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<?php |
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/** |
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* Wraps an array (meta data for now) and tells if there was any changes. |
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* |
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* The main idea behind this class is to avoid doing unneeded |
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* SQL updates if nothing changed. |
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* |
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* @version 1.0.19 |
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*/ |
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defined( 'ABSPATH' ) || exit; |
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/** |
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* Meta data class. |
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*/ |
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class GetPaid_Meta_Data implements JsonSerializable { |
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/** |
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* Current data for metadata |
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* |
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* @since 1.0.19 |
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* @var array |
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*/ |
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protected $current_data; |
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/** |
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* Metadata data |
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* |
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* @since 1.0.19 |
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* @var array |
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*/ |
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protected $data; |
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/** |
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* Constructor. |
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* |
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* @param array $meta Data to wrap behind this function. |
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*/ |
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public function __construct( $meta = array() ) { |
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$this->current_data = $meta; |
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$this->apply_changes(); |
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} |
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/** |
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* When converted to JSON. |
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* |
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* @return object|array |
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*/ |
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public function jsonSerialize() { |
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return $this->get_data(); |
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} |
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/** |
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* Merge changes with data and clear. |
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*/ |
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public function apply_changes() { |
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$this->data = $this->current_data; |
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} |
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/** |
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* Creates or updates a property in the metadata object. |
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* |
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* @param string $key Key to set. |
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* @param mixed $value Value to set. |
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*/ |
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public function __set( $key, $value ) { |
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$this->current_data[ $key ] = $value; |
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} |
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/** |
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* Checks if a given key exists in our data. This is called internally |
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* by `empty` and `isset`. |
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* |
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* @param string $key Key to check if set. |
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* |
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* @return bool |
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*/ |
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public function __isset( $key ) { |
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return array_key_exists( $key, $this->current_data ); |
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} |
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/** |
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* Returns the value of any property. |
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* |
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* @param string $key Key to get. |
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* @return mixed Property value or NULL if it does not exists |
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*/ |
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public function __get( $key ) { |
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if ( array_key_exists( $key, $this->current_data ) ) { |
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return $this->current_data[ $key ]; |
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} |
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return null; |
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} |
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/** |
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* Return data changes only. |
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* |
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* @return array |
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*/ |
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public function get_changes() { |
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$changes = array(); |
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foreach ( $this->current_data as $id => $value ) { |
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if ( ! array_key_exists( $id, $this->data ) || $value !== $this->data[ $id ] ) { |
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$changes[ $id ] = $value; |
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} |
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} |
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return $changes; |
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} |
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/** |
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* Return all data as an array. |
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* |
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* @return array |
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*/ |
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public function get_data() { |
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return $this->data; |
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} |
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} |
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AyeCode /
invoicing
