django-database

问题 I'm interested in running Django on an async framework like Concurrence or gevent. Both frameworks come with its own async MySQL driver. Problem is Django only officially supports MySQLdb. What do I need to do to make Django work with the MySQL drivers that come with gevent or Concurrence? Is there a step-by-step guide somewhere that I can follow? Is this a major undertaking? Thanks. 回答1: three cheers for @traviscline's suggestion to go with pymysql. his suggestion was based on this post from

问题 I have a problem correctly setting my middleware and routers to support multiple databases, one for each language (I decided to keep them separate). I tried to use this solution, but for now I didn't get much use of it. In my settings.py databases and middleware are defined as follows: DATABASES = { 'default': {}, 'ru': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': 'db_ru.sqlite3', }, 'en': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': 'db_en.sqlite3', } } DATABASE_ROUTERS = ['me

问题 I have a problem correctly setting my middleware and routers to support multiple databases, one for each language (I decided to keep them separate). I tried to use this solution, but for now I didn't get much use of it. In my settings.py databases and middleware are defined as follows: DATABASES = { 'default': {}, 'ru': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': 'db_ru.sqlite3', }, 'en': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': 'db_en.sqlite3', } } DATABASE_ROUTERS = ['me

问题 I have a series of integration-level tests that are being run as a management command in my Django project. These tests are verifying the integrity of a large amount of weather data ingested from external sources into my database. Because I have such a large amount of data, I really have to test against my production database for the tests to be meaningful. What I'm trying to figure out is how I can define a read-only database connection that is specific to that command or connection object.

问题 I have a series of integration-level tests that are being run as a management command in my Django project. These tests are verifying the integrity of a large amount of weather data ingested from external sources into my database. Because I have such a large amount of data, I really have to test against my production database for the tests to be meaningful. What I'm trying to figure out is how I can define a read-only database connection that is specific to that command or connection object.

问题 I have a project with 2 applications ( books and reader ). Books application has a table with 4 milions of rows with this fields: book_title = models.CharField(max_length=40) book_description = models.CharField(max_length=400) To avoid to query the database with 4 milions of rows, I am thinking to divide it by subject ( 20 models with 20 tables with 200.000 rows ( book_horror, book_drammatic, ecc ). In "reader" application, I am thinking to insert this fields: reader_name = models.CharField

问题 I can't figure out how to pass user object to the following serializer: class ReviewSerializer(serializers.ModelSerializer): user = UserSerializer(read_only=True) class Meta: model = Review fields = ('pk', 'title', 'user', 'movie', 'timestamp', 'review_text',) I have this viewset: class ReviewsViewSet(viewsets.ModelViewSet): queryset = Review.objects.all() serializer_class = ReviewSerializer and this model: class Review(models.Model): title = models.CharField(max_length=255) user = models

问题 I've created a django project and then two apps, app1 and app2. I want that both apps share a mysql database('nameofDB' to mysql, 'mydb' to django). I added the database to DATABASES in settings.py and for each app I created a dbrouter file, and added each router to DATABASE_ROUTERS. Also in settings.py added each app to INSTALLED_APPS. My problem is when I try to make python manage.py syncdb --database=mydb Because it doesn't sync both apps(only app1). It says: Creating tables ... Creating

问题 I am using django multiple DB router concepts, having multiple sites with different db's. Base database user will login with all other sub sites. When i try syncdb in base site its worked properly(at any time), but trying syncdb with other sites works first time only, if we try next time on-wards it throws integiry error like below django.db.utils.IntegrityError: (1062, "Duplicate entry '22-add_somesame' for key 'content_type_id'") Once i removed multiple DB router settings in that project

问题 In my template I have used for loop for some fields <div class="register_div"> <p>Title:</p> <p>{{ form.title }}</p> </div> <div class="register_div"> <p>Upload Images :</p> <p>{{ form.image }}</p> </div> {% for item in product %} <div class="register_div"> <p>{{ item.Name }} <input type="text" name="custom[{{item.id}}]"/></p> </div> {% endfor %} <div class="register_div"> <p>Price:</p> <p>{{ form.price }}</p> </div> As code shows there is one field which using for loops if that field has