nspredicate

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NSPredicate concatenating attributes

I m trying to figure out how to concatenate attribute names. I have a county and a district attribute that I want to query like[详细]

2023-04-04 09:53 分类：问答
How to write a NSPredicate to obtain all items whose ids are in an array?

In my core data db, every item has a string id which is an url to indicate whom this item belongs to.[详细]

2023-04-04 07:52 分类：问答
Complex CoreData query (SQL syntax wanted as well)?

I have 2 entities: Performance.start (NSDate)Location.coordinates Performance.end(NSDate)Location.name_extern[详细]

2023-04-04 05:44 分类：问答
Remove brackets and quotes when displaying in textfield after using NSPredicate

I would like to remove the brackets and quotes when it displays in textfield. I am using NSPredicate to get the contents that I want.[详细]

2023-04-03 23:46 分类：问答
Display value from dictionary after using NSPredicate

I am currently using NSPredicate to search if a certain key has a certain value in plist, if it matches, I want it to display one of the values in the dictionary, not the entire dictionary, but the wa[详细]

2023-04-03 17:55 分类：问答
Complex CoreData query

I am very new to CoreData and would like to do something like this. I have 2 Entities Cave.titleCondition.date[详细]

2023-04-03 16:38 分类：问答
nspredicate with coredata fetchrequest

I\'m working with an app using CoreData. I have a simple structure: Name Lastname I need to update an entry so I do:[详细]

2023-04-03 14:38 分类：问答
Setup Fetch To Search For SuperClass?

I have a NSFetch that searches for objects in the Superclass which works fine.There are 4 subclasses.I want to have it search for 3 out of the 4 subclasses instead.One of the 4 subcl开发者_运维问答ass[详细]

2023-04-03 03:35 分类：问答
Fastest way to find a contact matching name?

I have a T开发者_如何学JAVAableView filled with NSArray containing NSString names of some contacts from address book, in detailTextLabel of cells some information from that contact have to be shown. F[详细]

2023-04-02 05:02 分类：问答
about searching by using NSPredicate

This is the structure of my class ContentItem @interface ContentItem : NSObject { //properties of this class[详细]

2023-04-02 04:25 分类：问答