Django Models

سرفصل های دوره

Django’s ORM is one of the most powerful and easy to use Python ORMs. This course will teach you how to leverage the full power of Django Models to build better data models for your web applications.

1. Course Overview

1. Course Overview

2. Introduction - ORM and Django Models

1. What Is an ORM

2. Project Demo

3. How to Work along with the Course

3. Django Model Classes and Instances

1. Intro - Django Model Classes

2. Demo - Creating a Model

3. Note - Storing Currency Data

4. Demo - Creating the Database

5. Demo - Different Backends - PostgreSQL

6. Demo - Different Backends - MySQL

7. Demo - Instance Operations - Create, Update, Delete

8. Review

4. Django Model Fields

1. Intro - Model Field Types

2. Storing Numbers and Text

3. Demo - Textfield

4. Demo - Understanding Null and Blank

5. Review - Field Options

6. Exercise - Field Options

7. Demo - A One-to-Many Relation

8. Many-to-Many Relations

9. Review - Relations

05. Managers and QuerySets

01. Introduction - Managers

02. QuerySets are Lazy

03. Get, Filter, and Lookups

04. Limiting and Ordering

05. Retrieving a Single Object

06. Review - Managers and QuerySets

07. Related Managers

08. Creating a Relation

09. Aggregate and Annotate

10. Referencing Field Values with F()

11. Complex Lookups with Q()

6. Customizing Model Behaviour

1. The Model Meta Class

2. Custom Methods

3. Custom Managers

4. Model Inheritance

5. Review

7. Migrations

1. Migration Commands

2. Understanding Migration Files

3. Merging Migrations

4. Squashing Migrations

5. Custom Migrations

6. Fixtures

7. Review

8. Optimizing the ORM

1. Knowing your Queries

2. QuerySet Caching

3. Reducing the Number of Queries

4. Raw SQL

5. Transactions

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تولید کننده: PluralSight