public function insertRandomRow()
{
/* generate the field values */
/* first generate the random values, then add them to query */
$workTypeId = rand(1, WorkType::getRowsNumber());
$districtId = rand(1, District::getRowsNumber());
$jobSubCategoryId = rand(1, JobSubCategory::getRowsNumber());
$salaryLow = rand(20, 200) * 1000;
$salaryRange = rand(5, 30) * 1000;
$daysOffset = -60 + rand(1, 90);
$startDate = strtotime(sprintf("%+d", $daysOffset) . " day");
$endDate = strtotime(sprintf("%+d", $daysOffset + 30) . " day");
/* Processing this information */
$workType = WorkType::getWorkTypeName(WorkType::getWorkType($workTypeId));
$district = District::getDistrict($districtId);
$districtName = District::getDistrictName($district);
$regionName = Region::getRegionName(Region::getRegion(District::getRegionId($district)));
$jobSubCategory = JobSubCategory::getJobSubCategory($jobSubCategoryId);
$jobSubCategoryName = JobSubCategory::getJobSubCategoryName($jobSubCategory);
$jobCategoryId = JobSubCategory::getJobCategoryId($jobSubCategory);
$jobCategoryName = JobCategory::getJobCategoryName(JobCategory::getJobCategory($jobCategoryId));
$salaryHigh = $salaryLow + $salaryRange;
$jobTitle = "Job in {$regionName}";
$jobDescription = "{$jobSubCategoryName} " . strtolower($workType) . " job in {$districtName}, {$regionName}, in the domain of {$jobCategoryName}, salary from \${$salaryLow} to \${$salaryHigh}.\n";
$jobDescription .= "Posted on " . date("D, jS \\of F, Y", $startDate) . ", valid until " . date("D, jS \\of F, Y", $endDate);
/* Now build the query with the values generated above */
/* job_id */
$values = "NULL";
//AUTO_INCREMENT field
/* job_title */
$values .= ", '{$jobTitle}'";
/* job_description */
$values .= ", '{$jobDescription}'";
/* work_type_id */
$values .= ", '{$workTypeId}'";
/* district_id */
$values .= ", '{$districtId}'";
/* subcategory_id */
$values .= ", '{$jobSubCategoryId}'";
/* salary_low */
$values .= ", '{$salaryLow}'";
/* SalaryHihg */
$values .= ", '{$salaryHigh}'";
/* start_ad_date */
/* format: '2013-05-14 00:00:00' */
$values .= ", '" . date("Y-m-d 00:00:00", $startDate) . "'";
/* end_ad_date */
$values .= ", '" . date("Y-m-d 00:00:00", $endDate) . "'";
/* Build the query */
$query = Job::insertRowQuery($values);
return $query;
}