| Total Complexity | 62 |
| Total Lines | 574 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Model 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.
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 Model, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | abstract class Model implements ArrayAccess, IteratorAggregate, JsonSerializable, Serializable |
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| 19 | { |
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| 20 | /** |
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| 21 | * Attribute names as keys and types as values. |
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| 22 | * |
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| 23 | * @var array |
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| 24 | */ |
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| 25 | protected $attributes = array(); |
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| 26 | |||
| 27 | /** |
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| 28 | * The model data. |
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| 29 | * |
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| 30 | * @var array |
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| 31 | */ |
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| 32 | protected $data = array(); |
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| 33 | |||
| 34 | /** |
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| 35 | * Whether the model is currently in a valid state. |
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| 36 | * |
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| 37 | * @var bool |
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| 38 | */ |
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| 39 | protected $valid = false; |
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| 40 | |||
| 41 | /** |
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| 42 | * Errors that occurred with validation. |
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| 43 | * |
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| 44 | * @var array |
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| 45 | */ |
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| 46 | protected $errors = array(); |
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| 47 | |||
| 48 | /** |
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| 49 | * The attribute that uniquely identifies the model. |
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| 50 | * |
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| 51 | * @var string |
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| 52 | */ |
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| 53 | protected $key; |
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| 54 | |||
| 55 | /** |
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| 56 | * Attributes that have been modified. |
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| 57 | * |
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| 58 | * @var array |
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| 59 | */ |
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| 60 | protected $changed = array(); |
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| 61 | |||
| 62 | /** |
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| 63 | * Instantiate a new model. |
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| 64 | * |
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| 65 | * @param array $data [optional] Attributes to set on the model |
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| 66 | */ |
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| 67 | public function __construct($data = array()) |
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| 68 | { |
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| 69 | $this->setMany($data); |
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| 70 | } |
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| 71 | |||
| 72 | /** |
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| 73 | * Generate multiple instances of the model using arrays of attributes. |
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| 74 | * |
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| 75 | * @param array $rows |
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| 76 | * @return array |
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| 77 | */ |
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| 78 | public static function generate(array $rows = array()) |
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| 87 | } |
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| 88 | |||
| 89 | /** |
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| 90 | * Generate multiple instances of the model with the assumption that they |
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| 91 | * aren't new. |
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| 92 | * |
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| 93 | * Equivalent to generate() but with a reinstate() call on each new model. |
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| 94 | * |
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| 95 | * @param array $rows |
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| 96 | * @return array |
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| 97 | */ |
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| 98 | public static function hydrate(array $rows = array()) |
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| 99 | { |
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| 100 | $instances = static::generate($rows); |
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| 101 | |||
| 102 | foreach ($instances as $instance) { |
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| 103 | $instance->reinstate(); |
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| 104 | } |
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| 105 | |||
| 106 | return $instances; |
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| 107 | } |
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| 108 | |||
| 109 | /** |
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| 110 | * Recursively convert a model, or set of models, to an array. |
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| 111 | * |
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| 112 | * @param Model[]|Model $model |
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| 113 | * @return array |
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| 114 | */ |
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| 115 | public static function convertToArray($model) |
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| 116 | { |
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| 117 | if (is_object($model)) { |
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| 118 | if (method_exists($model, 'toArray')) { |
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| 119 | $model = $model->toArray(); |
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| 120 | } else { |
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| 121 | $model = (array) $model; |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | if (is_array($model)) { |
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| 126 | foreach ($model as $key => $value) { |
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| 127 | $model[$key] = $value ? static::convertToArray($value) : $value; |
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| 128 | } |
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| 129 | } |
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| 130 | |||
| 131 | return $model; |
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| 132 | } |
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| 133 | |||
| 134 | /** |
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| 135 | * Recursively convert a model, or set of models, to JSON. |
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| 136 | * |
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| 137 | * @param Model[]|Model $model |
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| 138 | * @param int $options [optional] json_encode() options |
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| 139 | * @return string |
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| 140 | */ |
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| 141 | public static function convertToJson($model, $options = null) |
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| 144 | } |
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| 145 | |||
| 146 | /** |
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| 147 | * Prepare the given attribute name. |
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| 148 | * |
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| 149 | * @param string $attribute |
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| 150 | * @return string |
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| 151 | */ |
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| 152 | protected function prepareAttribute($attribute) |
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| 153 | { |
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| 154 | return strtolower($attribute); |
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| 155 | } |
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| 156 | |||
| 157 | /** |
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| 158 | * Retrieve the attribute names of the model. |
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| 159 | * |
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| 160 | * @return array |
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| 161 | */ |
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| 162 | public function attributes() |
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| 163 | { |
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| 164 | return array_keys($this->attributes) ?: array_keys($this->data ?: []); |
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| 165 | } |
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| 166 | |||
| 167 | /** |
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| 168 | * Retrieve the attribute types of the model. |
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| 169 | * |
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| 170 | * Attribute names are keys and types are values. |
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| 171 | * |
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| 172 | * @return array |
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| 173 | */ |
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| 174 | public function attributeTypes() |
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| 175 | { |
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| 176 | return $this->attributes; |
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| 177 | } |
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| 178 | |||
| 179 | /** |
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| 180 | * Get the transformer for accessing attributes. |
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| 181 | * |
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| 182 | * @return Transformer |
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| 183 | */ |
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| 184 | public function getAttributeAccessor() |
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| 185 | { |
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| 186 | return new Accessor($this->dateFormat()); |
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| 187 | } |
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| 188 | |||
| 189 | /** |
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| 190 | * Get the transformer for mutating attributes. |
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| 191 | * |
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| 192 | * @return Transformer |
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| 193 | */ |
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| 194 | public function getAttributeMutator() |
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| 195 | { |
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| 196 | return new Mutator($this->dateFormat()); |
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| 197 | } |
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| 198 | |||
| 199 | /** |
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| 200 | * Retrieve the name of the attribute that uniquely identifies this model. |
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| 201 | * |
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| 202 | * Defaults to `'id'` if the `key` property is unset. |
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| 203 | * |
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| 204 | * @return string |
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| 205 | */ |
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| 206 | public function key() |
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| 207 | { |
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| 208 | if (!isset($this->key)) { |
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| 209 | return 'id'; |
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| 210 | } |
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| 211 | |||
| 212 | return $this->prepareAttribute($this->key); |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * Retrieve the value of the attribute that uniquely identifies this model. |
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| 217 | * |
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| 218 | * @return mixed |
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| 219 | */ |
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| 220 | public function id() |
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| 221 | { |
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| 222 | return $this->access($this->key()); |
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| 223 | } |
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| 224 | |||
| 225 | /** |
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| 226 | * Retrieve raw attributes that have changed. |
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| 227 | * |
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| 228 | * @return array |
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| 229 | */ |
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| 230 | public function changed() |
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| 231 | { |
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| 232 | return array_intersect_key($this->data, array_flip($this->changed)); |
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| 233 | } |
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| 234 | |||
| 235 | /** |
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| 236 | * Clear the record of changed attributes on the model, declaring the |
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| 237 | * current attributes as unmodified. |
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| 238 | */ |
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| 239 | public function reinstate() |
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| 240 | { |
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| 241 | $this->changed = array(); |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * Retrieve the model's attributes. |
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| 246 | * |
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| 247 | * This method uses accessors to retrieve the data. |
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| 248 | * |
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| 249 | * @return array |
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| 250 | */ |
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| 251 | public function data() |
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| 252 | { |
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| 253 | $data = array(); |
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| 254 | |||
| 255 | foreach (array_keys($this->data) as $attribute) { |
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| 256 | $data[$attribute] = $this->get($attribute); |
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| 257 | } |
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| 258 | |||
| 259 | return $data; |
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| 260 | } |
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| 261 | |||
| 262 | /** |
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| 263 | * Retrieve the model's raw attributes. |
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| 264 | * |
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| 265 | * This method returns the raw data without using any accessors. |
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| 266 | * |
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| 267 | * @return array |
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| 268 | */ |
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| 269 | public function rawData() |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * Determine whether the given attribute is set on the model. |
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| 276 | * |
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| 277 | * @param string $attribute |
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| 278 | * @return bool |
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| 279 | */ |
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| 280 | public function has($attribute) |
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| 281 | { |
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| 282 | return isset($this->data[$this->prepareAttribute($attribute)]); |
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| 283 | } |
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| 284 | |||
| 285 | /** |
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| 286 | * Determine whether the given attribute has a defined type. |
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| 287 | * |
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| 288 | * @param string $attribute |
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| 289 | * @return bool |
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| 290 | */ |
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| 291 | protected function mutable($attribute) |
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| 292 | { |
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| 293 | return isset($this->attributes[$this->prepareAttribute($attribute)]); |
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| 294 | } |
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| 295 | |||
| 296 | /** |
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| 297 | * Unmutate the given attribute to be retrieved. |
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| 298 | * |
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| 299 | * @param string $attribute |
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| 300 | * @return mixed |
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| 301 | */ |
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| 302 | protected function access($attribute) |
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| 303 | { |
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| 304 | if (!$this->has($attribute)) { |
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| 305 | return null; |
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| 306 | } |
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| 307 | |||
| 308 | $attribute = $this->prepareAttribute($attribute); |
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| 309 | |||
| 310 | $value = $this->data[$attribute]; |
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| 311 | |||
| 312 | if (!$this->mutable($attribute)) { |
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| 313 | return $value; |
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| 314 | } |
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| 315 | |||
| 316 | $type = $this->attributes[$attribute]; |
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| 317 | |||
| 318 | $accessor = $this->getAttributeAccessor(); |
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| 319 | |||
| 320 | return $accessor->transform($value, $type); |
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| 321 | } |
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| 322 | |||
| 323 | /** |
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| 324 | * Mutate the given attribute to be set on the model. |
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| 325 | * |
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| 326 | * @param string $attribute |
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| 327 | * @param mixed $value [optional] |
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| 328 | * @return mixed |
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| 329 | */ |
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| 330 | protected function mutate($attribute, $value = null) |
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| 331 | { |
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| 332 | if (!$this->mutable($attribute)) { |
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| 333 | return $value; |
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| 334 | } |
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| 335 | |||
| 336 | $type = $this->attributes[$this->prepareAttribute($attribute)]; |
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| 337 | |||
| 338 | $mutator = $this->getAttributeMutator(); |
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| 339 | |||
| 340 | return $mutator->transform($value, $type); |
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| 341 | } |
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| 342 | |||
| 343 | /** |
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| 344 | * Retrieve the given attribute from the model. |
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| 345 | * |
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| 346 | * @param string $attribute |
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| 347 | * @return mixed |
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| 348 | */ |
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| 349 | public function get($attribute) |
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| 350 | { |
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| 351 | return $this->access($attribute); |
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| 352 | } |
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| 353 | |||
| 354 | /** |
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| 355 | * Set the value of an attribute on the model. |
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| 356 | * |
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| 357 | * If attribute is an array it will be forwarded to `setMany()`. |
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| 358 | * |
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| 359 | * @param array|string $attribute |
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| 360 | * @param mixed $value [optional] |
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| 361 | */ |
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| 362 | public function set($attribute, $value = null) |
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| 363 | { |
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| 364 | if (is_array($attribute)) { |
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| 365 | return $this->setMany($attribute); |
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| 366 | } |
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| 367 | |||
| 368 | $attribute = $this->prepareAttribute($attribute); |
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| 369 | $value = $this->mutate($attribute, $value); |
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| 370 | |||
| 371 | if (!$this->has($attribute) || $value !== $this->data[$attribute]) { |
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| 372 | $this->data[$attribute] = $value; |
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| 373 | $this->changed = array_merge($this->changed, array($attribute)); |
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| 374 | } |
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| 375 | } |
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| 376 | |||
| 377 | /** |
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| 378 | * Set the values of the given attributes on the model. |
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| 379 | * |
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| 380 | * @param array $values |
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| 381 | */ |
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| 382 | public function setMany($values) |
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| 383 | { |
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| 384 | foreach ((array) $values as $attribute => $value){ |
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| 385 | $this->set($attribute, $value); |
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| 386 | } |
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| 387 | } |
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| 388 | |||
| 389 | /** |
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| 390 | * Remove the value of an attribute. |
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| 391 | * |
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| 392 | * @param string $attribute |
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| 393 | */ |
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| 394 | public function remove($attribute) |
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| 395 | { |
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| 396 | unset($this->data[$this->prepareAttribute($attribute)]); |
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| 397 | } |
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| 398 | |||
| 399 | /** |
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| 400 | * Retrieve the format to use for date attributes. |
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| 401 | * |
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| 402 | * @return string |
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| 403 | */ |
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| 404 | public function dateFormat() |
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| 405 | { |
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| 406 | return 'Y-m-d H:i:s'; |
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| 407 | } |
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| 408 | |||
| 409 | /** |
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| 410 | * Set the `created` and `modified` attributes using the given timestamp. |
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| 411 | * |
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| 412 | * Defaults to the current system time if none is given. Only sets `created` |
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| 413 | * attribute if `id` evaluates to false. |
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| 414 | * |
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| 415 | * @param int $time [optional] |
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| 416 | */ |
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| 417 | public function stamp($time = null) |
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| 418 | { |
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| 419 | $time = $time ?: time(); |
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| 420 | $this->set('modified', $time); |
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| 421 | |||
| 422 | if (!$this->has('created')) { |
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| 423 | $this->set('created', $time); |
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| 424 | } |
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| 425 | } |
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| 426 | |||
| 427 | /** |
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| 428 | * Validate all of the model's attributes. |
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| 429 | * |
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| 430 | * @return bool |
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| 431 | */ |
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| 432 | public function validate() |
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| 433 | { |
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| 434 | return $this->valid = !count($this->errors); |
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| 435 | } |
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| 436 | |||
| 437 | /** |
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| 438 | * Retrieve an array of error strings generated by the last validation |
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| 439 | * attempt. |
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| 440 | * |
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| 441 | * @return array |
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| 442 | */ |
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| 443 | public function errors() |
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| 444 | { |
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| 445 | return $this->errors; |
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| 446 | } |
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| 447 | |||
| 448 | /** |
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| 449 | * Recursively convert the model to an array. |
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| 450 | * |
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| 451 | * @return array |
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| 452 | */ |
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| 453 | public function toArray() |
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| 454 | { |
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| 455 | return static::convertToArray($this->data()); |
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| 456 | } |
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| 457 | |||
| 458 | /** |
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| 459 | * Serialize the model as a JSON string. |
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| 460 | * |
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| 461 | * @return string |
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| 462 | */ |
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| 463 | public function toJson() |
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| 464 | { |
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| 465 | return json_encode($this->jsonSerialize()); |
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| 466 | } |
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| 467 | |||
| 468 | /** |
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| 469 | * Determine whether an attribute is set on the model. Shortcut for `has()`. |
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| 470 | * |
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| 471 | * @param string $property |
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| 472 | * @return bool |
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| 473 | */ |
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| 474 | public function __isset($property) |
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| 475 | { |
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| 476 | return $this->has($property); |
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| 477 | } |
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| 478 | |||
| 479 | /** |
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| 480 | * Retrieve an attribute from the model. Shortcut for `get()`. |
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| 481 | * |
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| 482 | * @param string $property |
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| 483 | * @return mixed |
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| 484 | */ |
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| 485 | public function __get($property) |
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| 486 | { |
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| 487 | return $this->get($property); |
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| 488 | } |
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| 489 | |||
| 490 | /** |
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| 491 | * Set an attribute's value. Shortcut for `set()`. |
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| 492 | * |
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| 493 | * @param string $property |
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| 494 | * @param mixed $value |
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| 495 | */ |
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| 496 | public function __set($property, $value) |
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| 497 | { |
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| 498 | $this->set($property, $value); |
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| 499 | } |
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| 500 | |||
| 501 | /** |
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| 502 | * Unset an attribute's value. Shortcut for `remove()`. |
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| 503 | * |
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| 504 | * @param string $property |
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| 505 | */ |
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| 506 | public function __unset($property) |
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| 507 | { |
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| 508 | $this->remove($property); |
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| 509 | } |
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| 510 | |||
| 511 | /** |
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| 512 | * Determine whether an attribute is set at the given offset. |
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| 513 | * |
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| 514 | * @param mixed $offset |
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| 515 | * @return bool |
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| 516 | */ |
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| 517 | public function offsetExists($offset) |
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| 518 | { |
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| 519 | return $this->has($offset); |
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| 520 | } |
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| 521 | |||
| 522 | /** |
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| 523 | * Get the attribute at the given offset. |
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| 524 | * |
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| 525 | * @param mixed $offset |
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| 526 | * @return mixed |
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| 527 | */ |
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| 528 | public function offsetGet($offset) |
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| 529 | { |
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| 530 | return $this->get($offset); |
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| 531 | } |
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| 532 | |||
| 533 | /** |
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| 534 | * Set the attribute at the given offset. |
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| 535 | * |
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| 536 | * @param mixed $offset |
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| 537 | * @param mixed $value |
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| 538 | */ |
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| 539 | public function offsetSet($offset, $value) |
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| 540 | { |
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| 541 | $this->set($offset, $value); |
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| 542 | } |
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| 543 | |||
| 544 | /** |
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| 545 | * Unset the attribute at the given offset. |
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| 546 | * |
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| 547 | * @param mixed $offset |
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| 548 | */ |
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| 549 | public function offsetUnset($offset) |
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| 552 | } |
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| 553 | |||
| 554 | /** |
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| 555 | * Retrieve an iterator for the model's data. |
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| 556 | * |
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| 557 | * @return \Traversable |
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| 558 | */ |
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| 559 | public function getIterator() |
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| 560 | { |
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| 561 | return new ArrayIterator($this->data()); |
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| 562 | } |
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| 563 | |||
| 564 | /** |
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| 565 | * Serialize the model's raw data. |
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| 566 | * |
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| 567 | * @return string |
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| 568 | */ |
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| 569 | public function serialize() |
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| 570 | { |
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| 571 | return serialize($this->data); |
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| 572 | } |
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| 573 | |||
| 574 | /** |
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| 575 | * Unserialize the model's raw data. |
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| 576 | * |
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| 577 | * @param string $serialized |
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| 578 | */ |
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| 579 | public function unserialize($serialized) |
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| 580 | { |
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| 581 | $this->data = unserialize($serialized); |
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| 582 | } |
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| 583 | |||
| 584 | /** |
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| 585 | * Prepare the model's attributes for JSON serialization. |
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| 586 | * |
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| 587 | * @return array |
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| 588 | */ |
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| 589 | public function jsonSerialize() |
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| 592 | } |
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| 593 | } |
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| 594 |