      1:   2:   3:   4:   5:   6:   7:   8:   9:  10:  11:  12:  13:  14:  15:  16:  17:  18:  19:  20:  21:  22:  23:  24:  25:  26:  27:  28:  29:  30:  31:  32:  33:  34:  35:  36:  37:  38:  39:  40:  41:  42:  43:  44:  45:  46:  47:  48:  49:  50:  51:  52:  53:  54:  55:  56:  57:  58:  59:  60:  61:  62:  63:  64:  65:  66:  67:  68:  69:  70:  71:  72:  73:  74:  75:  76:  77:  78:  79:  80:  81:  82:  83:  84:  85:  86:  87:  88:  89:  90:  91:  92:  93:  94:  95:  96:  97:  98:  99: 100: 101: 102: 103: 104: 105: 106: 107: 108: 109: 110: 111: 112: 113: 114: 115: 116: 117: 118: 119: 120: 121: 122: 123: 124: 125: 126: 127: 128: 129: 130: 131: 132: 133: 134: 135: 136: 137: 138: 139: 140: 141: 142: 143: 144: 145: 146: 147: 148: 149: 150: 151: 152: 153: 154: 155: 156: 157: 158: 159: 160: 161: 162: 163: 164: 165: 166: 167: 168: 169: 170: 171: 172: 173: 174: 175: 176: 177: 178: 179: 180: 181: 182: 183: 184: 185: 186: 187: 188: 189: 190: 191: 192: 193: 194: 195: 196: 197: 198: 199: 200: 201: 202: 203: 204: 205: 206: 207: 208: 209: 210: 211: 212: 213: 214: 215: 216: 217: 218: 219: 220: 221: 222: 223: 224: 225: 226: 227: 228: 229: 230: 231: 232: 233: 234: 235: 236: 237: 238: 239: 240: 241: 242: 243: 244: 245: 246: 247: 248: 249: 250: 251: 252: 253: 254: 255: 256: 257: 258: 259: 260: 261: 262: 263: 264: 265: 266: 267: 268: 269: 270: 271: 272: 273: 274: 275: 276: 277: 278: 279: 280: 281: 282: 283:

    <?php

    namespace WPGMZA;

    global $wpdb;
    global $WPGMZA_TABLE_NAME_CUSTOM_FIELDS;
    global $WPGMZA_TABLE_NAME_MAPS_HAS_CUSTOM_FIELDS_FILTERS;

    $WPGMZA_TABLE_NAME_CUSTOM_FIELDS = $wpdb->prefix . 'wpgmza_custom_fields';
    $WPGMZA_TABLE_NAME_MAPS_HAS_CUSTOM_FIELDS_FILTERS = $wpdb->prefix . 'wpgmza_maps_has_custom_fields_filters';

    /**
     * This class deals with custom fields on a specific map object (marker, polygon, polyline, etc.)
     */
    class CustomMapObjectFields implements \IteratorAggregate, \JsonSerializable, \Countable
    {
        private static $installed = null;

        protected static $field_names_by_id = null;
        protected static $field_ids_by_name = null;

        protected $meta_table_name = null;
        private $object_id;

        private $meta;
        private $attributes;
        private $icon;

        /**
         * Constructor. DO NOT call this directly. Use the hooks, for example wpgmza_get_marker_custom_fields
         * @return WPGMZA\CustomFields
         */
        public function __construct($object_id)
        {
            global $wpdb;
            global $WPGMZA_TABLE_NAME_CUSTOM_FIELDS;

            if(!CustomFields::installed())
                CustomFields::install();

            if(!CustomMapObjectFields::$field_names_by_id)
            {
                CustomMapObjectFields::$field_names_by_id = array();

                $fields = $wpdb->get_results("SELECT id, name FROM $WPGMZA_TABLE_NAME_CUSTOM_FIELDS");

                foreach($fields as $obj)
                    CustomMapObjectFields::$field_names_by_id[(int)$obj->id] = $obj->name;

                CustomMapObjectFields::$field_ids_by_name = array_flip(CustomMapObjectFields::$field_names_by_id);
            }

            if(!$this->meta_table_name)
                throw new \Exception('No table name');

            $this->object_id = (int)$object_id;
            $this->meta = array();

            $qstr = "
                SELECT
                name,
                value,
                icon,
                attributes
                FROM `$WPGMZA_TABLE_NAME_CUSTOM_FIELDS`
                LEFT JOIN `{$this->meta_table_name}`
                ON `id`=`{$this->meta_table_name}`.`field_id`
                WHERE `object_id`=%d
                AND LENGTH(value)
                ";
            $params = array($object_id);
            $stmt = $wpdb->prepare($qstr, $params);

            $results = $wpdb->get_results($stmt);

            foreach($results as $obj)
            {
                $this->meta[$obj->name] = $obj->value;

                if(!empty($obj->icon))
                    $this->icon[$obj->name] = $obj->icon;

                if(!empty($obj->attributes))
                    $this->attributes[$obj->name] = json_decode($obj->attributes);
                else
                    $this->attributes = (object)array();
            }
        }

        public function count()
        {
            return count($this->meta);
        }

        /**
         * Get iterator for looping over fields with foreach
         * @return \ArrayIterator
         */
        public function getIterator()
        {
            return new \ArrayIterator($this->meta);
        }

        /**
         * Gets the fields to be serialized as JSON, useful for export
         * @return array
         */
        public function jsonSerialize()
        {
            return $this->meta;
        }

        /**
         * Returns true if the named meta field is set
         * @return bool
         */
        public function __isset($name)
        {
            return isset($this->meta[$name]);
        }

        /**
         * Gets the named meta field from this objects cache
         * @return mixed
         */
        public function __get($name)
        {
            if($name == 'object_id')
                return $this->object_id;

            if(isset($this->meta[$name]))
                return $this->meta[$name];

            return null;
        }

        /**
         * Sets the named meta field in this objects cache and the database
         * @return void
         */
        public function __set($name, $value)
        {
            global $wpdb;

            if($name == 'object_id')
                throw new \Exception('Property is read only');

            if(is_numeric($name))
            {
                $field_id = (int)$name;
                $name = CustomMapObjectFields::$field_names_by_id[ (int)$name ];
            }
            else
                $field_id = CustomMapObjectFields::$field_ids_by_name[$name];

            $this->meta[$name] = $value;

            $stmt = $wpdb->prepare("INSERT INTO {$this->meta_table_name}
                (field_id, object_id, value)
                VALUES
                (%d, %d, %s)
                ON DUPLICATE KEY UPDATE value = %s",
                array(
                    $field_id,
                    $this->object_id,
                    $value,
                    $value
                )
            );

            $wpdb->query($stmt);
        }

        /**
         * Removes the named meta field from the cache and deletes it from the database
         * @return void
         */
        public function __unset($name)
        {
            global $wpdb;

            unset($this->meta[$name]);

            $stmt = $wpdb->prepare("DELETE FROM {$this->meta_table_name} WHERE name=%s AND object_id=%d", array($name, $this->object_id));
            $wpdb->query($stmt);
        }

        public function remove()
        {
            global $wpdb;

            $this->meta = array();

            $stmt = $wpdb->prepare("DELETE FROM {$this->meta_table_name} WHERE object_id=%d", array($this->object_id));
            $wpdb->query($stmt);
        }

        /**
         * Returns the default HTML for the custom fields (front end)
         * TODO: This should be changed to use DOMDocument instead of plain strings, it's vulnerable to XSS attacks through UGM at the moment.
         * @return string
         */
        public function html()
        {
            $html = '';

            foreach($this->meta as $key => $value)
            {
                if(empty($key) || empty($value))
                    continue;

                $id = CustomMapObjectFields::$field_ids_by_name[$key];

                $item = '<p data-custom-field-id="' . $id . '" data-custom-field-name="' . htmlspecialchars($key) . '" ';

                foreach($this->attributes[$key] as $attr_name => $attr_value)
                {
                    // NB: Temporary fix for blank attribute names
                    if(empty($attr_name))
                        continue;

                    $item .= "$attr_name=\"" . addcslashes($attr_value, '"') . "\"";
                }

                $item .= '>';

                if(!empty($this->icon[$key]))
                    $item .= '<span class="wpgmza-custom-field fa ' . $this->icon[$key] . '"></span>';

                $item .= __($value, 'wp-google-maps');

                $item .= '</p>';

                $html .= apply_filters('wpgmza_custom_fields_row_html', $item);
            }

            return apply_filters('wpgmza_custom_fields_html', $html);
        }

        /**
         * Shows the admin controls for these custom fields
         * @return string
         */
        public static function adminHtml()
        {
            global $wpdb;
            global $WPGMZA_TABLE_NAME_CUSTOM_FIELDS;

            if(!CustomFields::installed())
                CustomFields::install();

            $fields = $wpdb->get_results("SELECT * FROM $WPGMZA_TABLE_NAME_CUSTOM_FIELDS");
            $html = '';

            foreach($fields as $field)
            {
                $attributes = '';

                foreach(json_decode($field->attributes) as $attr_name => $attr_value)
                {
                    // NB: Temporary fix for blank attribute names
                    if(empty($attr_name))
                        continue;

                    $attributes .= " $attr_name=\"" . addcslashes($attr_value, '"') . "\"";
                }

                $item = '<tr data-custom-field-id="' . $field->id . '">
                    <td>
                        ' . htmlspecialchars($field->name) . '
                    </td>
                    <td>
                        <input placeholder="' . htmlspecialchars($field->name) . '" data-custom-field-name="' . addcslashes($field->name, '"') . '" name="wpgmza-custom-field-' . $field->id . '" ' . $attributes . '/>
                    </td>
                </tr>';

                $html .= $item;
            }

            return $html;
        }
    }