PythonFreeCourse · issac211 · Feb 15, 2021 · Feb 16, 2021 · Feb 16, 2021 · Feb 16, 2021
diff --git a/README.md b/README.md
@@ -49,6 +49,7 @@ cp app/config.py.example app/config.py
 # Edit the variables' values.
 # Rendering JWT_KEY:
 python -c "import secrets; from pathlib import Path; f = Path('app/config.py'); f.write_text(f.read_text().replace('JWT_KEY_PLACEHOLDER', secrets.token_hex(32), 1));"
+```
 
 ### Running tox
 ```shell

diff --git a/app/demos/global_variable.py b/app/demos/global_variable.py
@@ -0,0 +1,56 @@
+from fastapi import APIRouter, Depends, Request
+from sqlalchemy.orm import Session
+
+from app.database.models import User
+from app.dependencies import get_db, templates
+
+
+router = APIRouter(
+    prefix="/global-variable",
+    tags=["global-variable"],
+    responses={404: {"description": "Not found"}},
+)
+
+
+def create_test_logged_user(session: Session):
+    user = User(
+        username='test_user',
+        email='my@email.po',
+        password='1a2s3d4f5g6',
+        full_name='My Name',
+        language_id=1,
+        telegram_id='',
+    )
+
+    user_query = session.query(User)
+    user_from_db = user_query.filter_by(username=user.username).first()
+    if not user_from_db:
+        session.add(user)
+        session.commit()
+        user = session.query(User).filter_by(username=user.username).first()
+    templates.env.globals['user'] = user
+
+
+# The way it will be written on the page
+# getting the logged in user
+session = next(get_db())
+create_test_logged_user(session)
+user_from_db = session.query(User).filter_by(username="test_user").first()
+
+# Placing a global variable
+templates.env.globals['user'] = user_from_db
+
+
+@router.get("/")
+async def global_var(
+    request: Request,
+    test_session: Session = Depends(get_db)
+):
+    # for testing
+    user_query = test_session.query(User)
+    user_from_db = user_query.filter_by(username="test_user").first()
+    templates.env.globals['user'] = user_from_db
+
+    return templates.TemplateResponse("global_var_test.html", {
+        "request": request
+    })
diff --git a/app/main.py b/app/main.py
@@ -45,6 +45,7 @@ def create_tables(engine, psql_environment):
     google_connect, invitation, joke, login, logout, profile,
     register, search, telegram, user, weekview, weight, whatsapp,
 )
+from app.demos import global_variable  # noqa: E402
 
 json_data_loader.load_to_database(next(get_db()))
 
@@ -79,6 +80,7 @@ async def swagger_ui_redirect():
     export.router,
     four_o_four.router,
     friendview.router,
+    global_variable.router,
     google_connect.router,
     invitation.router,
     joke.router,

diff --git a/app/templates/global_var_test.html b/app/templates/global_var_test.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+    <title>PyLendar global var test</title>
+
+</head>
+
+<body>
+
+    <div>
+        <ul>
+            {% if user %}
+            <li>
+                <a href="#"> Profile </a>
+            </li>
+            {% endif %}
+
+            {% if not user %}
+            <li>
+                <a href="#"> Sign In </a>
+            </li>
+            {% endif %}
+
+            {% if user %}
+            <li>
+              <a href="#"> Sign Out </a>
+            </li>
+            {% endif %}
+
+            {% if not user %}
+            <li>
+                <a href="#"> Sign Up </a>
+            </li>
+            {% endif %}
+
+            {% if user %}
+            <li>
+                <a href="#"> Agenda </a>
+            </li>
+            {% endif %}
+
+            {% if user %}
+            <li>
+                <a href="#"> Invitations </a>
+            </li>
+            {% endif %}
+
+            <li>
+                <a href="#">Search</a>
+            </li>
+
+        </ul>
+    </div>
+
+    <h2>username: {{ user.username }}</h2>
+
+</body>
+</html>
diff --git a/tests/client_fixture.py b/tests/client_fixture.py
@@ -6,6 +6,7 @@
 
 from app import main
 from app.database.models import Base, User
+from app.demos import global_variable
 from app.routers import (
     agenda, categories, event, friendview, google_connect,
     invitation, profile, weight,
@@ -44,6 +45,11 @@ def create_test_client(get_db_function) -> Generator[Session, None, None]:
     Base.metadata.drop_all(bind=test_engine)
 
 
+@pytest.fixture(scope="session")
+def global_var_test_client() -> Iterator[TestClient]:
+    yield from create_test_client(global_variable.get_db)
+
+
 @pytest.fixture(scope="session")
 def agenda_test_client() -> Generator[TestClient, None, None]:
     yield from create_test_client(agenda.get_db)

diff --git a/tests/test_global_variable.py b/tests/test_global_variable.py
@@ -0,0 +1,16 @@
+from app.demos.global_variable import create_test_logged_user
+
+
+def test_global_var(global_var_test_client, session):
+    response = global_var_test_client.get("/global-variable")
+    assert response.ok
+    assert b'test_user' not in response.content
+    assert b'Sign In' in response.content
+    assert b'Sign Up' in response.content
+
+    create_test_logged_user(session)
+    response = global_var_test_client.get("/global-variable")
+    assert response.ok
+    assert b'test_user' in response.content
+    assert b'Sign In' not in response.content
+    assert b'Profile' in response.content