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Django post save signal
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| from django.contrib.auth.models import User | |
| from django.db.models.signals import post_save | |
| from django.dispatch import receiver | |
| from rest_framework.decorators import api_view | |
| from rest_framework.response import Response | |
| from rest_api.models import UserProfile | |
| @api_view(['GET', 'POST']) | |
| def index(request): | |
| """ | |
| request_data = { | |
| "meta": [ | |
| { | |
| "first_name": "Test" | |
| }, | |
| { | |
| "last_name": "Demo" | |
| }, | |
| { | |
| "address": "Pune, Maharastra, India" | |
| } | |
| ] | |
| } | |
| """ | |
| user_profile = UserProfile.objects.get(user__username='admin') | |
| if request.method == 'GET': | |
| response_dict = { | |
| 'username': user_profile.user.username, | |
| 'first_name': user_profile.user.first_name, | |
| 'last_name': user_profile.user.last_name, | |
| 'email': user_profile.user.email, | |
| 'address': user_profile.address, | |
| 'phone_number': user_profile.phone_number, | |
| 'meta': user_profile.meta, | |
| } | |
| return Response(response_dict) | |
| data = request.data.get('meta') | |
| user_profile = UserProfile.objects.get(id=1) | |
| user_profile.meta = data | |
| user_profile.save() | |
| return Response({"success": True}) | |
| def check_field(field, data): # checks if key is present in list of dict | |
| return any(field in d for d in data) | |
| def get_value(field, data): # get value if key is present in list of dict | |
| return next(d for i, d in enumerate(data) if field in d)[field] | |
| @receiver(post_save, sender=UserProfile) | |
| def update_user_from_meta_data(sender, **kwargs): | |
| user_profile = kwargs['instance'] | |
| meta_data = user_profile.meta | |
| if meta_data: | |
| post_save.disconnect(update_user_from_meta_data, sender=sender) | |
| user_obj = User.objects.get(pk=user_profile.user.id) | |
| if check_field('first_name', meta_data): | |
| user_obj.first_name = get_value('first_name', meta_data) | |
| if check_field('last_name', meta_data): | |
| user_obj.last_name = get_value('last_name', meta_data) | |
| user_obj.save() | |
| if check_field('address', meta_data): | |
| user_profile.address = get_value('address', meta_data) | |
| user_profile.save() | |
| post_save.connect(update_user_from_meta_data, sender=sender) | |
| print('*** success **') |
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