Фух, готово. Осталось ридми.

kashin_maxim_lab_3/faculty_service/app.py

@@ -15,11 +15,15 @@ def handle_faculties():
     if request.method == 'POST':
         dto = request.get_json()['dto']
         faculty = faculty_service.create_faculty(dto['name'], dto['university_id'])
+
+        # Проверьте, является ли faculty словарем или объектом
+        if isinstance(faculty, dict):
+            return jsonify({"id": faculty['id'], "name": faculty['name'], "university_id": faculty['university_id']})
+
         return jsonify({"id": faculty.id, "name": faculty.name, "university_id": faculty.university_id})
 
     return jsonify(faculty_service.get_all_faculties())
 
-
 @app.route('/faculties/<int:faculty_id>', methods=['GET', 'PUT', 'DELETE'])
 def handle_faculty(faculty_id):
     if request.method == 'PUT':
@@ -37,6 +41,18 @@ def handle_faculty(faculty_id):
     university = faculty_service.get_faculty(faculty_id)
     return jsonify({"id": university.id, "name": university.name, "university_id": university.university_id})
 
+@app.route('/faculties/<int:faculty_id>/universities', methods=['POST'])
+def add_university(faculty_id):
+    dto = request.get_json()
+    university_id = dto['university_id']
+    faculty_service.add_university_to_faculty(faculty_id, university_id)
+    return Response(status=204)
+
+@app.route('/faculties/<int:faculty_id>/universities/<int:university_id>', methods=['DELETE'])
+def remove_university(faculty_id, university_id):
+    faculty_service.remove_university_from_faculty(faculty_id, university_id)
+    return Response(status=204)
+
 
 if __name__ == '__main__':
     app.run(host='0.0.0.0', use_reloader=False, port=8082)

kashin_maxim_lab_3/faculty_service/db.py

@@ -13,3 +13,7 @@ class Faculty(db.Model):
             "name": self.name,
             "university_id": self.university_id
         }
+
+class FacultyUniversity(db.Model):
+    faculty_id = db.Column(db.Integer, db.ForeignKey('faculty.id'), primary_key=True)
+    university_id = db.Column(db.Integer, db.ForeignKey('university.id'), primary_key=True)

kashin_maxim_lab_3/faculty_service/init.sql

@@ -3,3 +3,14 @@ CREATE TABLE IF NOT EXISTS faculty (
     name VARCHAR(100) NOT NULL,
     university_id INT NOT NULL
 );
+
+CREATE TABLE IF NOT EXISTS university (
+    id SERIAL PRIMARY KEY,
+    name VARCHAR(100) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS faculty_university (
+    faculty_id INT REFERENCES faculty(id),
+    university_id INT REFERENCES university(id),
+    PRIMARY KEY (faculty_id, university_id)
+);

kashin_maxim_lab_3/faculty_service/service.py

@@ -1,4 +1,5 @@
-from db import db, Faculty
+from db import db, Faculty, FacultyUniversity
+
 
 class FacultyService:
     def get_all_faculties(self):
@@ -11,7 +12,7 @@ class FacultyService:
         faculty = Faculty(name=name, university_id=university_id)
         db.session.add(faculty)
         db.session.commit()
-        return faculty.to_dict()
+        return faculty
 
     def update_faculty(self, faculty_id, name):
         faculty = self.get_faculty(faculty_id)
@@ -24,5 +25,15 @@ class FacultyService:
     def delete_faculty(self, faculty_id):
         faculty = self.get_faculty(faculty_id)
         if faculty:
-            db.session.delete(faculty)
+            db.session.delete(Faculty.query.get(faculty_id))
+            db.session.commit()
+    def add_university_to_faculty(self, faculty_id, university_id):
+        association = FacultyUniversity(faculty_id=faculty_id, university_id=university_id)
+        db.session.add(association)
+        db.session.commit()
+
+    def remove_university_from_faculty(self, faculty_id, university_id):
+        association = FacultyUniversity.query.filter_by(faculty_id=faculty_id, university_id=university_id).first()
+        if association:
+            db.session.delete(association)
             db.session.commit()

kashin_maxim_lab_3/university_service/app.py

@@ -15,7 +15,7 @@ def handle_universities():
     if request.method == 'POST':
         dto = request.get_json()['dto']
         university = university_service.create_university(dto['name'])
-        return jsonify({"id": university.id, "name": university.name, "established_at": university.established_at})
+        return jsonify(university)
 
     universities = university_service.get_all_universities()
     return jsonify(universities)
@@ -37,6 +37,18 @@ def handle_university(university_id):
         return Response(status=404)
     return jsonify(university)
 
+@app.route('/universities/<int:university_id>/faculties', methods=['POST'])
+def add_faculty(university_id):
+    dto = request.get_json()
+    faculty_id = dto['faculty_id']
+    university_service.add_faculty_to_university(university_id, faculty_id)
+    return Response(status=204)
+
+@app.route('/universities/<int:university_id>/faculties/<int:faculty_id>', methods=['DELETE'])
+def remove_faculty(university_id, faculty_id):
+    university_service.remove_faculty_from_university(university_id, faculty_id)
+    return Response(status=204)
+
 
 if __name__ == '__main__':
     app.run(host='0.0.0.0', use_reloader=False, port=8081)

kashin_maxim_lab_3/university_service/db.py

@@ -14,3 +14,7 @@ class University(db.Model):
             "name": self.name,
             "established_at": self.established_at.isoformat()
         }
+
+class FacultyUniversity(db.Model):
+    faculty_id = db.Column(db.Integer, db.ForeignKey('faculty.id'), primary_key=True)
+    university_id = db.Column(db.Integer, db.ForeignKey('university.id'), primary_key=True)

kashin_maxim_lab_3/university_service/init.sql

@@ -1,4 +1,17 @@
 CREATE TABLE IF NOT EXISTS university (
+    id SERIAL PRIMARY KEY,
+    name VARCHAR(100) NOT NULL,
+    established_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+
+CREATE TABLE IF NOT EXISTS faculty (
     id SERIAL PRIMARY KEY,
     name VARCHAR(100) NOT NULL
 );
+
+CREATE TABLE IF NOT EXISTS faculty_university (
+    faculty_id INT REFERENCES faculty(id),
+    university_id INT REFERENCES university(id),
+    PRIMARY KEY (faculty_id, university_id)
+);

kashin_maxim_lab_3/university_service/service.py

@@ -1,4 +1,5 @@
-from db import db, University
+from db import db, University, FacultyUniversity
+
 
 class UniversityService:
     def get_all_universities(self):
@@ -28,3 +29,14 @@ class UniversityService:
         if university:
             db.session.delete(University.query.get(university_id))
             db.session.commit()
+
+    def add_faculty_to_university(self, university_id, faculty_id):
+        association = FacultyUniversity(university_id=university_id, faculty_id=faculty_id)
+        db.session.add(association)
+        db.session.commit()
+
+    def remove_faculty_from_university(self, university_id, faculty_id):
+        association = FacultyUniversity.query.filter_by(university_id=university_id, faculty_id=faculty_id).first()
+        if association:
+            db.session.delete(association)
+            db.session.commit()