I am trying to pass the form field values to a php function located into a file. The problem is that I can't understand how to pass that serialized form data to the function from this ajax to a function in php.
$('#insert_news').submit(function(event) {
event.preventDefault();
var form = $('#insert_news').serialize();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: {
action: 'insert_news',
$('#insert_news').serialize(); // how do I add this data here?
},
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
This ajax passed the values to the file ajax.php right beyond. And from ajax.php is called the function located in functions.php.
ajax.php
if (isset($_POST['action']) && $_POST['action'] == 'insert_news') {
$cp->insert_into_table('newss', array(
'NewsTitle' => $_POST['title'],
'NewsDescrption' => $_POST['description'],
'Date' => date('Y-m-d H:i:s'),
'status' => '1'
)
);
}
function.php
public function insert_into_table($table_name, array $data){
foreach($data as $col=>$value) {
$cols[] = $col;
$values[] = '\''.$value.'\'';
}
$cols = implode(', ', $cols);
$values = implode(', ', $values);
$this->db->query("INSERT INTO $table_name ($cols) VALUES ($values)");
echo "INSERT INTO $table_name ($cols) VALUES ($values)";
}
The issue is serialize() produces a URL encoded key value paired string, so you can't mix that with your data object.
You can use serializeArray() to get an array of objects, representing the form elements, then iterate over them and add them to a data object:
var data = { action: 'insert_news' };
$.each($('#insert_news').serializeArray(), function(){
data[this.name] = this.value;
});
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: data,
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
Side note: your PHP code is vulnerable to SQL Injection. Consider using a Prepared Statement instead of concatenating user input into the SQL.
You can pass serialized data via ajax to a function the way you are doing but your code needs slight modification.
$('#insert_news').submit(function(event) {
event.preventDefault();
var form = $('#insert_news').serialize();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: {
action: 'insert_news',
serializedData: form // use variable to assign data here
},
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
I think you can use alternate like this
First : add hidden input for action on your form
<input type="hidden" name="action" value="insert_news"/>
Then your ajax post like this
$('#insert_news').submit(function(event) {
event.preventDefault();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: $(this).serialize(), // $(this) is from <form id="insert_news">
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
And then use print_r on your ajax.php
print_r($_POST);
$('#insert_news').submit(function(event) {
var name = $("#t1").val();
var pass = $("#t2").val(); //add more var as u need
var key = 0;
var formName = new FormData();
formName.append(key++,name)
formName.append(key++,pass) //append the the var to formdata
$.ajax({
url : 'includes/ajax.php',
dataType : 'text',
cache : false,
contentType : false,
processData : false,
data : formName,
type : 'post',
success : function(data){
$('#message').html(data).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
this works fine for me :-)
Related
I have a custom database that I want to insert items into from a WordPress front-end interface. When I submit the form, I can get the JSON values just fine, but for some reason, it doesn't seem to be inserting into the database. I do not get any error messages.
Here's what I'm doing (please note that I am testing the name variable, hence why it's not pulling from an input field):
I am using the auto_increment_id value from SHOW TABLE STATUS to create the commmittee_id value, and would prefer for that to be inserted as the primary key.
JavaScript
$(".addButton").click(function() {
var commitAddID = $(this).attr('id');
var name = "1name";
var date_created = $("#addCommCreated_input_"+commitAddID).val();
var status = $("#addCommStatus_input_"+commitAddID).val();
var disbanded = $("#addCommDisbanded_input_"+commitAddID).val();
var dataString = {
'action': 'addCommittee',
'committee_id': commitAddID,
'old_id': commitAddID,
'name': name,
'description': '',
'date_created': date_created,
'status': status,
'disbanded': disbanded
};
jQuery.ajax({
url: addCommittee.ajaxurl,
type: "POST",
data: dataString,
dataType: "json",
success: function (response) {
$("#name_"+commitAddID).html(name);
$("#created_"+commitAddID).html(date_created);
$("#status_"+commitAddID).html(status);
$("#disbanded_"+commitAddID).html(disbanded);
}
});
functions.php
// set up AJAX call for addCommittee
add_action('wp_ajax_addCommittee', 'addCommittee');
add_action('wp_ajax_nopriv_addCommittee', 'addCommittee');
function addCommittee() {
global $wpdb;
$committee_id = esc_sql($_POST['committee_id']);
$old_id = esc_sql($_POST['old_id']);
$name = esc_sql($_POST['name']);
$created = esc_sql($_POST['date_created']);
$status = esc_sql($_POST['status']);
$disbanded = esc_sql($_POST['disbanded']);
$desc= esc_sql($_POST['description']);
$wpdb->insert('wp_bubu_committees',
array(
'old_id' => '',
'name' => $name,
'description' => '',
'date_created' => $created,
'status' => $status,
'disbanded' => $disbanded
)
);
exit();
}
I have also localized the AJAX URL in functions.php. Any ideas?
Edit: Updated the code-- the action was set to the . I now am able to insert into the database, but it only allows me to insert one item. Attempting to insert additional items returns nothing, but the data does post to JSON.
Remove the data type json.
jQuery.ajax({
url: addCommittee.ajaxurl,
type: "POST",
data: dataString,
success: function (response) {
$("#name_"+commitAddID).html(name);
$("#created_"+commitAddID).html(date_created);
$("#status_"+commitAddID).html(status);
$("#disbanded_"+commitAddID).html(disbanded);
alert(response);
}
});
I have a view file which contains a button (link):
<a href id="savebutton" class="btn btn-warning">Save</a>
Somewhere else in this view I have also declared some hidden fields in a form that contain my userid and vacancyid.
echo form_input(dataHiddenArray('userid', $this->auth_user_id));
echo form_input(dataHiddenArray('vacancyid', $vacancydetails[0]->vacancy_id));
These hidden fields translate to:
<input type="hidden" value="2" class="userid">
<input type="hidden" value="1" class="vacancyid">
Now I want to be able to send these values to my controller (via AJAX) so that I can insert them in my database.
My JS file looks like this:
$(function() {
var postData = {
"userid" : $("input.userid").val(),
"vacancyid" : $("input.vacancyid").val()
};
btnSave = $('#savebutton'),
ajaxOptions = {
cache: false,
type: 'POST',
url: "<?php echo base_url();?>dashboard/vacancy/saveVacancy",
contentType: 'application/json',
dataType: 'text'
};
btnSave.click(function (ev) {
var options = $.extend({}, ajaxOptions, {
//data : $(this).closest('form').serialize()
data: postData
});
ev.preventDefault();
// ajax done & fail
$.ajax(options).done(function(data) {
alert(data); // plausible [Object object]
//alert(data[0]); // plausible data
console.log(data); // debug as an object
}).fail(function (xhr, status, error) {
console.warn(xhr);
console.warn(status);
console.warn(error);
});
});
And my controller looks like this (it is not doing much because it doesn't return anything):
public function saveVacancy() {
//$this->load->model('user/usersavedvacancies_model');
/*$data = array(
'userid' => $this->input->post('userid'),
'vacancyid'=>$this->input->post('vacancyid')
);*/
echo $this->input->post('userid');
}
Minor changes to javascript
$(function () {
var postData = {
"userid": $("input.userid").val(),
"vacancyid": $("input.vacancyid").val()
};
btnSave = $('#savebutton'),
ajaxOptions = {
type: 'POST',
url: "<?php echo base_url('dashboard/vacancy/saveVacancy);?>",
dataType: 'json'
};
btnSave.click(function (ev) {
var options = $.extend({}, ajaxOptions, {
//data : $(this).closest('form').serialize()
data: postData
});
ev.preventDefault();
// ajax done & fail
$.ajax(options).done(function (data) {
console.log(data); // debug as an object
if (data.result === 'success') {
alert("Yeah, it saved userid " + data.userid + " to vacancy id " + data.vacancyid);
}
}).fail(function (xhr, status, error) {
console.warn(xhr);
console.warn(status);
console.warn(error);
});
});
});
In the controller
public function saveVacancy()
{
//assigning a more useable object name to the model during load
$this->load->model('user/usersavedvacancies_model', 'save_vacancy');
$data = array(
'userid' => $this->input->post('userid'),
'vacancyid' => $this->input->post('vacancyid')
);
//send data to model and model returns true or false for success or failure
$saved = $this->save_vacancy->doSaveId($data); //yes, I made up the method, change it
$result = $saved ? "success" : "failed";
echo json_encode(array('result' => $result, 'userid' => $data['userid'], 'vacancyid' => $data['vacancyid']));
}
You need to understand that $.ajax takes two methods i.e GET and POST and from the documentation you can see that default method is GET so Since you have not defined method as GET/POST probably the method is taken GET so first change define ajax method to POST as well as you need to be clear about dataType of ajax it may be one of JSON/html and default is json.
$.ajax({
method: "POST",
url: url,
data: data,
dataType:'html'
});
I guess this helped you can learn detail from
Learn more.
I'm trying to grasp more than I should at once.
Let's say I have 2 inputs and a button, and on button click I want to create a json containing the data from those inputs and send it to the server.
I think this should do it, but I might be wrong as I've seen a lot of different (poorly explained) methods of doing something similar.
var Item = function(First, Second) {
return {
FirstPart : First.val(),
SecondPart : Second.val(),
};
};
$(document).ready(function(){
$("#send_item").click(function() {
var form = $("#add_item");
if (form) {
item = Item($("#first"), $("#second"));
$.ajax ({
type: "POST",
url: "post.php",
data: { 'test' : item },
success: function(result) {
console.log(result);
}
});
}
});
});
In PHP I have
class ClientData
{
public $First;
public $Second;
public function __construct($F, $S)
{
$this->First = F;
$this->Second = S;
}
}
if (isset($_POST['test']))
{
// do stuff, get an object of type ClientData
}
The problem is that $_POST['test'] appears to be an array (if I pass it to json_decode I get an error that says it is an array and if I iterate it using foreach I get the values that I expect to see).
Is that ajax call correct? Is there something else I should do in the PHP bit?
You should specify a content type of json and use JSON.stringify() to format the data payload.
$.ajax ({
type: "POST",
url: "post.php",
data: JSON.stringify({ test: item }),
contentType: "application/json; charset=utf-8",
success: function(result) {
console.log(result);
}
});
When sending an AJAX request you need to send valid JSON. You can send an array, but you need form valid JSON before you send your data to the server. So in your JavaScript code form valid JSON and send that data to your endpoint.
In your case the test key holds a value containing a JavaScript object with two attributes. JSON is key value coding in string format, your PHP script does not not how to handle JavaScript (jQuery) objects.
https://jsfiddle.net/s1hkkws1/15/
This should help out.
For sending raw form data:
js part:
$.ajax ({
type: "POST",
url: "post.php",
data: item ,
success: function(result) {
console.log(result);
}
});
php part:
..
if (isset($_POST['FirstPart']) && isset($_POST['SecondPart']))
{
$fpart = $_POST['FirstPart'];
$spart = $_POST['SecondPart'];
$obj = new ClientData($fpart, $spart);
}
...
For sending json string:
js part:
$.ajax ({
type: "POST",
url: "post.php",
data: {'test': JSON.stringify(item)},
success: function(result) {
console.log(result);
}
});
php part:
..
if (isset($_POST['test']))
{
$json_data = $_POST['test'];
$json_arr = json_decode($json_data, true);
$fpart = $json_arr['FirstPart'];
$spart = $json_arr['SecondPart'];
$obj = new ClientData($fpart, $spart);
}
...
Try send in ajax:
data: { 'test': JSON.stringify(item) },
instead:
data: { 'test' : item },
I'm building a search app which uses Ajax to retrieve results, but I'm having a bit of trouble in how exactly to implement this.
I have the following code in Javascript:
if (typeof tmpVariable == "object"){
// tmpVariable is based on the query, it's an associative array
// ie: tmpVariable["apple"] = "something" or tmpVariable["orange"] = "something else"
var sendVariables = {};
sendVariables = JSON.stringify(tmpVariable);
fetchData(sendVariables);
}
function fetchData(arg) {
$.ajaxSetup ({
cache: false
});
$.ajax ({
type: "GET",
url: "script.php",
data: arg,
});
}
And within script.php:
<?php
$data = json_decode(stripslashes($_GET['data']));
foreach($data as $d){
echo $d;
}
?>
What is it that I'm doing wrong?
Thanks.
Your PHP script is expecting a GET var called 'data'. With your code you're not sending that.
Try this:
if (typeof tmpVariable == "object"){
var data = {data : JSON.stringify(tmpVariable)}; // Added 'data' as object key
fetchData(data);
}
function fetchData(arg) {
$.ajax ({
type: "GET",
url: "script.php",
data: arg,
success: function(response){
alert(response);
$("body").html(response); // Write the response into the HTML body tag
}
});
}
I have array containg image path ,
GenerateReport[0] ="../images/Desert1.jpg"
GenerateReport[1] ="../images/Desert2.jpg"
GenerateReport[2] ="../images/Desert3.jpg"
GenerateReport[3] ="../images/Desert4.jpg"
GenerateReport[4] ="../images/Desert5.jpg"
I am trying to pass this array with following code,
$.ajax({
type: "POST",
url: "generatePdf.php",
data: {
genRep: "sample value"
},
success: function(data) {
alert(data);
console.log('getting '+data);
}
});
sample value is passed successfully , but how can i pass array to ajax and use it on another page?? i tried passing array and using with below code but it is not working
$data1 = $_REQUEST['genRep'];
echo "tested".$data1[0];
Try like
genRep = [];
$.ajax({
type: "POST",
url: "generatePdf.php",
data: {
genRep: GenerateReport
},
success: function(data) {
alert(data);
console.log('getting '+data);
}
});
It will send your array as genRep
try to use json object. in object you can store your images path
var data=[]; // array
var data[0] = 'something';
var data[1] = 'something1';
var data = { 'name': name, 'email' : email, 'contact' : contact, 'type' : type, 'msg' : msg }; // object
$.ajax({
url : 'contact.php',
type : 'POST',
data : {contact:JSON.stringify(data)}, // for json object
data : {contact: data}, // for array
success : function (msg)
{
alert(msg);
}
})
contact.php
$info = $_POST['contact'];
$info = json_decode($info,true); // for json object
echo $info.name; // for json object
echo $info[0]; // will print something...
$arr = array();
$arr[0] = "Mark Reed";
$arr[1] = "34";
$arr[2] = "Australia";
echo json_encode ($arr);
use this on the php page
and use the following to get the output
success:function(msg){
id_numbers = JSON.parse(msg);
alert(id_numbers)
}
Try:
$.ajax({
url: "generatePdf.php",
type: 'POST',
data: form_data,
dataType:"json",
success: function(data) {
alert(data[0]);
}
On the PHP side, you'll be wanting to print:
print json_encode($photos);
Made Some Change
print json_encode(array("photolist"=>$photos));
Then on the server, you'd access these with:
data.photolist[0]; //First photo
I have tested it, this will definitely work !
JS:
var GenerateReport = [];
GenerateReport[0] ="../images/Desert1.jpg";
GenerateReport[1] ="../images/Desert2.jpg";
GenerateReport[2] ="../images/Desert3.jpg";
GenerateReport[3] ="../images/Desert4.jpg";
GenerateReport[4] ="../images/Desert5.jpg";
$.ajax({
type: 'POST',
url: 'generatePdf.php',
data: 'image_array='+GenerateReport,
success: function(msg) {
alert(msg);
}
});
generatePdf.php :
<?php
$image_string = $_POST['image_array'];
$image_array = explode(",", $image_string);
print_r($image_array);
?>
Then you can loop over the $image_array to get the values.
try this
GenerateReport[0] ="../images/Desert1.jpg"
GenerateReport[1] ="../images/Desert2.jpg"
GenerateReport[2] ="../images/Desert3.jpg"
GenerateReport[3] ="../images/Desert4.jpg"
GenerateReport[4] ="../images/Desert5.jpg"
corrected code:
var imagedata = '';
$.each(GenerateReport,function(index,value))
{
if(imagedata=='')
{
imagedata = imagedata +'image'+index+'='+value;
}
else
{
imagedata = imagedata +'&image'+index+'='+value;
}
});
$.ajax({
type: "POST",
url: "generatePdf.php",
data: imagedata //pass string imagedata
success: function(data) {
alert(data);
console.log('getting '+data);
}
});
imagedata should have sting like this:
image1=../images/Desert1.jpg&image2=../images/Desert2.jpg and so on
if(isset($_REQUEST['genRep']))
{
$data = $_REQUEST['genRep'];
print_r($data1);
echo "tested".$data1[0];
createPdf($data);
}
My code was correct , there was no value on index 0 , thats why it was not printing anything .My Mistake !!!