我有课程
n
添加多种成分是否正确?
CREATE TABLE Operations(
operation_id int not null AUTO_INCREMENT,
PRIMARY KEY(operation_id),
openingtime time,
closingTime time,
operationDay ?????
restaurant_id int,
FOREIGN KEY(restaurant_id)
REFERENCES restaurant(restaurant_id)
ON UPDATE CASCADE
);
example
id = 1
openingtime = 7:00am
closingTime = 10:00pm
operationDay = monday
restaurant_id = 2
还有其他办法吗?
答案 0 :(得分:1)
关闭! RLMArray
遵循NSMutableArray
的方法命名约定。
所以正确的方法名称是
[realm beginWriteTransaction]
[recipe.ingredients addObject:tomato];
[recipe.ingredients addObject:onion];
[realm.commitWriteTransaction];
查看RLMArray
's documentation以获取可以使用的完整方法列表。例如,更简化的添加对象的方法可以是:
[realm beginWriteTransaction]
[recipe.ingredients addObjects:@[tomato, onion]];
[realm.commitWriteTransaction];