[英]django - how to save api data into model from template button
I am using the Yelp API to search bars in a any location.我正在使用 Yelp API 在任何位置搜索栏。 This uses a template called results.html that has a button.这使用了一个名为 results.html 的模板,它有一个按钮。 Clicking this button should save the Yelp API unique ID of a Bar into my models.单击此按钮应将 Bar 的 Yelp API 唯一 ID 保存到我的模型中。 In my results dictionary that I loop over I call this 'id'.在我循环的结果字典中,我称之为“id”。 This is where I am having issues, taking the id from the template, saving it in the add_list views to the model BarList.这是我遇到问题的地方,从模板中获取 id,将其保存在 add_list 视图中到模型 BarList。 This will not save to my database, I believe the main problem is my logic in add_list.这不会保存到我的数据库中,我相信主要问题是我在 add_list 中的逻辑。
I get the following error.我收到以下错误。 The long string is the id from the loop.长字符串是循环中的 id。 Results.id.结果.id。
IntegrityError at /add/Jlhck4bGoXaXfuoMOKGRww/
NOT NULL constraint failed: API_barlist.api_id
Views.py视图.py
def index(request):
if request.method == 'POST':
form = CityForm(request.POST)
if form.is_valid():
city = form.cleaned_data['city_name']
API_KEY = 'MyAppKey'
url = 'https://api.yelp.com/v3/businesses/search'
headers = {'Authorization': 'Bearer {}'.format(API_KEY)}
params = {'term':'bar','location':city}
req = requests.get(url, params=params, headers=headers)
parsed = json.loads(req.text)
businesses = parsed["businesses"]
final_result = []
for business in businesses:
results = {
'id': business['id'],
'business': business['name'],
'rating': business['rating'],
'image_url': business['image_url']
}
final_result.append(results)
context = {'final_result': final_result}
return render(request, 'API/results.html', context)
else:
form = CityForm()
return render(request, 'API/home.html', {'form':form})
def add_list(request):
if request.method == 'POST':
api_id = request.POST.get("id")
Bar = BarList(api_id=api_id)
Bar.save()
else:
return render(request, 'API/results.html')
Models.py模型.py
class BarList(models.Model):
api_id = models.CharField(max_length=100)
Urls.py网址.py
urlpatterns = [
path('', views.index, name='API-home'),
path('list', views.list, name='API-list'),
path('add/<str:results>/', views.add_list, name='API-add') ]
results.html template结果.html 模板
{% extends "API/base.html" %}
{% block content %}
{% for results in final_result %}
<h3>{{ results.business }}</h3>
<form action="{% url 'API-add' results.id %}" method="POST">
{% csrf_token %}
<input type="submit" value="Add Item to List" />
</form>
{% endfor %}
{% endblock content %}
Few things I needed to do.我需要做的事情很少。 The not null constraint error is fixed by adding a constraint to the model.通过向模型添加约束来修复非空约束错误。 Furthermore I needed to finish writing my view to properly save.此外,我需要完成我的视图的编写才能正确保存。
Updated Models更新模型
class BarList(models.Model):
api_id = models.CharField(max_length=100, null=False)
user = models.ForeignKey(User,on_delete=models.CASCADE,null=True,related_name="user")
Updated View更新视图
def add_list(request,results):
if request.method == 'POST':
Bar = BarList(api_id=results,user=request.user)
Bar.save()
return HttpResponseRedirect('/')
else:
return render(request, 'API/results.html')
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