This structure will have several pages only foreach or while is only showing the last result, this problem occurred after I made this function, I've seen several questions and is something related to matriz
class Layout {
private $sql, $row;
private function set_layout($cond, $cond_r) {
$this->sql = $this->select("*", "table", "".$cond."", array($cond_r));
foreach ($this->sql as $this->row) :
return $this->row['name'];
endforeach;
}
public function get_layout($cond, $cond_r) {
return $this->set_layout($cond, $cond_r);
}
}
echo $midia->get_layout("WHERE status != ? ORDER BY id DESC", 0);
I'm not sure but I think you're looking for something like:
class Layout {
private $sql, $row;
private function set_layout($cond, $cond_r) {
$this->sql = $this->select("*", "table", "".$cond."", array($cond_r));
$rows = array();
foreach ($this->sql as $this->row) :
$rows[] = $this->row['name'];
endforeach;
return implode($rows); //Return array of rows AFTER loop
}
public function get_layout($cond, $cond_r) {
return $this->set_layout($cond, $cond_r);
}
}
echo $midia->get_layout("WHERE status != ? ORDER BY id DESC", 0);
Related
public function subchapt()
{
$result = $this->recursive_subchapter_id($level_title);
}
public function recursive_subchapter_id($level_title)
{
$level_data = $this->db->query("SELECT * FROM presto_project_level WHERE level_title ='". $level_title."'")->result_array();
if(count($level_data)>0){
$parentid1 = '';
$leveltitle1 = '';
$parentid1 = trim($level_data[0]['parent_id']);
$leveltitle1 = trim($level_data[0]['level_title']);
if($parentid1 == '0') {
return $leveltitle1;die;
}
else
{
$res = $this->recursive_subchapter_id($parentid1);
return $res;die;
}
}
else{
return $level_title;die;
}
}
every time getting result array is null. i tried directly in url so it was give result array and its count. but while call from other function it was give count of zero.
instead of checking the parentid in the recursive_subchapter_id(), check in subchapt() and then call again recursive_subchapter_id() if it not satisfy the condition.
How to implode and insert values into the database in CodeIgniter?
I am creating multiple choice quiz script using CodeIgniter framework. I want to store user results like this:
id userid q_id answer_id time_taken
1 1 1,2,3,4,5 2,3,4,5,3 4,5,7,6,7
in my controller:
public function insert_result()
{
$this->load->model('quiz_models');
$user_id=$this->input->post('user_id');
$qq_id=$this->input->post('questionid');
$answer_id=$this->input->post('AnswerID');
$time_taken=$this->input->post('timetaken');
$question_no=$this->input->post('question_no');
$bd = "$question_no";
switch ($bd) {
case"1":
$data=array('user_id'=>$user_id,
'q_id'=>$qq_id,
'answer_id'=>$answer_id,
'time_taken'=>$time_taken);
$this->quiz_models->insert_result($data);
break;
case"2":
quiz_test();
break;
case"3":
quiz_test();
break;
case"4":
quiz_test();
break;
case"5":
quiz_test();
$this->session->unset_userdata('lastids');
break;
default:
echo "something is wrong";
}
}
public function quiz_test()
{
$this->load->model('quiz_models');
$quiz=$this->quiz_models->quiz_test();
foreach($quiz as $row){
$qid=$row->q_id;
$ans=$row->answer_id;
$time=$row->time_taken;
$a = array("$qq_id","$qid");
$b = array("$answer_id","$ans");
$c = array("$time_taken","$time");
$comma = implode(",",$a);
$comma1 = implode(",",$b);
$comma2 = implode(",",$c);
$data=array('q_id'=>$comma,
'answer_id'=>$comma1,
'time_taken'=>$comma2);
$this->quiz_model->update_result($data);
}
}
}
and Model:
function insert_result($data)
{
$this->dbb->insert('results',$data);
$sectio=$this->db->insert_id();
$this->session->set_userdata('lastids',$sectio);
}
function quiz_test()
{
$ses_id = $this->session->userdata('lastids');
$sql = "SELECT q_id, answer_id, time_taken FROM results WHERE id='$ses_id'";
$query = $this->dbb->query($sql);
$result = $query->result();
return $result;
}
function update_result($data){
$ses_id = $this->session->userdata('lastids');
$this->db->where('id',$ses_id);
$this->db->update('results',$data);
}
when i run it nothing happened,not showing any error where do i mistake?
pls help me what am i doing wrong
First of all - i think you've a major problem in your DB structure
Normalize your Data
You should prevent to store your information in the table like that.
It should be possible to normalize your data properly. If you dont know
how to do that the following link could be interesting:
Normalization in MYSQL
However a possible solution would be to structure your data:
In order to do that - create a save Method in your Model to split between update and insert - this model could look like
class Quiz_Models
{
private $arrPostData;
public function save($arrPostData = false)
{
$this->arrPostData = (!$arrPostData) ? $this->input->post() : $arrPostData;
$id = $this->session->userdata("lastids");
if ($id)
{
$query = $this->db
->select("*")
->from("results")
->where("id",$id)
->get();
if ($query->num_rows() == 1)
{
$this->update($query->row(0));
}
else return false;
}
else
{
$this->insert();
}
if ($this->arrPostData['question_no'] == 10) $this->session->unset_userdata("lastids");
}
private function update($objData)
{
$objCollection = new Quiz_Collection();
$objCollection->userId = $objData->userid;
$objCollection->id = $objData->id;
$arrData = explode($objData->q_id);
foreach($arrData AS $key => $quizId)
{
$objQuiz = new stdClass();
$objQuiz->q_id = $quizId;
$objQuiz->answer_id = explode($objData->answer_id)[$key];
$objQuiz->time_taken = explode($objData->answer_id)[$key];
$objCollection->append($objQuiz);
}
$objQuizFromPost = new stdClass();
$objQuizFromPost->q_id = $this->arrPostData["questionid"];
$objQuizFromPost->answer_id = $this->arrPostData['AnswerID'];
$objQuizFromPost->time_taken = $this->arrPostData['timetaken'];
$objCollection->addQuizFromPost($objQuizFromPost);
$this->db
->where("id",$objCollection->id)
->update("results",$objCollection->getDbData());
}
private function insert()
{
$objCollection = new Quiz_Collection();
$objCollection->userId = $this->arrPostData['user_id'];
$objQuizFromPost = new stdClass();
$objQuizFromPost->q_id = $this->arrPostData["questionid"];
$objQuizFromPost->answer_id = $this->arrPostData['AnswerID'];
$objQuizFromPost->time_taken = $this->arrPostData['timetaken'];
$objCollection->addQuizFromPost($objQuizFromPost);
$this->db->insert("results",$objCollection->getDbData());
$this->session->set_userdata("lastids", $this->db->insert_id());
}
}
as an addition you need a Collection Object (put this below your model)
class Quiz_Collection extends Array_Object
{
public $userId = 0;
public $id = 0;
public function addQuizFromPost($objQuiz)
{
if (intval($objQuiz->q_id) > 0)
{
foreach($this AS $key => $obj)
{
if ($obj->q_id == $objQuiz->q_id)
{
$this->offsetSet($key, $objQuiz);
return true;
}
}
$this->append($objQuiz);
return true;
}
return false;
}
public function sortQuizData($objA, $objB)
{
if ($objA->q_id == $objB->q_id) return 0;
return ($objA->q_id < $objB->q_id) ? -1 : 1;
}
public function getDbData()
{
$this->uasort(array($this,"sortQuizData"));
$arrData = $this->getArrayCopy();
$arrDbData = [
"userid" => $this->userId,
"q_id" => implode(array_map(function($obj){ return $obj->q_id;},$arrData),","),
"answer_id" => implode(array_map(function($obj){ return $obj->answer_id;},$arrData),","),
"time_taken" => implode(array_map(function($obj){ return $obj->time_taken;},$arrData),","),
];
return $arrDbData;
}
}
pS: this is just an instruction how you can do that in a proper way. Pls study this code. If you still don't understand whats going on, feel free to ask.
I am taking data from many tables. I want to display many objects in different places. I got the data from data base, but I want to put the data into an array for useful purpose, but it's not working.
This my controller code:
public function compare_by_business_sectors() {
//print_r($this->input->post());exit;
if ($this->input->post())
{
$solution_array = array();
//print_r (json_encode($business_sectors)); exit;
$business_sectors=$this->home_model->compare_business_sectors_data($this->input->post());
$tab_child_id = "";
$id="";
foreach ($business_sectors as $key=>$sectors) {
$solution_array[1]=$sectors->solution_name;
$solution_array[2]=$sectors->description;
$solution_array[3]=$sectors->vendor_name;
$solution_array[4]=$sectors->video_presentation;
$solution_array[5]=$sectors->start_free_trail;
$solution_array[6]=$sectors->hardware_package;
$solution_array[7]=$sectors->pos_market_rating;
//$solution_array[$sectors->field_id] = $sectors->value;
$id = "solution".$sectors->tab_child_id;
if ($tab_child_id != $sectors->tab_child_id) {
$id = array();
$id[$sectors->field_id] = $sectors->title;
}
else if ($tab_child_id == $sectors->tab_child_id) {
$id[$sectors->field_id] = $sectors->title;
}
}
//$solution_array[$id]= $id;
}
print_r($id);
//$this->load->view('compare_by_business_sectors.php');
}
This is my model code:
public function compare_business_sectors_data($sectorid) {
$query = $this->db->select('solutions.*,solution_tabs_child_fields.field_id,solution_tabs_child_fields.tab_child_id,solution_tabs_child_fields.title')
->from('solutions')
//->join('solutions', 'business_sector.sector_id = solutions.business_sector_id',"left")
->join('solution_features','solutions.entry_id = solution_features.entry_id',"left")
->join('solution_tabs_child_fields','solution_features.field_id = solution_tabs_child_fields.field_id')
->where('solutions.business_sector_id', $sectorid['id'])
->get();
return $query->result();
//print_r($query->result());exit;
}
change it as follow and try.
$id_string = "";
$id_array = array();
foreach ($business_sectors as $key=>$sectors) {
$solution_array[1]=$sectors->solution_name;
$solution_array[2]=$sectors->description;
$solution_array[3]=$sectors->vendor_name;
$solution_array[4]=$sectors->video_presentation;
$solution_array[5]=$sectors->start_free_trail;
$solution_array[6]=$sectors->hardware_package;
$solution_array[7]=$sectors->pos_market_rating;
//$solution_array[$sectors->field_id] = $sectors->value;
$id_string = "solution".$sectors->tab_child_id;
if ($tab_child_id != $sectors->tab_child_id) {
$id[$sectors->field_id] = $sectors->title;
}
else if ($tab_child_id == $sectors->tab_child_id) {
$id[$sectors->field_id] = $sectors->title;
}
}
print_r($id_string);
print_r($id_array);
First you are assigning string value to $id then, $id will convert to array only if first if() statement execute other wise it will not be a string. So to overcome from this keep $id_array before for loop and you can capture string in another variable.
Am working on a student portal, below is the code i used for students position but, every user keeps getting 1st position. Every student seems to have 1st position, when they check their results from the front view. Cant seem to figure out where the problem is from in the code
function get_position($student, $class, $session, $term){
$this->db->select('*');
$this->db->from('result');
$this->db->where(array( 'class_id'=>$class, 'Session'=>$session, 'Term'=>$term));
$this->db->order_by('Total', 'asc');
$other_results = $this->db->get()->result_array();
$this->db->select("*");
$this->db->from('result');
$this->db->where(array('class_id'=> $class, 'Session'=>$session, 'Term'=>$term, 'StudentID'=>$student ));
$student_result = $this->db->get()->result_array();
$student_total = $this->get_student_total($student_result);
$position =1;
foreach($other_results as $res){
if($student_total < $res['Total']){
$position++;
}
}
return $position;
}
function get_student_total($result){
$total = 0;
foreach($result as $res){
$total+= $res['Total'];
}
return $total;
}
}
?>
I am assuming that the result table may have many records for a given studentID. Several test scores (Totals) for each student during the term right?
This should do the trick
public function get_position($student, $class, $session, $term)
{
//I like to use db method chaining.
$ranking = $this->db->select('StudentID')
->select_sum('Total', 'sumScore')
->from('result')
->where(array('class_id' => $class, 'Session' => $session, 'Term' => $term))
->group_by('StudentID')
->order_by('sumScore', 'desc')
->get()->result_array();
//The code above retrieves results from a query statement that looks like this:
//SELECT `StudentID`, SUM(`Total`) as sumScore
//FROM `result` where `class_id` = $class and `Session` = $session and `Term` = $term
//GROUP BY `StudentID`
//order by `sumScore` desc
$position = 1;
foreach($ranking as $rank)
{
if($rank['StudentID'] !== $student)
{
++$position;
}
else
{
return $position;
}
}
return NULL; //to indicate studentID was not found
}
During my coding I really got stuck into this problem.
I ran a foreach loop and for every item I had to get a certain value from a function.
But I got only one returned. I could not figure out what was happening. I hope you guys surely will.
Below is the short version of my program.
Database structure is given at last.
<?php
function opendb() {
mysql_connect("localhost", "root", "root");
mysql_select_db("something_db");
}
function sql_query($sql) {
$datas = array();
if ($res = mysql_query($sql)) {
$x = 0;
while ( $data = mysql_fetch_assoc($res) ) {
$datas[$x] = $data;
$x += 1;
}
}
return $datas;
}
function get_parent_id($table, $parent, $cid) {
// cid=>child id
$sql = "SELECT * FROM $table WHERE id=$cid";
$datas = sql_query($sql);
$pid = $datas[0]['parent'];
$p_id = $datas[0]['id'];
if ($pid != 0) {
get_parent_id($table, $parent, $pid);
} else {
return $p_id;
}
}
opendb();
$datas_pkg = sql_query("SELECT * FROM tbl_packages WHERE 1");
foreach ( $datas_pkg as $data_pkg ) {
echo $data_pkg['destination_id'] . '-->';
echo $parent_id = get_parent_id('tbl_destinations', 'parent', $data_pkg['destination_id']);
echo '<br/>';
}
?>
Database structure..
tbl_destinations
+--------+-------------------------+-----------+
| id(int)|destination_name(Varchar)|parent(int)|
+--------+-------------------------+-----------+
tbl_packages
+-------+---------------------+-------------------+
|id(int)|package_name(varchar)|destination_id(int)|
+-------+---------------------+-------------------+
If I did not clear my question please let me know so that I can help you to help me.
if($pid!=0)
{
get_parent_id($table,$parent,$pid);
}
You call the function, but never use its value.