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/gp-includes/formats/ -> format-json.php (source)

   1  <?php
   2  /**
   3   * GlotPress Format JSON class
   4   *
   5   * @since 2.3.0
   6   *
   7   * @package GlotPress
   8   */
   9  
  10  /**
  11   * Format class used to support JSON file format.
  12   *
  13   * @since 2.3.0
  14   */
  15  class GP_Format_JSON extends GP_Format {
  16      /**
  17       * Name of file format, used in file format dropdowns.
  18       *
  19       * @since 2.3.0
  20       *
  21       * @var string
  22       */
  23      public $name = 'JSON (.json)';
  24  
  25      /**
  26       * File extension of the file format, used to autodetect formats and when creating the output file names.
  27       *
  28       * @since 2.3.0
  29       *
  30       * @var string
  31       */
  32      public $extension = 'json';
  33  
  34      /**
  35       * Generates a string the contains the $entries to export in the JSON file format.
  36       *
  37       * @since 2.3.0
  38       *
  39       * @param GP_Project         $project         The project the strings are being exported for, not used
  40       *                                            in this format but part of the scaffold of the parent object.
  41       * @param GP_Locale          $locale          The locale object the strings are being exported for. not used
  42       *                                            in this format but part of the scaffold of the parent object.
  43       * @param GP_Translation_Set $translation_set The locale object the strings are being
  44       *                                            exported for. not used in this format but part
  45       *                                            of the scaffold of the parent object.
  46       * @param GP_Translation     $entries         The entries to export.
  47       * @return string The exported JSON string.
  48       */
  49  	public function print_exported_file( $project, $locale, $translation_set, $entries ) {
  50          $result = array();
  51  
  52          /* @var Translation_Entry $entry */
  53          foreach ( $entries as $entry ) {
  54              $key = $entry->context ? $entry->context . chr( 4 ) . $entry->singular : $entry->singular;
  55  
  56              $result[ $key ] = array_filter(
  57                  $entry->translations,
  58                  function ( $translation ) {
  59                      return null !== $translation;
  60                  }
  61              );
  62          }
  63  
  64          /**
  65           * Filter whether the exported JSON should be pretty printed.
  66           *
  67           * @since 2.3.0
  68           *
  69           * @param bool $pretty_print Whether pretty print should be enabled or not. Default false.
  70           */
  71          $pretty_print = apply_filters( 'gp_json_export_pretty_print', false );
  72  
  73          return wp_json_encode( $result, ( true === $pretty_print ) ? JSON_PRETTY_PRINT : 0 );
  74      }
  75  
  76      /**
  77       * Reads a set of original strings from a JSON file.
  78       *
  79       * @since 2.3.0
  80       *
  81       * @param string $file_name The name of the uploaded JSON file.
  82       * @return Translations|bool The extracted originals on success, false on failure.
  83       */
  84  	public function read_originals_from_file( $file_name ) {
  85          $json = $this->decode_json_file( $file_name );
  86  
  87          if ( ! $json ) {
  88              return false;
  89          }
  90  
  91          $entries = new Translations();
  92  
  93          foreach ( $json as $key => $value ) {
  94              if ( '' === $key ) {
  95                  continue;
  96              }
  97  
  98              $args = array(
  99                  'singular' => $key,
 100              );
 101  
 102              if ( false !== strpos( $key, chr( 4 ) ) ) {
 103                  $key              = explode( chr( 4 ), $key );
 104                  $args['context']  = $key[0];
 105                  $args['singular'] = $key[1];
 106              }
 107  
 108              $args['translations'] = (array) $value;
 109  
 110              $entries->add_entry( new Translation_Entry( $args ) );
 111          }
 112  
 113          return $entries;
 114      }
 115  
 116      /**
 117       * Reads a set of translations from a JSON file.
 118       *
 119       * @since 2.3.0
 120       *
 121       * @param string     $file_name The name of the uploaded properties file.
 122       * @param GP_Project $project   Unused. The project object to read the translations into.
 123       * @return Translations|bool The extracted translations on success, false on failure.
 124       */
 125  	public function read_translations_from_file( $file_name, $project = null ) {
 126          return $this->read_originals_from_file( $file_name );
 127      }
 128  
 129      /**
 130       * Loads a given JSON file and decodes its content.
 131       *
 132       * @since 2.3.0
 133       *
 134       * @param string $file_name The name of the JSON file to parse.
 135       * @return array|false The encoded value or false on failure.
 136       */
 137  	protected function decode_json_file( $file_name ) {
 138          if ( ! file_exists( $file_name ) ) {
 139              return false;
 140          }
 141  
 142          $file = file_get_contents( $file_name );
 143  
 144          if ( ! $file ) {
 145              return false;
 146          }
 147  
 148          $json = json_decode( $file, true );
 149  
 150          if ( null === $json ) {
 151              return false;
 152          }
 153  
 154          return $json;
 155      }
 156  }
 157  
 158  GP::$formats['json'] = new GP_Format_JSON();


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