Complex classes like Row 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 Row, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 10 | class Row extends AbstractRow |
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| 11 | { |
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| 12 | private $values = []; |
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| 13 | private $relations = []; |
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| 14 | private $changed = false; |
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| 15 | |||
| 16 | /** |
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| 17 | * {@inheritdoc} |
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| 18 | */ |
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| 19 | public function __construct(Table $table) |
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| 31 | |||
| 32 | /** |
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| 33 | * Clear the current cache. |
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| 34 | */ |
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| 35 | public function clearCache() |
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| 39 | |||
| 40 | /** |
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| 41 | * Initialize the row with the data from database. |
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| 42 | * |
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| 43 | * @param array $values |
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| 44 | * @param array $relations |
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| 45 | */ |
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| 46 | public function init(array $values, array $relations = []) |
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| 52 | |||
| 53 | /** |
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| 54 | * Magic method to return properties or load them automatically. |
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| 55 | * |
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| 56 | * @param string $name |
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| 57 | */ |
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| 58 | public function __get($name) |
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| 79 | |||
| 80 | /** |
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| 81 | * Magic method to store properties. |
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| 82 | * |
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| 83 | * @param string $name |
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| 84 | * @param mixed $value |
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| 85 | */ |
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| 86 | public function __set($name, $value) |
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| 118 | |||
| 119 | /** |
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| 120 | * Magic method to check if a property is defined or not. |
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| 121 | * |
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| 122 | * @param string $name Property name |
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| 123 | * |
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| 124 | * @return bool |
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| 125 | */ |
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| 126 | public function __isset($name) |
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| 130 | |||
| 131 | /** |
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| 132 | * {@inheritdoc} |
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| 133 | */ |
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| 134 | public function toArray(array $bannedEntities = []) |
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| 153 | |||
| 154 | /** |
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| 155 | * Saves this row in the database. |
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| 156 | * |
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| 157 | * @param bool|array $relations Set true to save the relations with other entities |
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| 158 | * |
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| 159 | * @return $this |
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| 160 | */ |
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| 161 | public function save($relations = false) |
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| 251 | } |
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| 252 |
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.