The document explains the use of templates in the Django web framework, emphasizing their role in generating dynamic HTML pages and organizing HTML files in a single directory for simplicity. It describes the Django template language which includes variables, filters, and tags, providing syntax examples for rendering and modifying template content. Key constructs like variables and tags facilitate logical conditions and loops within templates, enhancing functionality in rendering web applications.

1. Django Web Framework
TEMPLATE

2. TEMPLATE
 A template in Django is basically written in HTML in a .html file.
 Django framework efficiently handles and generates dynamic HTML web
pages that are visible to the end-user.
 Django mainly functions with a backend so, in order to provide a
frontend and provide a layout to our website, we use templates.

3. TEMPLATE
 In current project, we will create a single template directory/folder that
will contain all html files and that can be spread over the entire project
for simplicity.
 Create a folder/directory in command prompt on your project path using
DOS (Disk Operating System) command md (make directory)
 Example :
(djangowork) C:UsersLenovoweekdays_django_batchtemplate_inheritance>md template
Project path

4. TEMPLATE
 Add template in settings.py file,Write following commands,line no.14 and
17
Variable_
name
folder_name
Add varaiable name here

5. DJANGO TEMPLATE LANGUAGE
 A Django template is a text document or a Python string marked-up using the Django
template language.
 Some constructs are recognized and interpreted by the template engine.
 A template contains variables, which get replaced with values when the template is
evaluated, and tags, which control the logic of the template.
 A template is rendered with a context. Rendering replaces variables with their values, which
are looked up in the context, and executes tags. Everything else is output as is.

6. DJANGO TEMPLATE LANGUAGE
 The syntax of the Django template language involves four constructs.
1. Variable
 A variable outputs a value from the context, which is a dict-like object mapping keys to
values.
 Variables are surrounded by {{ }} like this .
 Use a dot (.) to access attributes of a variable.
 In html file, we write :
<h1>My name is {{firstname}} {{lastname}}</h1>
In views .py file create context variable as a dictionary.
With context {‘firstname’:’Deepali’ ‘lastname’:’Shinkar’} this template renders to :
<h1>My name is Deepali Shinkar</h1>
Use a dot (.) to access attributes of a variable.

7. DJANGO TEMPLATE LANGUAGE
2. Filter
When we need to modify variable before displaying ,we can use filter pipe ‘|’ is used
to apply filter.
Syntax : {{variable | filter}}
Example :{{firstname | upper}}
Some of filters take argument :
Syntax : {{variable | filter : argument}}

8. DJANGO TEMPLATE LANGUAGE
 Float Format :When used without argument rounds a floating point number
to one decimal place but only if there is a decimal part to be displayed.
 Example :
 56.24321 ---{{value | floatformat}} -56.2
 56.00 ---{{value | floatformat}} -56
 56.3700 ---{{value | floatformat}} -56.4
 56.24321 ---{{value | floatformat:2}} -56.24

9. DJANGO TEMPLATE LANGUAGE
 3.Tags
 Tags provide arbitrary logic in the rendering process.
 Tags are surrounded by {%%} like this.
Examples :
 Some tags require beginning and ending tags.
{% csrf_token %}
{% url ‘add’ %}
{% includes ‘base.html’ %}
etc.

10. DJANGO TEMPLATE LANGUAGE
 Some tags require beginning and ending tags. Like this
 If tag : It executes a variable and if that variable is true then execute html
tag inside a if body.
Syntax :
 For tag : Evaluate a for loop any number of times which is depend on iterable
object.
Syntax :
{% if variable or condition %}
Html tags
{% endif %}
{% for variable in iterable_object
%}
{{variable}}
{% endfor %}