With all the Python web frameworks to choose from, why pick Django web framework? It might not be the easiest to use and it’s certainly not the newest. Do you need more information to discover what is Django and how it's used? Do you want some hands-on experience working with a web app created using the Django web framework? IBM offers a step-by-step tutorial for using IBM Cloud services to track activity and monitor the health of a Python-based Kubernetes application written using the Django web framework and running on the IBM Cloud. pk ,)))Īnd adjust the polls/urls.py like: from django.urls import path from. flush () return HttpResponseRedirect ( reverse ( 'polls:results', args = ( question. models import Question, Choice, db def index ( request ): latest_question_list = Question. Let’s add a couple of views in polls/views.py, starting with a list view: from django.shortcuts import render from django.template import loader from django.http import HttpResponseRedirect from django.urls import reverse from django_sorcery.shortcuts import get_object_or_404 from. # Question.objects and Question.query are both query properties that return a query object bound to db > Question.objects # lets change the question text > q.question_text = "What's up?" # at this point our question is in persistent state and will receive a primary key > q.pk # lets flush to the database > db.flush() # at this point the question is in pending state > db.new # lets save our question, we need to add our question to the db > db.add(q) > q = Question(question_text="What's new?", pub_date=timezone.now()) # Lets create a new question > from django.utils import timezone # we have no choices or questions in db yet > () > from polls.models import Choice, Question, db # Import the model classes and the db Right now, we have enough to hop in django shell: $ python manage.py shell Let’s bring our db up to date: $ python manage.py sorcery upgrade Running migrations for polls on database default INSERT INTO alembic_version_polls (version_num) VALUES ('d7d86e07cc8e') Let’s take a look at generated sql: $ python manage.py sorcery upgrade -sql pollsĬONSTRAINT alembic_version_polls_pkc PRIMARY KEY (version_num)įOREIGN KEY(question_pk) REFERENCES question (pk) drop_table ( 'question' ) # end Alembic commands # PrimaryKe圜onstraint ( 'pk' ) ) # end Alembic commands # def downgrade (): # commands auto generated by Alembic - please adjust! # op. String ( length = 200 ), nullable = True ), sa. Integer (), autoincrement = True, nullable = False ), sa. revision = '3983fc419e10' down_revision = None branch_labels = None depends_on = None def upgrade (): # commands auto generated by Alembic - please adjust! # op. """ from alembic import op import sqlalchemy as sa # revision identifiers, used by Alembic. Let’s take a look at the generated migration file. polls/migrations/3983fc419e10_add_question_and_poll_models.py. Now that we have some models, lets create a migration using alembic integration: $ python manage.py sorcery revision -m "Add question and poll models" polls Generating. backref ( "choices", cascade = "all, delete-orphan" )) Integer (), autoincrement = True, primary_key = True ) choice_text = db. Integer (), autoincrement = True, primary_key = True ) question_text = db. Polls/models.py: from django_sorcery.db import databases db = databases. Now we’re going to make a twist and start building our app with sqlalchemy. Īnd lets add our polls app and django_sorcery in INSTALLED_APPS in mysite/settings.py: INSTALLED_APPS = This will create a polls app with standard django app layout: $ tree. Lets start by creating a site: $ django-admin startproject mysiteĪnd lets create an app: $ cd mysite $ python manage.py startapp polls Installation pip install django-sorcery Quick Start It aims to provideĪ similar development experience to building a Django application with Django ORM, except with SQLAlchemy. Provides utilities, helpers and configurations to ease the pain of using SQLAlchemy with Django. And Django is a great framework, until you decide not to use Django ORM.
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