I am having a small django view that responds with an dict, on an ajax call . Here is the code below :
Ajax Call :
var getdata = function(e){
var id = this.id;
console.log(id);
$.ajax({
url:'/editcontact/',
method :'POST',
data :{
'name' : id,
},
success:function(){
console.log("success");
},
error:function(status){
console.log (status);
}
});
};
$("button").on('click',getdata);
views.py
if request.is_ajax:
print "comes here"
value1 = request.GET['name']
print value1
data = dbs.objects.filter(cname=value1)
print data
return render_to_response("editcontact.html",{"data":data}, context_instance=RequestContext(request))
the code is executing till print data, but the render_to_response is not working.
I will suggest you to return response in json format. that will solve your problem.
you can take help from below given code and can change your views.py
import json
if request.is_ajax:
print "comes here"
value1 = request.GET['name']
print value1
data = dbs.objects.filter(cname=value1)
json = simplejson.dumps(data)
return HttpResponse(json, mimetype='application/json')
Related
i am creating a simple like button with ajax, i have followed the tutorial but it seems, that i am missing something, i am not getting any error either in the console in my django terminal but when i click the button no data get sent, evrything just remains the same way, and this is not what i am expecting, i know i am missing something somewhere and i cannot really tell where this error is coming from.
views.py
#login_required
def like(request):
if request.POST.get("action") == 'post':
result = ""
id = int(request.POST.get('courseid'))
course = get_object_or_404(Course, id=id)
if course.like.filter(id=request.user.id).exists():
course.like.remove(request.user)
course.like_count -= 1
result = course.like_count
course.save()
else:
course.like.add(request.user)
course.like_count += 1
result = course.like_count
course.save()
return JsonResponse({'result': result})
urls.py NOTE:I don't know if i need a slug in this url path
path('like/', views.like, name="like"),
base.html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
course-detail.html
<li><button id="like-button" value="{{course.id}}">like</button><span id="like-count">{{course.llke_count}}</span></li>
<script type="text/javascript">
$(document).on("click", '#like-button', function(e){
e.preventDefault()
$.ajax({
type: 'POST',
url: '{% url 'course:like' course.slug %}',
data: {
courseid: $('#like-button').val(),
csrfmiddlewaretoken: $("input[name=csrfmiddlewaretoken]").val(),
action: 'post'
},
success: function(json){
document.getElementById("like-count").innerHTML = json['result']
console.log(json)
},
error: function (xhr, errmsg, err)
console.log(xhr)
console.log(errmsg)
console.log(err)
})
})
</script>
this is all the code i have written for the functionality, if there is any other thing to be provided i will update the question
UPDATE AFTER FIRST ANSWER
#####################################################################
Now when i click the like button is does show an visible error but the like count now shows undefined and in my chrome dev tools is shows failed to load response data because this request was redirected
Update your code like this and I've doubt about your like table provide that inside your question.
inside your views.py
#login_required
def like(request):
if request.method == 'POST':
result = ""
course_id = int(request.POST.get('courseid'))
course = get_object_or_404(Course, id=course_id)
if course.like.filter(id=request.user.id).exists():
course.like.remove(request.user)
course.like_count -= 1
result = course.like_count
course.save()
else:
course.like.add(request.user)
course.like_count += 1
result = course.like_count
course.save()
return JsonResponse({'result': result})
inside your course-detail.html
<script type="text/javascript">
$("#like-button").on("click", function (e) {
e.preventDefault()
$.ajax({
type: 'POST',
url: "{% url 'course:like' %}",
data: {
courseid: $('#like-button').val(),
csrfmiddlewaretoken: "{{ csrf_token }}",
},
success: function (json) {
document.getElementById("like-count").innerHTML = json['result']
console.log(json)
},
error: function (xhr, errmsg, err) {
console.log(xhr)
console.log(errmsg)
console.log(err)
}
})
})
</script>
Note :
You don't have to check for action instead you can check for method eg. request.method.
You've provided wrong url inside your ajax call '{% url 'course:like' course.slug %}' it should be '{% url 'course:like' %}' without passing slug.
Do not use id as avariable because it will conflict with python id() function, you can check for all available built-in functions in python here.
I have a model that references other models, I am trying to save data using ajax
Example:
class Friend(models.Model):
name = ...
class Main(models.Model):
name = ....
friend = models.ForeignKey(Friend, on_delete=models.CASCADE)
All body comes from ajax(fetch) request
I have a table (html), and add data to cells, then with the
enter event, send data.
Like this:
input.addEventListener("keyup", function (e) {
//in this scenario I already have the whole row
// get full_row `row_data`
post_ajax = {
method: "POST",
headers: {
"X-CSRFToken": crf_token, // I get it with a regular expression
"Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
Accept: "application/json",
},
body: JSON.stringify(row_data),
};
fetch("my_url", post_ajax)
.then((res) => res.json())
.catch((error) => console.error("Error:", error))
.then((response) => console.log("Success:", response));
});
My view function
def save_post(request):
if request.is_ajax and request.method == "POST":
body_unicode = request.body.decode('utf-8')
data = json.loads(body_unicode)
print('here the data arrives',data)
# here the data arrives {'name': 'Ale', 'friend_id': 22}
Main.objects.create(name=data['name'], friends=data['friend_id'])
return JsonResponse({"instance": data}, status=200)
return JsonResponse({"error": ""}, status=400)
This is the error
raise TypeError("%s() got an unexpected keyword argument '%s'" %
(cls.__name__, kwarg))
TypeError: Main() got an unexpected keyword argument 'Friends'
Any idea or suggestion?
EDIT:
When you are creating the Main object, try making the "friend" attribute an object, like this:
friend = Friend.objects.get(id=data['friend_id'])
Main.objects.create(name=data['name'], friend=friend)
Also, the main issue appears to be you are calling the column "friends" but it should be "friend" when you are creating the Main object.
This:
Main.objects.create(name=data['name'], friends=data['friend_id'])
Should be:
Main.objects.create(name=data['name'], friend=data['friend_id'])
PREVIOUS ANSWER:
Assuming you are using JQuery in the template to send an AJAX request, since you did not specify.
In your urls.py:
...
path('/api/post_friend/', post_friend_api, name="post_friend_api"),
...
In your template :
<script type="text/javascript">
$("#myBurron").click(function(){
var csrfToken = $( "input[name='csrfmiddlewaretoken']"); // assuming this is a form
var friend_name = $("#friend_name").val();
$.ajax({ url: '{% url 'post_friend_api' %}',
type: "POST",
dataType: "json",
data: {'friend':friend_name, 'csrfmiddlewaretoken':csrfToken.val()},
cache: false
}).done(function(data) {
if (data.result === true){
alert(data.message);
}
});
});
});
</script>
In your views.py:
from django.http import JsonResponse
def post_friend_api(request):
data = {}
if request.POST.get('friend', None) is not None:
friend_name = request.POST.get('post_note')
# save the object and indicate success
data['result'] = True
data['message'] = "Friend saved successfully"
...
if request.is_ajax():
return JsonResponse(data)
else:
return HttpResponseBadRequest()
When you are sending data via POST don't forget to pass along your CSRF token as in the example above. This assumes you have a form on the page you can get it from, otherwise you can use something like this to get it:
function getCookie(name) {
var cookieValue = null;
if (document.cookie && document.cookie !== '') {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var cookie = cookies[i].trim();
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) === (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}
var csrftoken = getCookie('csrftoken');
If you don't want to deal with the CSRF token, you can mark the view with the #csrf_exempt decorator and remove the 'csrfmiddlewaretoken' data element from the Ajax call in the template, but it may not be ideal or the most secure. An example of that:
from django.views.decorators.csrf import csrf_exempt
from django.http import JsonResponse
#csrf_exempt()
def post_note_api(request):
...
If you post more details I can update my answer.
I have a function that uses an AJAX request to fetch data from a view and returns data in the form of a list that is in the model.
In my model the data is entered with a new line character, however in my jQuery output the \n character is ignored. Can anyone help?
Data in Model object:
ankit: Hi govind!
go358938: Hi Ankit, how are you ?
Data passed as list to jquery:
{ 'list': 'ankit: Hi govind!\r\ngo358938: Hi Ankit, how are you ?' }
Data visible in Modal :
ankit: Hi govind! go358938: Hi Ankit, how are you ?
$('#chatbox').on('show.bs.modal', function (event) {
var button = $(event.relatedTarget)
var recipient = button.data('whatever')
$.ajax({
url: "{% url 'fetcher' %}",
data: {
'search': recipient
},
dataType: 'json',
success: function (data) {
list = data.list;
$('#chatbox').find('.modal-body').html(list);
}
});
});
Views.py
def fetcher(request):
if request.is_ajax():
name = User.objects.get(username=request.GET.get('search', None))
b = ChatMessage.objects.get(user2 = name)
print(b.message)
data = {
'list': b.message,
}
return JsonResponse(data)
First, what do you mean with "jquery"-output?
Your output in the HTML as Website? Well, "\n" is not considered there as "break" but <br/>.
Your html file technically looks like this:
<div>\n
<p>Whatever</p>\n
<p>Something different</p>\n
</div>
You don't want to count every \n as <br/>.
You have two options:
Print your results inside a html element which supports \n (e.g. <pre>, <code> and <textarea> do) or replace your \n with a <br/>).
Solution 1:
<textarea class="modal-body-content">
This is a new line\nhere
</textarea>
$('#chatbox').find('.modal-body-content').html(list);
Solution 2:
$('#chatbox').find('.modal-body').html(list.replace(/\n/g, '<br/>');
I am trying to delete a job at the click of a button and redirect to a different page. The deletion works but the redirection does not. My code is as follows:
views.py:
#login_required
def delete_job(request):
job_id = request.GET['Jobid']
job = Job.objects.get(pk=job_id)
try:
job.delete()
#return render(request, 'main/communitypartner_dash.html', {'form':form,'job' : job})
#return redirect('user_dash')
return HttpResponseRedirect('main/communitypartner_dash.html')
#return HttpResponseRedirect(reverse('user_dash'))
#jobs = user.jobs.all()
#return render_to_response('main/communitypartner_dash.html')
except Exception as e:
return HttpResponse("deletion not successful")
#return render(request, 'main/communitypartner_dash.html', {'form':form,'job' : job})
url.py:
url(r'^job/job_delete/$', views.delete_job),
html:
<button type="button" class="btn btn-primary" onclick="doDelete()">Dissolve</button>
<script>
function doDelete(){
$.ajax({
url: '/job/job_delete/',
data: {
'csrfmiddlewaretoken': $('input[name="csrfmiddlewaretoken"]').val(),
'Jobid': {{job.id}}
},
dataType: 'json',
complete: function (response) {
// $('#status').html(response.responseText);
},
error: function () {
// $('#status').html('Bummer: there was an error!');
},
});
return false;
}
I tried all the ways that are commented out in the try section of views.py. Please help. Thanks
The following will work
from django.http import JsonResponse
# codes here
job.delete()
return JsonResponse({'url':'main/communitypartner_dash.html'}) # whatever the url is
# or return JsonResponse({'url':reverse('url_name',kwargs={"arg":arg})})
js
// codes here
complete: function (response) {
window.location.href = response.url
},
error: function () {
// $('#status').html('Bummer: there was an error!');
},
I'm making a POST request from AngularJS to Python.
I started with an JavaScript example. It works properly returning all the values.
However, when I try to do it from AngularJS I'm not able to read the value of the variable posted.
JAVASCRIP EXAMPLE THAT WORKS PROPERLY (I'm able to get the value (Mike) back of Name):
JS code
<script language="Javascript">
function asyncChange()
{
var request;
if (window.XMLHttpRequest) {
request = new window.XMLHttpRequest();
} else {
// Versiones antiguas de Internet Explorer.
request = new window.ActiveXObject("Microsoft.XMLHTTP");
}
request.open("POST","nctest.py" , true);
request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
request.send("Name=Mike");
request.onreadystatechange = function()
{
if (request.readyState == 4 && request.status == 200)
{
document.getElementById("myLabel").innerHTML = "Hello " + request.responseText + "!";
}
}
}
</script>
nctest.py
#!/usr/bin/python
import cgi
input = cgi.FieldStorage()
print "Content-type: text/html\n\n"
print "input[Pe].value: "
print input["Pe"].value
ANGULARJS DOESN'T WORK PROPERLY (I'm not able to get the value (Mike) back of Name):
Angularjs code:
(function(){
'use strict'
var sectest= {
controller:sectestCtrl,
templateUrl:'app/components/component_test/test.html',
}
angular
.module('myapp')
.component('secTest',sectest);
function sectestCtrl($http){
var prac= this;
prac.method = 'POST';
prac.url = 'nctest.py';
prac.data = {Name : 'Mike'};
prac.data_answer
prac.headers = { 'Content-Type': 'application/x-www-form-urlencoded' };
prac.sendHTML = send;
function send(){
prac.code = null;
prac.response = null;
$http({method: prac.method, headers: prac.headers, url: prac.url, data: $.param(prac.data)}).
then(function(response) {
prac.status = response.status;
prac.data_answer = response.data;
console.log("OK prac.data_answer: ", prac.data_answer)
}, function(response) {
prac.data_answer = response.data || 'Request failed';
prac.status = response.status;
});
};
}
})();
nctest.py code
#!/usr/bin/python
import json
import cgi
input = cgi.FieldStorage()
print "Content-type: text/html\n\n"
print input["Name"].value
The problem is that prac.data_answer prints blank value.
I have already try with different headers for both angularjs and python codes but none seems to work:
prac.headers = { 'Content-Type': 'application/json' };
prac.headers = { 'Content-Type': 'application/x-www-form-urlencoded' };
prac.headers = { 'Content-Type': 'text/html\n\n' };
Many thanks.
There are 2 separate issues you're trying to address. Server (CGI) & client(angularjs). First check to see that you are receiving the data over the network - using Chrome developer tools, under the Network tab. If so, there's no need to change the Content-Type to json, since angular by default assumes all http data is in json format.
I don't think you need all those attributes for a post request. Seems like an overkiller when it can be simpler. Try this:
$http.post(url, data).then(function(response){
console.log(response.data);
});