protected static function queryConditionRegionId($regionId) { /* Only district IDs available in the job table, so have to retrieve them from the district table */ $districtRows = District::getDistrictList($regionId); $districtList = ""; while (($districtRow = $districtRows->fetch_row()) != NULL) { $districtList .= District::getDistrictId($districtRow) . ", "; } $condition = ""; if (!empty($districtList)) { $districtList = substr($districtList, 0, -strlen(", ")); $condition = "`district_id` IN ({$districtList})"; } return $condition; }
protected function jsDistrictUpdate() { $output = ""; /* create the region <-> district connection */ $output .= "var districtNames = new Array();\n"; $output .= "var districtIds = new Array();\n"; $output .= "districtNames[" . static::anyRegionCode . "] = [\"Select region first\"];\n"; $output .= "districtIds[" . static::anyRegionCode . "] = [\"" . static::anyDistrictCode . "\"];\n"; $regionList = Region::getAllRows(); $regionCount = 0; while (($region = $regionList->fetch_row()) != NULL) { $regionId = Region::getRegionId($region); $districtList = District::getDistrictList($regionId); /* first the district names */ $output .= "districtNames[{$regionId}] = [\"Any district\""; while (($district = $districtList->fetch_row()) != NULL) { $output .= ", \"" . District::getDistrictName($district) . "\""; } $output .= "];\n"; /* then the district Ids */ $output .= "districtIds[{$regionId}] = [\"" . static::anyDistrictCode . "\""; $districtList->data_seek(0); while (($district = $districtList->fetch_row()) != NULL) { $output .= ", \"" . District::getDistrictId($district) . "\""; } $output .= "];\n"; } /* print the districtUpdate() function */ /* the below code is JavaScript */ $output .= "\n"; $output .= "districtList = document." . static::formName . "." . static::districtIdFieldName . ";\n"; $output .= "function districtUpdate(selectedRegionId){\n"; $output .= " districtList.options.length = 0;\n"; $output .= " for (i=0; i < districtNames[selectedRegionId].length; i++) {\n"; $output .= " districtList.options[districtList.options.length] = new Option(districtNames[selectedRegionId][i],districtIds[selectedRegionId][i]);\n"; $output .= " }\n"; $output .= "}\n"; return $output; }