django的model操作整理详解编程语言

    auther_obj = {"auther_name":"崔皓然","auther_age":1} 
    models.auther.objects.create( 
        **auther_obj 
    ) 

    models.auther.objects.create( 
        auther_name="周雍博", 
        auther_age=4 
    ) 

    obj = models.auther( 
        auther_name="崔洪艳", 
        auther_age=29 
    ) 
    obj.save() 

    obj = models.auther( 
        auther_name = "王仙枝", 
        auther_age = "50" 
    ) 
    obj.save() 

models.auther.objects.filter(auther_name="崔洪艳")[0].delete() 

    a_obj = models.auther.objects.get(id=1) 
 
 
    models.book.objects.create( 
        book_name = "python课程1", 
        book_price = 12, 
        book_auther = a_obj 
    ) 

    a_obj = models.auther.objects.get(id=5) 
 
    models.book.objects.create( 
        book_name = "java课程1", 
        book_price = 13, 
        book_auther_id = a_obj.id 
    ) 

    a_obj = models.auther.objects.get(id=2) 
 
    book_dict = { 
        "book_name":"python课程2", 
        "book_price":14, 
        "book_auther_id":a_obj.id 
    } 
 
    obj = models.book.objects.create( 
        **book_dict 
    ) 

    a_obj = models.auther.objects.get(id=4) 
 
    book_dict = { 
        "book_name":"java课程2", 
        "book_price":15, 
        "book_auther":a_obj 
    } 
 
    models.book.objects.create( 
        **book_dict 
    ) 

    # 查询id为2的书的所有作者的信息 
    obj = models.book.objects.get(id=2) 
 
    print(obj.book_auther.auther_name) 
    print(obj.book_auther.auther_age) 
 
    obj = models.book.objects.filter(id=2).values("book_name","book_price","book_auther__id","book_auther__auther_name","book_auther__auther_age") 
 
    print(obj) 

    # 查询id为2的作者的出版的书 
 
    obj = models.book.objects.filter(book_auther_id=2).values("book_name","book_price","book_auther__id","book_auther__auther_name","book_auther__auther_age") 
    print(obj) 
 
 
    obj = models.book.objects.get(book_auther_id=2) 
    print(obj.book_auther.auther_age) 
    print(obj.book_auther.auther_name) 
    print(obj.book_name) 

    # 查看出版社出版的书 
 
    obj = models.auther.objects.filter(id=2).values("auther_name","auther_age","book__book_name") 
    print(obj) 
 
    obj = models.auther.objects.get(id=2).book_set.values("book_name","book_price","book_auther__id","book_auther__auther_name","book_auther__auther_age") 
    print(obj) 

    b1 = models.book.objects.get(id=1) 
    b2 = models.book.objects.get(id=2) 
    b4 = models.book.objects.get(id=4) 
    b5 = models.book.objects.get(id=5) 
    models.publish.objects.get(id=1).publish_book.add( 
        b1,b2 
    ) 

    book_list = [b1,b2] 
 
    models.publish.objects.get(id=2).publish_book.add( 
        *book_list 
    ) 

    book_list = [b1,b2,b4,b5] 
    models.publish.objects.get(id=1).publish_book.set(book_list) 

    models.publish.objects.get(id=1).publish_book.remove(b1) 
 
    book_list = [b2, ] 
 
    models.publish.objects.get(id=1).publish_book.remove(*book_list)　　

    obj = models.publish.objects.get(id=1).publish_book.values("book_name","publish__publish_name") 
    print(obj) 
 
 
    obj = models.publish.objects.filter(id=1).values("publish_name","publish_book__book_name") 
    print(obj) 

    p1 = models.publish.objects.get(id=1) 
    p2 = models.publish.objects.get(id=2) 
    p3 = models.publish.objects.get(id=3) 
    b1.publish_set.add(p1,p2,p3) 

b1.publish_set.remove(p1) 

    obj = models.book.objects.get(id=1).publish_set.values("publish_name","publish_book__book_name")