Client–Server Model Djando Client–Server

Client–Server Model Djando Client–Server

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  Presented By 2025 Django Arindam Saha
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  Page 2 What isDjango? • Django is a high-level Python web framework • Used to build websites and web applications • Simplifies web development using Python • Handles complex tasks automatically • Allows developers to focus on application logic
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  Page 3 Why UseDjango? • Saves development time • Follows DRY principle (Don’t Repeat Yourself) • Built-in features: oUser authentication oDatabase connectivity oCRUD operations • Secure and scalable • Widely used in industry
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  Page 4 How DoesDjango Work? • Django follows the MVT Architecture • MVT stands for: oModel oView oTemplate • Separates data, logic, and presentation • Improves code organization and maintenance
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  Page 5 Django MVTArchitecture • Model → Handles database and data logic • View → Handles user requests and responses • Template → Handles user interface (UI) • Django internally manages the flow between them
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  Page 6 Model (M) •Represents data layer • Interacts with the database • Uses ORM (Object Relational Mapping) • Eliminates need to write complex SQL • Models are defined in models.py
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  Page 7 Django ORM •ORM maps database tables to Python objects • Enables database operations using Python code • Supports: oInsert oUpdate oDelete oRetrieve data • Makes database handling easy and secure
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  Page 8 View (V) •HandlesHTTP requests •Processes business logic •Fetches data from models •Sends data to templates •Views are defined in views.py
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  Page 9 Template (T) •Defineshow data is displayed •Usually written in HTML •Uses Django Template Language (DTL) •Supports variables and logic •Stored inside templates folder
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  Page 10 Template Example <h1>MyHomepage</h1> <p>My name is {{ firstname }}.</p> • {{ firstname }} is a template variable • Data comes from the view • Logic and UI are separated
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  Page 11 URLs inDjango •Manages navigation between pages •Maps URL patterns to views •Each request is routed to a view •URL configuration stored in urls.py •Enables clean and readable URLs
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  Page 12 Django ProjectStructure • models.py Database models → • views.py Request handling logic → • templates/ HTML templates → • urls.py URL routing → • settings.py Project configuration →
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  Page 13 History ofDjango •Developed by Lawrence Journal-World •Created in 2003 •Designed for fast web development •Released publicly in July 2005 •Built to meet tight deadlines
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  Page 14 Django Versions •Open-source framework • Regular updates and improvements • Latest version: oDjango 4.0.3 oReleased in March 2022 • Supports modern web standards
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  Page 15 Key Advantagesof Django •Rapid development •High security •Built-in admin panel •Scalable and flexible •Strong community support
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  Page 16 Django Requirements– Overview •Django is a Python-based web framework •To work with Django, we need: oPython oPIP (Python Package Manager) oVirtual Environment
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  Page 17 Django RequiresPython •Django is written in Python •Python must be installed before installing Django •Django supports Python 3.x versions
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  Page 18 Check PythonInstallation •Open Command Prompt •Run the command: python --version • If Python is installed, version will be displayed • Example: Python 3.13.2
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  Page 19 What isPIP? •PIP = Python Package Installer •Used to install Python libraries and frameworks •Required to install Django •Included with Python from version 3.4 onwards
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  Page 20 Check PIPInstallation •Open Command Prompt •Run the command: opip --version •pip –version •If installed, version details will appear •Example: opip 24.3.1 (python 3.13)
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  Page 21 Installing PIP(If Not Available) • If PIP is not installed: • Download it from: https://pypi.org/project/pip/ • Follow installation instructions provided on the website
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  Page 22 What isa Virtual Environment? • A Virtual Environment is an isolated workspace • Keeps project dependencies separate • Prevents version conflicts between projects • Recommended for every Django project
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  Page 23 Why UseVirtual Environment in Django? •Separate environment for each project •Easy dependency management •Cleaner and safer development •Avoids system-wide package conflicts
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  Page 24 Next Steps •Createa virtual environment •Activate the virtual environment •Install Django inside the virtual environment •Start building Django applications
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  Page 25 Virtual Environmentin Django • A Virtual Environment is an isolated workspace for a Python project • It keeps project dependencies separate • Recommended to use one virtual environment per Django project • Helps avoid version conflicts • Python provides built-in support using venv
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  Page 26 Why UseVirtual Environment? • Keeps project libraries isolated • Avoids dependency conflicts • Easy project management • Safe environment for testing • Required for professional Django development
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  Page 27 Creating aVirtual Environment • Python includes venv module • Choose any name for the environment • Example name used: myworld • Command to create virtual environment: python -m venv myworld • Run this command in Command Prompt / Terminal • Navigate to project folder before running
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  Page 28 Virtual EnvironmentFolder Structure After creation, a folder named myworld is created with: • Include – Header files • Lib – Installed Python packages • Scripts – Activation files (Windows) • pyvenv.cfg – Configuration file • .gitignore – Git ignore settings
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  Page 29 Activating VirtualEnvironment (Windows) Activating Virtual Environment (Windows) myworldScriptsactivate.bat • Run inside project directory • Activates the virtual environment
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  Page 30 Activating VirtualEnvironment (Linux / macOS) To activate on Windows: myworldactivate.bat • Run inside project directory • Activates the virtual environment
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  Page 31 Virtual EnvironmentActivated Once activated, command prompt changes to: Windows: (myworld) C:UsersYourName> Linux / macOS: (myworld) $ • (myworld) indicates active environment • All Python packages will install inside this environment
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  Page 32 Check PythonInstallation • Open Command Prompt / Terminal • Run the command: python --version • If Python is installed, version is displayed Example: Python 3.13.2
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  Page 33 What isPIP? • PIP = Python Package Installer • Used to install Python libraries and frameworks • Comes bundled with Python version 3.4 and above • Required to install Django
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  Page 34 Check PIPInstallation • Open Command Prompt / Terminal • Run the command: pip –version • Example output: pip 24.3.1 from ... (python 3.13)
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  Page 35 QUESTIONS?
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