HTML Structure
Overview
The app consists of 10 html files with section.html and dt_section.html being the most significant. Every html file extends the base.html except for impresum.html and legal.html. base.html incorporates the top navigation bar and the footer. section.html and dt_section.html function as the main pages, displaying sections and fields, complemented by a side navigation bar.
Static content, such as CSS, JS, and image files, resides within the mc_and_datasheet directory’s static folder. While the HTML files leverage open-source JS and CSS codes, they also introduce specific CSS codes, which take precedence over others. Additionally, JavaScript is embedded directly within the HTML files to add functionalities.
To provide a clearer understanding of the intricacies of the HTML structure, let’s delve deeper into the section.html file, which stands out due to its complexity.
Detailed Breakdown of section.html
Template Structure and Inheritance
The section.html file is a Django template that extends from mc_and_datasheet/base.html:
{% extends 'mc_and_datasheet/base.html' %}
This indicates it inherits the foundational structure from base.html and can overwrite or append to specific blocks defined in the base template. The title of this page is determined as “Section” through the {% block title %}.
CSS Styles
There are 7 CSS stylesheets linked in this file:
- Local Styles:
Essential styles for jQuery UI components, Bootstrap specifics for the project, styles for the sidebar component, and distinct styles for the section are evident.
<link rel="stylesheet" href="{% static 'mc_and_datasheet/css/jquery-ui.css' %}">
- External Styles:
External styles, such as FontAwesome, Bootstrap, and Google Fonts, are utilized.
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" />
JavaScript Functionality
The template incorporates 24 JavaScript scripts, adding interactivity to the page:
document.querySelector('.drop-zone').ondragenter = function() {
this.style.cursor = "pointer";
...
}
Django Template Mechanics
Django’s templating engine shines in this file:
For Loops: Iterates over lists or querysets, enabling dynamic rendering.
{% for section in section_list %} ... {% endfor %}If Conditions: Conditionally renders sections of the template.
{% if section.id == current_section_id %}active{% endif %}
User Input and Forms
Five forms are embedded in the template:
<form method="POST">
...
</form>
Each form defines its method (typically “POST” or “GET”) and an associated action, which is the URL the form data targets upon submission.
Conclusion
The section.html file epitomizes a comprehensive Django template, melding static and dynamic content. It adeptly employs CSS for aesthetic appeal, JavaScript for interactivity, and Django’s templating tags for dynamic content presentation, rendering it a pivotal element in the application’s user interface.