Django外键与用户无关

Question

我认为这个问题有一个非常简单的解决方案，但是我已经在 google 上搜索了几个小时并没有设法解决它。

我正在开发的网站允许用户将电影添加到观看列表。

它有一个搜索功能，可以使用 OMDB API 按标题浏览电影（效果很好）。然后它会渲染所有电影海报和标题以及分配给每部电影的按钮。然后该按钮获取 img src 链接、特定电影的标题和发行年份，并向 movie_forms 表单发送 AJAX POST 请求。该请求确实有效，因为它将数据添加到模型中，但是当我发送发布请求时，外键是空白的（它在管理视图上显示为'-----'）。这是我的代码！

urls.py

urlpatterns = [
path('', views.homepage, name='homepage'),
path('signup/', views.signup_view, name='signup'),
path('login/', views.login_view, name='login'),
path('logout/', views.logout_view, name='logout'),
path('movie_form/', views.mlf_view, name='movie_form'),
]

views.py

def mlf_view(request):
form = MovieListForm()
if request.method == 'POST' and request.is_ajax():
    print(request.body)
    form = MovieListForm(request.POST)
    if form.is_valid() and request.is_ajax():
        title = form.cleaned_data.get('title')
        img_link = form.cleaned_data.get('img_link')
        plot = form.cleaned_data.get('plot')
        release_date = form.cleaned_data.get('release_date')
        score = form.cleaned_data.get('score')
        form.user = request.user
        form.save()
        print('form is valud')
        return JsonResponse({"title": title,
            "img_link": img_link,
            "plot": plot,
            "release_date": release_date,
            "score": score}, status=200)
    else:
        print(form.errors)
return render(request, 'main/movie_form.html', {'form': form})

models.py

class MovieList(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, unique=True)
title = models.CharField(max_length=300)
img_link = models.TextField()
release_year = models.IntegerField()

def __str__(self):
    return self.title

forms.py

class MovieListForm(forms.ModelForm):
class Meta:
    model = MovieList
    fields = ['title', 'img_link', 'release_year']

GetMovies.js（从输入中获取值，并渲染出电影信息）

const getMovies= () => {
var title = document.getElementById('title').value
var div = document.getElementById('movies')
console.log(title)


fetch('http://www.omdbapi.com/?apikey=b53dac20&s=' + title + '&type=movie')
    .then((res) => res.json())
    .then((response) => {
        for (var i = 0; i < response.Search.length; i++) {
            /// create div for each element ///
            var indDiv = document.createElement('div')

            /// creates p tag for title ///
            var movie_title = document.createElement('P')
            movie_title.innerHTML = response.Search[i].Title
            movie_title.id = "title" + i 

            /// creates p tag for release year ///
            var release_year = document.createElement('P')
            release_year.innerHTML = response.Search[i].Year
            release_year.id = 'year' + i

            /// creates img tag with poster link provided by the API and adds unique ID for each img tag ///
            var poster= document.createElement('IMG')
            poster.src = response.Search[i].Poster
            poster.id = 'img' + i

            /// creates button for each div ///
            var button = document.createElement('BUTTON')
            button.classList.add("btn")
            button.value = i 
            button.innerHTML = 'click'
            button.setAttribute('onclick', 'addMovie(this.value)')

            /// appends poster and button to the individual divs and appends those to the main div ///
            indDiv.appendChild(poster)
            indDiv.appendChild(button)
            indDiv.appendChild(movie_title)
            indDiv.appendChild(release_year)
            div.appendChild(indDiv)
            console.log(indDiv)
        }
    })

}

AddMovie.js（发送 AJAX POST 请求）

function addMovie(value) {
var token = Cookies.get('csrftoken');
$.ajax({
    url: "http://127.0.0.1:8000/movie_form/", 
    type: "POST",
    headers: {"X-CSRFToken": "{{ csrf_token  }}"},
    data: {
        title:$("#title" + value).text(),
        img_link:$("#img" + value).prop('src'),
        release_year:$("#year" + value).text(),
        csrfmiddlewaretoken: token,
        action: "post"
    },
    success:function(data) {
        console.log('worked!')
    },
    error:function(xhr, status, error) {
        console.log(xhr.statusText)
    }
})
}

编辑：添加了我的 html

电影形式

<div class="container mt-5 w-50">
<form id="movieForm" method="POST">
    {% csrf_token %}
    {% for field in form %}
        <p>{{field.label_tag}}</p>
        {{field}}
    {% endfor %}
    <button>test</button>
</form>

Answer 1

您需要编辑对象的用户字段而不是表单的字段。

if form.is_valid() and request.is_ajax():
    movieList = form.save(commit=False) # commit=False so Django doesn't save the object in the db until we edit the user field.
    movieList.user = request.user
    movieList.save()