Gagandeep Trivedi

This course explains the Django template system from a technical perspective - how it works and how to extend it.

English

Django - The Template Layer (Part 2)

Programming Languages

Overview

In this lecture, we are going to learn how to configure an engine.

Configuring an Engine

In this lecture, we are going to cover topics like loading a template, rendring a context and more.

Loading a Template

In this lecture, we are going to see how invalid variable are handled in Django templates.

How Invalid Variables are Handled

In this lecture, we are going to cover limitations with string literals and playing with context objects.

Limitations with String Literals and Playing with Context Objects

Django comes with a special context class that acts slightly differently from the normal context.

Using Request Context

In this lecture, we are going to cover what each of the built-in processors is used for.

Built-in template Context Processors

In this lecture, we are going to cover topics such as loading templates, loader types and more.

Loading Templates

In this lecture, we are going to wrap up this section with custom loaders and template origin.

Coustom Loaders

Django's template  language comes with a wide variety of built-in tags and filters designed to attach the presentation logic needs of your application.

Custom Template Tags and Filters

Custom filters are just Python functions that takes one or two arguments.

Writing Custom Template Filters

When writing a custom filter give some thought to how the filter will interact with  django's auto escaping behaviour

Filter and Auto-escaping

Tags are more Complex than filters, because tags can do anything.

Writing Custom Template Tags

Another common type of template tag is the type that displays some data by rendering another template.

Inclusion Tags

To ease the creation of tags setting a variable in the context. Django provides a helper function assignment tag.

Assignment Tags

The second step in writing custom tags is to define a node subclass that has a render method.

Writing the Renderer

Finally, we are going to register the tag with your module's library instance.

Registering the Tag

Generally it's more flexible if your template text set the template variable instead of outputting values.

Lessons

19 lessons • 2h 32m

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Overview

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Configuring an Engine

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Loading a Template

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How Invalid Variables are Handled

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Limitations with String Literals and Playing with Context Objects

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Using Request Context

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Built-in template Context Processors

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Loading Templates

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Coustom Loaders

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Custom Template Tags and Filters

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