I am using django with VueJS. The data is updating properly in my database.
I need to accomplish two things:
Post the correct content to the field image_file.
Get the downloaded image file pasted onto the servers folder which is media/shop/images
My attempted code is as below:
models.py
...
image_file = models.ImageField(upload_to='shop/images/', blank=True, null=True)
urls.py
...
urlpatterns += [
url(r'^Post-Items-Axios$', myviews.Post_Items_Axios, name='Post-Items-Axios'),
]
views.py
#api_view(['GET', 'POST', 'PUT', 'DELETE'])
def Post_Items_Axios(request):
if request.method == 'POST':
data_itemfullhd = request.data['Item Name']
data_image_file = request.data['Item Image File']
td_items, created = Md_Items.objects.get_or_create(
itemfullhd = data_itemfullhd)
td_items.imagefl = data_imagefl
td_items.image_file = data_image_file
td_items.save()
data = { 'data_itemfullhd': data_itemfullhd }
return Response(data)
bm_home.html
<template id="product-edit">
<div>
<h2>Product details</h2>
<form method="post" enctype="multipart/form-data">{% csrf_token %}
<div class="form-group">
<label for="edit-name">Item Name</label>
<input class="form-control" id="edit-name" v-model="product.itemfullhd" required/>
</div>
<!-- Upload single Image files -->
<div class="form-group">
<label for="edit-imagefile">Image</label>
<input type="file" id="edit-imagefile" #change="onFileChanged" required/>
</div>
<button type="submit" class="btn btn-primary" #click.prevent="updateProduct">Save</button>
<a class="btn btn-dark"><router-link to="/product-list">Cancel</router-link></a>
</form>
</div>
</template>
Vue template
var ProductEdit = Vue.extend({
template: '#product-edit',
data: function () {
return {
product: findProduct(this.$route.params.product_id),
selectedImage: null,
};
},
methods: {
onFileChanged (event) {
this.selectedImage = event.target.files[0]
this.product.image_file = this.selectedImage.name
},
updateProduct: function () {
let product = this.product;
products[findProductKey(product.id)] = {
id: product.id,
itemfullhd: product.itemfullhd,
image_file: product.image_file,
};
const data = {
"Item Name": product.itemfullhd,
"Item Image File": product.image_file,
}
// const formData = new FormData()
// formData.append('image_file', this.selectedImage, this.selectedImage.name)
// axios.post('/biggmount_home/Post-Items-Axios', formData, data)
axios.post('/biggmount_home/Post-Items-Axios', data)
router.push('/product-list');
},
}
});
The changes below have given me the result that I was looking to achieve:
Vue template
var ProductEdit = Vue.extend({
template: '#product-edit',
data: function () {
return {
product: findProduct(this.$route.params.product_id),
selectedImage: null,
};
},
methods: {
onFileChanged (event) {
this.selectedImage = event.target.files[0]
},
updateProduct: function () {
let product = this.product;
const formData = new FormData()
formData.append('Item Image', this.selectedImage, this.selectedImage.name)
formData.append('Item Name', product.itemfullhd)
axios.post('/biggmount_home/Post-Items-Axios', formData)
router.push('/product-list');
},
}
});
views.py
#api_view(['GET', 'POST', 'PUT', 'DELETE'])
def Post_Items_Axios(request):
if request.method == 'POST':
data_itemfullhd = request.data['Item Name']
td_items, created = Md_Items.objects.get_or_create(
itemfullhd = request.data['Item Name'],
)
td_items.image_file = request.data['Item Image']
td_items.save()
return HttpResponse('Success!')
Related
I am using a modelForm to create post objects via ajax. The images field are part of the form but not passed to the fields of the Meta class because that will allow to save the post first and add the images uploaded after that. My issue is if I do use a regular view(without ajax) the request.FILES are being submitted correctly but when I use via ajax those files are not part of the request.files which renders an empty <MultiValueDict: {}> I don't really know why.
Here is my code.
def post(self, request, *args, **kwargs):
form = PostForm(request.POST or None, request.FILES or None)
result = {}
files = request.FILES
print(files)
if is_ajax(request=request) and form.is_valid():
print("the request is ajax and the form is valid")
title = form.cleaned_data.get("content", "")
print("Title ", title)
post_instance = form.save(commit=False)
post_instance.author = request.user
result['success'] = True
return JsonResponse(result)
$.ajax({
url: $("#CreatePostModal").attr("data-url"),
data:$("#CreatePostModal #createPostForm").serialize(),
method: "post",
dataType: "json",
success: (data) => {
if (data.success) {
setTimeout(() => {
$(e.target).next().fadeOut();
ResetForm('createPostForm', 'PreviewImagesContainer')
$("#CreatePostModal").modal('hide')
$(e.target.nextElementSibling).fadeOut()
alertUser("Post", "has been created successfully!")// alerting the user
}, 1000)
console.log(data.title)
} else {
$("#createPostForm").replaceWith(data.formErrors);
$("#PreviewImagesContainer").html("");
$("#CreatePostModal").find("form").attr("id", "createPostForm");
$(e.target.nextElementSibling).fadeOut()
};
$(e.target).prop("disabled", false);
},
error: (error) => {
console.log(error)
}
})
});
Here is the form file
class PostForm(forms.ModelForm):
images = forms.ImageField(
required=False,
widget=forms.ClearableFileInput(attrs={
'multiple': True,
})
)
class Meta:
model = Post
fields = ("content",)
widgets = {
"content": forms.Textarea(attrs={"placeholder": "Tell us something today....", "rows": 5, "label": ""})
}
again the imagefield has a manytomany relationship with the post model.
What I am doing wrong?
Here is the modal where I am rendering the form itself with crispy form
<!-- create post modal -->
<div class="modal fade" id="CreatePostModal" data-url="{% url 'post-list-view' %}" tabindex="-1">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Creating Post</h5>
<button type="button" class="close" data-bs-dismiss="modal" aria-label="Close">
×
</button>
</div>
<div class="modal-body">
<div class="container-fluid">
{% crispy form %}
<div id="PreviewImagesContainer">
</div>
</div>
</div>
<div class="modal-footer float-right">
<button type="button" class="btn btn-sm btn-dark" data-bs-dismiss="modal">Cancel</button>
<button type="submit" form="createPostForm" id="createPostBtn" class="btn btn-sm btn-primary">Post</button>
<span class="loading-icon"><i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
</div>
</div>
</div>
</div>
<!-- end of create post modal -->
I finally solved it using the FormData of javascript by looping through of the files that I am getting from the input then append it to the data of the FormData.
let imageFiles = []
$("#CreatePostModal").on('change', (e) => {
$(postImagesPreviewContainer).html("")
if ($(e.target).attr("id") !== "id_images") return;
var filenames = "";
for (let i = 0; i < e.target.files.length; i++) {
filenames += (i > 0 ? ", " : "") + e.target.files[i].name;
}
e.target.parentNode.querySelector('.custom-file-label').textContent = filenames;
//why is the this element returning the document and not the target itself
// check the length of the files to know what template to make
const files = e.target.files
const numberOfImages = files.length
let gridColumnSize;
if (numberOfImages > 5 | numberOfImages === 0) return;
var row = document.createElement("div")
row.setAttribute("class", "post-images")
for (file of files) {
const postImageChild = document.createElement("div");
postImageChild.setAttribute("class", "post-images__child_down")
const reader = new FileReader();
reader.onload = () => {
img = document.createElement("img")
img.setAttribute("src", reader.result)
img.onload = (e) => {
// here i will process on resizing the image
const canvas = document.createElement("canvas")
const max_width = 680
const scaleSize = max_width / e.target.width
canvas.width = max_width
canvas.height = e.target.height * scaleSize
var ctx = canvas.getContext("2d") // setting the context of the canvas
ctx.drawImage(e.target, 0, 0, canvas.width, canvas.height)
const encodedSource = ctx.canvas.toDataURL(e.target, 'image/png', 1)
const processedImg = document.createElement("img") // create a processed image and return it.
processedImg.src = encodedSource
$(postImageChild).append(processedImg)
imageFiles.push(processedImg)
}
}
$(row).prepend(postImageChild)
$(postImagesPreviewContainer).append(row);
reader.readAsDataURL(file)
}
After getting and resizing all the images I made the ajax call like that:
$("#CreatePostModal").on("click", (e) => {
if ($(e.target).attr("id") !== "createPostBtn") return;
e.preventDefault();
e.target.setAttribute("disabled", true);
$(e.target.nextElementSibling).fadeIn()
var form = $("#createPostForm")[0]
var data = new FormData(form); // getting the form data
console.log("this is the data", data)
for (var i = 0; i < imageFiles.length; i++) { // appending images to data
data.append('images', imageFiles[i]);
};
$.ajax({
url: $("#CreatePostModal").attr("data-url"),
data: data, //$("#CreatePostModal #createPostForm").serialize(),
method: "post",
processData: false,
cache: false,
contentType: false,
dataType: "json",
success: (data) => {
if (data.success) {
setTimeout(() => {
$(e.target).next().fadeOut();
ResetForm('createPostForm', 'PreviewImagesContainer')
$("#CreatePostModal").modal('hide')
$(e.target.nextElementSibling).fadeOut()
alertUser("Post", "has been created successfully!")// alerting the user
}, 1000)
} else {
$("#createPostForm").replaceWith(data.formErrors);
$("#PreviewImagesContainer").html("");
$("#CreatePostModal").find("form").attr("id", "createPostForm");
$(e.target.nextElementSibling).fadeOut()
};
$(e.target).prop("disabled", false);
},
error: (error) => {
console.log(error)
}
})
});
and finally getting the images from request.FILES in the views.py file.
def post(self, request, *args, **kwargs):
form = PostForm(request.POST or None, request.FILES or None)
result = {}
files = request.FILES.getlist("images")
if is_ajax(request=request) and form.is_valid():
post_obj = form.save(commit=False)
post_obj.author = request.user
print(post_obj)
post_obj.save()
for file in files:
new_file = Files(image=file)
new_file.save()
post_obj.images.add(new_file)
post_obj.save()
result['success'] = True
return JsonResponse(result)
form.html
<form>
{% csrf_token %}
<table>
<tr>
<td>
<label for="name">NAME: </label>
<input type="text" data-bind="value: $data.name" name="name" class="form-control" id="name" placeholder="name of product">
</td>
</tr>
<tr>
<td>
<label for="price">PRICE </label>
<input type="text" name="price" data-bind="value:$data.price" class="form-control" id="price" placeholder="price">
</td>
</tr>
<tr>
<td>
<label for="description">DESCRIPTION: </label>
<textarea cols="10" rows="5" name="description" data-bind="value:$data.description" class="form-control" id="description" placeholder="product description"></textarea>
</td>
</tr>
<tr>
<td>
<label for="image">IMAGE: </label>
<input type="file" class="form-control-file" id="image" name="image" required>
</td>
</tr>
<tr><td><button type="button" id="submit" data-bind="click : save" class="btn btn-success">Submit</button></td></tr>
</table>
</form></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.5.0/knockout-min.js"></script>
<!-- <script type="application/javascript" src="static/js/knockout-file-bind.js"></script> -->
<script>
function getCookie(name) {
let cookieValue = null;
if (document.cookie && document.cookie !== '') {
const cookies = document.cookie.split(';');
for (let i = 0; i < cookies.length; i++) {
const cookie = cookies[i].trim();
if (cookie.substring(0, name.length + 1) === (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}
const csrftoken = getCookie('csrftoken');
</script>
<script>
var ViewModel = function () {
var self = this;
self.save = function () {
var formdata = new FormData();
formdata.append('image', $('#image').get(0).files[0]);
formdata.append('name', ko.observable(""));
formdata.append('price', ko.observable(""));
formdata.append('description', ko.observable(""));
console.log(formdata)
$.ajax({
type: 'POST',
url: "{% url 'addProduct' %}",
data: formdata,
headers: {'X-CSRFToken': csrftoken},
processData: false,
contentType: false,
success: function (){
alert('The post has been created!')
},
error: function () {
alert("fail");
}
});
};
};
ko.applyBindings(new ViewModel())
</script>
</body>
</html>
views.py
def productform(request):
return render(request, 'app/product_form.html')
class ProductCreateView(CreateView):
model = Product
fields = ['name', 'price', 'description', 'image']
success_url=reverse_lazy('create-form')
def addProduct(request):
if request.method == "POST":
product=Product()
product.name = request.POST['name']
product.description = request.POST['description']
product.price = request.POST['price']
if len(request.FILES) != 0:
if len(product.image) > 0:
os.remove(product.image.path)
product.image = request.FILES['image']
product.save()
return render(request, 'app/product_form.html')
else:
return render(request, 'app/product_form.html')
# def get_success_url(self):
# return reverse('successlist')
def detail_view(request, id):
context ={}
context["data"] = Product.objects.get(id = id)
return render(request, "detail_view.html", context)
Image is not saving in database django I don't know what is the issue but image file name is displaying in console.log in ajax. Issue is image is not saving to database
When i try to print(request.FILES) it shows multidict is empty
I have given html code views code please check
Please help me to solve this
Thanks in advance
in your form.html try adding
<form method="POST" enctype="multipart/form-data">
{% csrf_token %}
# the rest of your code
</form>
If you're using a formdata object in an $.ajax request you must set the data field to that formdata object.
Also all the fields must be in it, append all to fields into it when you're making the ajax request not before.
self.save = function () {
var formdata = new FormData();
formdata.append('image', $('#image').get(0).files[0]);
formdata.append('name', ko.observable(""));
formdata.append('price', ko.observable(""));
formdata.append('description', ko.observable(""));
$.ajax({
type: 'POST',
url: "{% url 'addProduct' %}",
data: formdata,
headers: {'X-CSRFToken': csrftoken},
processData: false,
contentType: false,
success: function (){
alert('The post has been created!')
},
error: function () {
alert("fail");
}
});
};
I have an user profile where he can crop his image, and so after cropping, and printing data in view nothing is passed to view
Form
<form method="post" action="change_photo/" id="avatar_changing_form">
{% csrf_token %}
<label for="upload_image">
{% if item.image%}
<img src="{{item.image.url}}" alt="" style="max-height:300px">
{%else%}
<img src="{%static 'avatar_sample.png' %}" id="uploaded_image"
class="img-responsive img-circle" />
{%endif%}
<div class="overlay">
<div class="text">Click to Change Profile Image</div>
</div>
<!-- <input type="file" name="image" class="image" id="upload_image" style="display:none" /> -->
{{imageForm.image}}
</label>
</form>
JS & Ajax
$(document).ready(function(){
const imageForm = document.getElementById('avatar_changing_form')
const confirmBtn = document.getElementById('crop')
const input = document.getElementById('upload_image')
const csrf = document.getElementsByName('csrfmiddlewaretoken')
var $modal = $('#modal');
var image = document.getElementById('sample_image');
var cropper;
$('#upload_image').change(function (event) {
var files = event.target.files;
var done = function (url) {
image.src = url;
$modal.modal('show');
};
if (files && files.length > 0) {
reader = new FileReader();
reader.onload = function (event) {
done(reader.result);
};
reader.readAsDataURL(files[0]);
}
});
$modal.on('shown.bs.modal', function () {
cropper = new Cropper(image, {
aspectRatio: 1,
viewMode: 3,
preview: '.preview'
});
}).on('hidden.bs.modal', function () {
cropper.destroy();
cropper = null;
});
$('#crop').click(function () {
cropper.getCroppedCanvas().toBlob((blob) => {
console.log('confirmed')
const fd = new FormData();
fd.append('csrfmiddlewaretoken', csrf[0].value)
fd.append('file', blob, 'my-image.png');
$.ajax({
type: 'POST',
url: imageForm.action,
enctype: 'multipart/form-data',
data: fd,
success: function (response) {
console.log('success', response)
$modal.modal('hide');
$('#uploaded_image').attr('src', fd);
},
error: function (error) {
console.log('error', error)
},
cache: false,
contentType: false,
processData: false,
})
});
});
})
View
def change_photo(request):
if request.user.is_authenticated and Guide.objects.filter(user = request.user).exists():
item = Guide.objects.get(user=request.user)
if request.method == "POST":
Photoform = ChangeImageForm(request.POST or None, request.FILES or None, instance = item)
if Photoform.is_valid():
print(Photoform.cleaned_data['image'])
Photoform.save()
return HttpResponseRedirect('/profile/')
form
class ChangeImageForm(ModelForm):
class Meta:
model = Guide
fields = ['image']
def __init__(self, *args, **kwargs):
super(ChangeImageForm, self).__init__(*args, **kwargs)
self.fields['image'].widget = FileInput(attrs={
'name':'image',
'class':'image',
'id':'upload_image',
'style':'display:none'
})
When i print image field from cleaned data in terminal displays "none", and when i load image through admin everything working good, can pls someone tell me where the problem is?
I build the comment system and when I click like in the first comment the like appears successfully but when I come to the next comment It returns the JSON response page {"a_c_like": true} instead of like appear and the like count in the span also didn't work (count). I build my comment system on the MPTTModel
my view
def add_like_to_comment(request, id):
comment = Comment.objects.get(id=id)
data = {}
if request.method == 'POST':
account = request.user
if comment.likes.filter(id=account.id).exists():
comment.likes.remove(account)
a_c_like = False
else:
comment.likes.add(account)
a_c_like = True
data["a_c_like"] = a_c_like
print(data)
return JsonResponse(data)
my urls
path('comment/like/<int:id>/like', add_like_to_comment, name='add_like_to_comment'),
the html template
<form method="POST" action="{% url 'video:add_like_to_comment' node.id %}" id="comment-like-form">
{% csrf_token %}
<button style="color: #aaaaaa;" class="remove-default-btn p-0 border-0 " type="submit" style="border: none; color: #aaaaaa;" >
<svg width="1.5em" height="1.5em" xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-heart" viewBox="0 0 16 16" >
<path d="M8 2.748l-.717-.737C5.6.281 2.514.878 1.4 3.053c-.523 1.023-.641 2.5.314 4.385.92 1.815 2.834 3.989 6.286 6.357 3.452-2.368 5.365-4.542 6.286-6.357.955-1.886.838-3.362.314-4.385C13.486.878 10.4.28 8.717 2.01L8 2.748zM8 15C-7.333 4.868 3.279-3.04 7.824 1.143c.06.055.119.112.176.171a3.12 3.12 0 0 1 .176-.17C12.72-3.042 23.333 4.867 8 15z"/>
<span class="ml-1" >{{ node.likes.all.count }}</span></svg>
</button>
</form>
Ajax file which handles the like comments
$("#comment-like-form").submit(function(e){
e.preventDefault();
var form = $(this);
let url = form.attr("action");
$.ajax({
type: "POST",
url: url,
data: form.serialize(),
dataType: "json",
success: function(response) {
var btn = form.find("button[type='submit']");
if (response.a_c_like) {
btn.css("color", "red");
} else {
btn.css("color", "#aaaaaa");
}
btn.find("span").text(response.count)
}
})
})
you are using "response.count" but you didn't pass the count value.
add data["count"] = comment.likes.count() in your views.py
example:
def add_like_to_comment(request, id):
comment = Comment.objects.get(id=id)
data = {}
if request.method == 'POST':
account = request.user
if comment.likes.filter(id=account.id).exists():
comment.likes.remove(account)
a_c_like = False
else:
comment.likes.add(account)
a_c_like = True
data["a_c_like"] = a_c_like
data["count"] = comment.likes.count()
print(data)
return JsonResponse(data)
I am currently setting up a file upload with React for the frontend and Django for the backend. More specifically, I want to pass a file + some data to my database via an API.
But while uploading the file I get the error: "The submitted data was not a file. Check the encoding type on the form."
models.py (Django)
class Story (models.Model):
title = models.CharField(max_length=100,blank=False)
content = models.TextField(blank=False)
author = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
audio = models.FileField(default='SOME STRING', upload_to='audio_stories/',null=True, validators=[validate_file_extension_audio])
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('story-detail', kwargs={'pk': self.pk})
serializers.py (Django)
class StorySerializer(serializers.ModelSerializer):
class Meta:
model = Story
fields = '__all__'
A MultiPartParser is used to pass file + data.
api.py (Django)
class StoryViewSet(viewsets.ModelViewSet) (Django):
serializer_class = StorySerializer
parser_classes = (MultipartJsonParser, parsers.JSONParser)
queryset = Story.objects.all()
permission_classes = [
permissions.IsAuthenticated
]
def perform_create(self, serializer):
serializer.save(author=self.request.user)
utils.py (Django)
class MultipartJsonParser(parsers.MultiPartParser):
def parse(self, stream, media_type=None, parser_context=None):
result = super().parse(
stream,
media_type=media_type,
parser_context=parser_context
)
data = {}
# find the data field and parse it
data = json.loads(result.data["data"])
qdict = QueryDict('', mutable=True)
qdict.update(data)
return parsers.DataAndFiles(qdict, result.files)
In actions story.js (React)
import axios from "axios";
import { tokenConfig } from './auth';
import { createMessage, returnErrors } from "./messages";
import {ADD_STORY} from "./types";
const apiBase = "http://localhost:8000/api";
export const addStory = story => (dispatch, getState) => {
axios
.post(apiBase +"/story/", story, tokenConfig(getState))
.then(res => {
dispatch(createMessage({ addStory: "Story Added" }));
dispatch({
type: ADD_STORY,
payload: res.data
});
})
.catch(err =>
dispatch(returnErrors(err.response.data, err.response.status))
);
};
In components create_story.js (React)
import React, { Component } from "react";
import { connect } from "react-redux";
import PropTypes from "prop-types";
import { addStory } from "../../actions/story";
export class CreateStory extends Component {
state = {
title: "",
content:""
};
static propTypes = {
addStory: PropTypes.func.isRequired
};
onChange = e => this.setState({ [e.target.name]: e.target.value });
onSubmit = e => {
e.preventDefault();
const { title,content, audio} = this.state;
const story = { title, content, audio};
this.props.addStory(story);
this.setState({
title: "",
content:"",
audio:""
});
};
render() {
const {title, content, audio} = this.state;
return (
<div className="card card-body mt-4 mb-4">
<h2>Add Story</h2>
<form onSubmit={this.onSubmit}>
<div className="form-group">
<label>Title</label>
<input
className="form-control"
type="text"
name="title"
onChange={this.onChange}
value={title}
/>
</div>
<div className="form-group">
<label>Content</label>
<input
className="form-control"
type="text"
name="content"
onChange={this.onChange}
value={content}
/>
</div>
<div className="form-group">
<label>Audio</label>
<input
className="form-control"
type="file"
name="audio"
onChange={this.onChange}
value={audio}
/>
</div>
<div className="form-group">
<button type="submit" className="btn btn-primary">
Submit
</button>
</div>
</form>
</div>
);
}
}
export default connect(
null,
{ addStory }
)(CreateStory);
I'm having trouble tracing the error in my code. I assume that the react form does not provide the correct data format, i.e. formdata. But i dont know how and wehre to change this. Without the file upload I was able to successfully pass data to my database.
Many thanks.
Your onChange function in create_story.js is not gathering the file. You may need to reformat that function to something like:
onChange = (e) => {
if(e.target.name === 'audio') {
this.setState({
[e.target.name]: e.target.files[0]
}, () => console.log(this.state.audio))
} else {
this.setState({
[e.target.name]: e.target.value
}, () => console.log(this.state))
}
}