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| 582 | |||
| 583 | return $affectedRows; |
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| 584 | }); |
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| 585 | } |
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| 586 | |||
| 587 | } // ChannelQuery |
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| 588 |