fix: courses show count of courses

flaskr/templates/courses.html

@@ -10,6 +10,8 @@
     }
 </style>
 
+<p>There is {{count}} courses.</p>
+
 <table>
     {% if courses_exist %}
     <tr>

flaskr/utils/courses.py

@@ -2,9 +2,15 @@ from flaskr.database import db
 
 
 def query_courses():
-    sql = "SELECT courses.name, games.name, cups.name FROM courses JOIN games ON games.id=courses.game_id JOIN cups ON cups.id=courses.cup_id"
+    sql = """
+    SELECT courses.name, games.name, cups.name
+    FROM courses
+        JOIN games ON games.id=courses.game_id
+        JOIN cups ON cups.id=courses.cup_id"""
     result = db.session.execute(sql).fetchall()
-    return result
+    sql = "SELECT count(courses.id) FROM courses"
+    count = db.session.execute(sql).fetchone()
+    return result, count[0]
 
 
 def query_course_by_name(course_name: str):

flaskr/views/courses.py

@@ -6,10 +6,12 @@ from flaskr.utils.courses import query_courses, query_course_by_name
 
 @app.route("/courses")
 def get_courses():
-    courses = query_courses()
+    courses, count = query_courses()
     if courses is None:
-        return render_template("courses.html", courses_exist=False)
-    return render_template("courses.html", courses=courses, courses_exist=True)
+        return render_template("courses.html", courses_exist=False, count=count)
+    return render_template(
+        "courses.html", courses=courses, courses_exist=True, count=count
+    )
 
 
 @app.route("/courses/<int:course_id>")