1: <?php
  2: 
  3: /**
  4:  * Delete value in the database.
  5:  *
  6:  * @param  string $slug
  7:  *
  8:  * @return bool
  9:  */
 10: function papi_delete_option( $slug ) {
 11:     return papi_delete_field( 0, $slug, Papi_Core_Page::TYPE_OPTION );
 12: }
 13: 
 14: /**
 15:  * Check if it's a option page url.
 16:  *
 17:  * @return bool
 18:  */
 19: function papi_is_option_page() {
 20:     $request_uri = $_SERVER['REQUEST_URI'];
 21:     $parsed_url  = parse_url( $request_uri );
 22: 
 23:     if ( ! isset( $parsed_url['query'] ) || empty( $parsed_url['query'] ) ) {
 24:         return false;
 25:     }
 26: 
 27:     $query = $parsed_url['query'];
 28: 
 29:     return is_admin()
 30:         && ! preg_match( '/page\-type\=/', $query )
 31:         && preg_match( '/page\=papi/', $query );
 32: }
 33: 
 34: /**
 35:  * Get property value for property on a option page.
 36:  *
 37:  * @param  string $slug
 38:  * @param  mixed  $default
 39:  *
 40:  * @return mixed
 41:  */
 42: function papi_get_option( $slug, $default = null ) {
 43:     return papi_get_field( 0, $slug, $default, Papi_Core_Page::TYPE_OPTION );
 44: }
 45: 
 46: /**
 47:  * Shortcode for `papi_get_option` function.
 48:  *
 49:  * [papi_option slug="field_name" default="Default value"][/papi_option]
 50:  *
 51:  * @param  array $atts
 52:  *
 53:  * @return mixed
 54:  */
 55: function papi_option_shortcode( $atts ) {
 56:     $default = isset( $atts['default'] ) ? $atts['default'] : '';
 57: 
 58:     if ( empty( $atts['slug'] ) ) {
 59:         $value = $default;
 60:     } else {
 61:         $value = papi_get_option( $atts['slug'], $default );
 62:     }
 63: 
 64:     if ( is_array( $value ) ) {
 65:         $value = implode( ', ', $value );
 66:     }
 67: 
 68:     return $value;
 69: }
 70: 
 71: add_shortcode( 'papi_option', 'papi_option_shortcode' );
 72: 
 73: /**
 74:  * Check if option type exists.
 75:  *
 76:  * @param  string $id
 77:  *
 78:  * @return bool
 79:  */
 80: function papi_option_type_exists( $id ) {
 81:     $exists       = false;
 82:     $option_types = papi_get_all_page_types( false, null, true );
 83: 
 84:     foreach ( $option_types as $option_type ) {
 85:         if ( $option_type->match_id( $id ) ) {
 86:             $exists = true;
 87:             break;
 88:         }
 89:     }
 90: 
 91:     return $exists;
 92: }
 93: 
 94: /**
 95:  * Update field with new value. The old value will be deleted.
 96:  *
 97:  * @param  string $slug
 98:  * @param  mixed  $value
 99:  *
100:  * @return bool
101:  */
102: function papi_update_option( $slug, $value = null ) {
103:     return papi_update_field( 0, $slug, $value, Papi_Core_Page::TYPE_OPTION );
104: }
105: 
106: /**
107:  * Echo the value for property on a option page.
108:  *
109:  * @param string $slug
110:  * @param mixed  $default
111:  */
112: function the_papi_option( $slug = null, $default = null ) {
113:     $value = papi_get_option( $slug, $default );
114: 
115:     if ( is_array( $value ) ) {
116:         $value = implode( ', ', $value );
117:     }
118: 
119:     echo $value;
120: }
121: