def delete_course_memcached(id):
"""
删除特定课程的缓存(课程被删除后自动执行)
"""
course = Courses.query.get_or_404(id)
lru.delete(course)
lru.save()
def delete_course_memcached(id):
"""
删除特定课程的缓存(课程被删除后自动执行)
"""
course = Courses.query.get_or_404(id)
lru.delete(course)
lru.save()
def update_course_memcached(id):
"""
更新特定id课程的缓存
"""
course = Courses.query.get_or_404(id)
lru.delete(course)
lru.set(course.to_json(), [course.name, course.teacher])
lru.save()
def update_course_memcached(id):
"""
更新特定id课程的缓存
"""
course = Courses.query.get_or_404(id)
lru.delete(course)
lru.set(course.to_json(), [course.name, course.teacher])
lru.save()
def read_data2_memcached():
"""
将postgresql数据库中的课程搜索数据
读入LRU并写入硬盘(数据库读取开销)
"""
courses = Courses.query.all()
for course in courses:
lru.set(course.to_json(), [course.name, course.teacher])
lru.save() # 数据存储硬盘
def delete_course(id):
course = Courses.query.get_or_404(id)
if request.method == "DELETE":
db.session.delete(course)
db.session.commit()
# 自动清除缓存
lru.delete(course)
lru.save()
return jsonify({"message": "该课程已被删除"})
def delete_course(id):
course = Courses.query.get_or_404(id)
if request.method == "DELETE":
db.session.delete(course)
db.session.commit()
# 自动清除缓存
lru.delete(course)
lru.save()
return jsonify({'message': '该课程已被删除'})
def read_data2_memcached():
"""
将postgresql数据库中的课程搜索数据
读入LRU并写入硬盘(数据库读取开销)
"""
courses = Courses.query.all()
for course in courses:
lru.set(course.to_json(), [course.name, course.teacher])
lru.save() # 数据存储硬盘
