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<?php |
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namespace frictionlessdata\tableschema\Fields; |
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use frictionlessdata\tableschema\Exceptions\FieldValidationException; |
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use frictionlessdata\tableschema\SchemaValidationError; |
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class FieldsFactory |
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{ |
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/** |
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* list of all the available field classes |
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* ordered in infer order - the most strict field first |
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*/ |
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public static $fieldClasses = [ |
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"\\frictionlessdata\\tableschema\\Fields\\IntegerField", |
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"\\frictionlessdata\\tableschema\\Fields\\NumberField", |
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"\\frictionlessdata\\tableschema\\Fields\\StringField", |
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]; |
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/** |
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* get a new field object in the correct type according to the descriptor |
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* @param object $descriptor |
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* @return BaseField |
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* @throws \Exception |
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*/ |
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public static function field($descriptor) |
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{ |
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foreach (static::$fieldClasses as $fieldClass) { |
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/** @var BaseField $fieldClass */ |
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if ($field = $fieldClass::inferDescriptor($descriptor)) { |
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return $field; |
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} |
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} |
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throw new FieldValidationException([ |
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new SchemaValidationError( |
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SchemaValidationError::SCHEMA_VIOLATION, |
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"Could not find a valid field for descriptor: ".json_encode($descriptor)) |
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]); |
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} |
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/** |
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* @param $val |
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* @param null $descriptor |
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* @return mixed |
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* @throws FieldValidationException |
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*/ |
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public static function infer($val, $descriptor=null, $lenient=false) |
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{ |
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foreach (static::$fieldClasses as $fieldClass) { |
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/** @var BaseField $fieldClass */ |
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if ($field = $fieldClass::infer($val, $descriptor, $lenient)) { |
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return $field; |
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} |
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} |
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throw new FieldValidationException([ |
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new SchemaValidationError( |
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SchemaValidationError::SCHEMA_VIOLATION, |
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"Could not find a valid field for value: ".json_encode($val)) |
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]); |
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} |
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} |
OriHoch /
tableschema-php
