Coredata中的嵌套数据过滤器？

发布于 2025-02-07 01:57:17 字数 500 浏览 0 评论 0原文

是否可以过滤Coredata中的数据？使用谓词我已经按名称进行排序。但是我需要按日期进行排序，例如，每月选择付款。

有两个实体：

CategoriesEntity
name:String

TransactionsEntity:
sum: Double
date: Date
note: String

当过滤时，我会按类别获得列表，

let predicate = filterKey.isEmpty ? nil : NSPredicate(format: "name CONTAINS[cd] %@", filterKey)
fetchRequest = FetchRequest<T>(entity: T.entity(), sortDescriptors: [], predicate: predicate)

但是如果该列表是实体类别中的嵌套实体，我该如何按日期进行交易？

UPD：类别和交易是一对多连接的

原文

Is it possible to filter the data in CoreData?
Using predicate I have sorted by name.
But I need to sort by date, make a selection of payments per month, for example.

There are two entities:

CategoriesEntity
name:String

TransactionsEntity:
sum: Double
date: Date
note: String

when filtering i get a list by category

let predicate = filterKey.isEmpty ? nil : NSPredicate(format: "name CONTAINS[cd] %@", filterKey)
fetchRequest = FetchRequest<T>(entity: T.entity(), sortDescriptors: [], predicate: predicate)

but how can I take transactions by date from the request if it is a nested entity in the entity category?

upd: categories and transactions are connected One-to-many

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