Add the app factory.

Goutte
1 parent 1b39d5ec
Showing 1 changed file with 83 additions and 0 deletions Show diff stats
flaskr/__init__.py
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+#! ../venv/bin/python
+
+from flask import Flask
+from webassets.loaders import PythonLoader as PythonAssetsLoader
+
+from flaskr import assets
+from flaskr.models import db
+from flaskr.controllers.main import main
+
+from flaskr.extensions import (
+    cache,
+    assets_env,
+    debug_toolbar,
+    login_manager
+)
+
+from yaml import safe_load as yaml_safe_load
+
+from markdown import markdown
+
+
+def create_app(object_name):
+    """
+    An flask application factory, as explained here:
+    http://flask.pocoo.org/docs/patterns/appfactories/
+
+    Arguments:
+        object_name: the python path of the config object,
+                     e.g. flaskr.settings.ProductionConfig
+    """
+
+    app = Flask(__name__)
+
+    # We bypass object_name (for now)
+    object_name = 'flaskr.settings.DevelopmentConfig'
+
+    # Load configuration
+    app.config.from_object(object_name)
+
+    # initialize the cache
+    cache.init_app(app)
+
+    # initialize the debug tool bar
+    debug_toolbar.init_app(app)
+
+    # initialize SQLAlchemy
+    db.init_app(app)
+
+    login_manager.init_app(app)
+
+    # Import and register the different asset bundles
+    assets_env.init_app(app)
+    assets_loader = PythonAssetsLoader(assets)
+    for name, bundle in assets_loader.load_bundles().items():
+        assets_env.register(name, bundle)
+
+    # register our blueprints
+    app.register_blueprint(main)
+
+    # Load content data from the YAML file
+    content = {}
+    with open('content.yml', 'r') as content_file:
+        content = yaml_safe_load(content_file.read())
+
+    # VERSION
+    version = "0.0.0"
+    with open('VERSION', 'r') as version_file:
+        version = version_file.read().strip()
+
+    # Inject it as global template var
+    @app.context_processor
+    def inject_template_global_variables():
+        return dict(
+            content=content,
+            version=version,
+        )
+
+    # Markdown jinja2 filter
+    @app.template_filter('markdown')
+    def markdown_filter(text):
+        return markdown(text)
+
+    return app