Isolate app with Blueprint

Author: rafaelhenrique

tvseries/__init__.py

@@ -1,12 +1,11 @@
 from flask import Flask
-from flask_sqlalchemy import SQLAlchemy
 
 from tvseries import config
+from tvseries.ext import db
+from tvseries.core import core_blueprint
 
 print("Problem: Hen and egg (python circular imports)")
 app = Flask(__name__)
 app.config.from_object(config.DevelopmentConfig)
-
-db = SQLAlchemy(app)
-
-from tvseries.core import views  # noqa
+app.register_blueprint(core_blueprint, url_prefix='/')
+db.init_app(app)

tvseries/core/__init__.py

@@ -0,0 +1,7 @@
+from flask import Blueprint
+
+core_blueprint = Blueprint('core', __name__, template_folder='templates',
+                           static_folder='static', static_url_path='core')
+
+from tvseries.core import views  # noqa
+from tvseries.core import models  # noqa

tvseries/core/models.py

@@ -1,4 +1,4 @@
-from tvseries import db
+from tvseries.ext import db
 
 
 class TVSerie(db.Model):

tvseries/static/img/arrow_1000x400.jpg renamed to tvseries/core/static/img/arrow_1000x400.jpg

@@ -3,23 +3,22 @@
 
 from flask import render_template, url_for, redirect, request
 
-from tvseries import app, db
+from tvseries.ext import db
+from tvseries.core import core_blueprint
 from tvseries.core.models import TVSerie
-# ou ....
-# from .models import TVSerie
 
 
-@app.route('/')
+@core_blueprint.route('')
 def home(name=None):
-    image_directory = os.path.join(app.static_folder, 'img')
+    image_directory = os.path.join(core_blueprint.static_folder, 'img')
     image_filenames = os.listdir(image_directory)
     image = os.path.join('img', choice(image_filenames))
-    img_url = url_for('static', filename=image)
+    img_url = url_for('core.static', filename=image)
     series = TVSerie.query.all()
     return render_template('home.html', series=series, image=img_url)
 
 
-@app.route('/add', methods=['GET', 'POST'])
+@core_blueprint.route('add', methods=['GET', 'POST'])
 def add():
     if request.method == 'POST':
         name = request.form.to_dict().get('serie-name')

tvseries/static/img/flash_1000x400.png renamed to tvseries/core/static/img/flash_1000x400.png

@@ -0,0 +1,3 @@
+from flask_sqlalchemy import SQLAlchemy
+
+db = SQLAlchemy()

tvseries/static/img/game_of_thrones_1000x400.png renamed to tvseries/core/static/img/game_of_thrones_1000x400.png

@@ -7,16 +7,16 @@
                 <span class="icon-bar"></span>
                 <span class="icon-bar"></span>
             </button>
-            <a class="navbar-brand" href="{{ url_for('home') }}">
+            <a class="navbar-brand" href="{{ url_for('core.home') }}">
                 <span class="glyphicon glyphicon-home"></span>
             </a>
         </div>
         <div class="collapse navbar-collapse">
             <ul class="nav navbar-nav">
-                <li class="dropdown {% if url_for('add') in request.path %}active{% endif %}">
+                <li class="dropdown {% if url_for('core.add') in request.path %}active{% endif %}">
                     <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Seriados <span class="caret"></span></a>
                     <ul class="dropdown-menu" role="menu">
-                        <li><a href="{{ url_for('add') }}"><span class="glyphicon glyphicon-plus-sign"></span>&nbsp;&nbsp;Adicionar</a></li>
+                        <li><a href="{{ url_for('core.add') }}"><span class="glyphicon glyphicon-plus-sign"></span>&nbsp;&nbsp;Adicionar</a></li>
                     </ul>
                 </li>
             </ul>

tvseries/static/img/how_i_met_your_mother_1000x400.jpg renamed to tvseries/core/static/img/how_i_met_your_mother_1000x400.jpg

@@ -50,7 +50,7 @@ def test_navbar(self, db):
 
     @pytest.fixture
     def db(self, app, request):
-        from tvseries import db as db_test
+        from tvseries.ext import db as db_test
 
         def teardown():
             db_test.drop_all()