Add template inheritance

Author: GitauHarrison

.flaskenv

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+FLASK_APP=flask_auth.py
+FLASK_ENV=development
+FLASK_DEBUG=True

__pycache__/flask_auth.cpython-38.pyc

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+from flask import Flask
+from flask_bootstrap import Bootstrap
+
+app = Flask(__name__)
+bootstrap = Bootstrap(app)
+
+from app import routes, models, errors

app/__init__.py

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+from app import app
+from flask import render_template
+
+
+@app.route('/')
+@app.route('/index')
+def index():
+    return render_template('index.html', title='Home')

app/__pycache__/__init__.cpython-38.pyc

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+{% extends 'bootstrap/base.html' %}
+
+{% block title %}
+    {% if title %}
+       {{ title }} - Flask Auth
+    {% else %}
+        Welcome to Third Party Authentication
+    {% endif %}
+{% endblock %}
+
+{% block navbar %}
+    <nav class="navbar navbar-default">
+        <div class="container">
+            <div class="navbar-header">
+                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
+                    <span class="sr-only">Toggle navigation</span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                </button>
+                <a class="navbar-brand" href="{{ url_for('index') }}">Flask Auth</a>
+            </div>
+            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
+                <ul class="nav navbar-nav">
+                    <li><a href="{{ url_for('index') }}">Home</a></li>
+                </ul>                
+            </div>
+        </div>
+    </nav>
+{% endblock %}
+
+{% block content %}
+    <div class="container">
+        {% with messages = get_flashed_messages() %}
+            {% if messages %}
+                {% for message in messages %}
+                   <div class="alert alert-info" role='alert'>
+                       {{ message }}
+                   </div>
+                {% endfor %}
+            {% endif %}
+        {% endwith %}
+
+        {% block app_content %}{% endblock %}
+    </div>
+{% endblock %}

app/__pycache__/errors.cpython-38.pyc

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+{% extends 'base.html' %}
+
+{% block app_content %}
+    <h1>Hi, you!</h1>
+{% endblock %}