Fetch all relationship data - Core Data - swift

Question

I am new to core data. I am fetching data from API and then saving them to core data.This is my dataModel.
Here is my API Structure,
{
"name" : "name here",
"content" :[
{
"homeContentItems" : [
{
"some objects" : "values",
"contentItemDetails": [
{
},
{
}
]
},
{
"some objects" : "values",
"contentItemDetails": [
{
},
{
}
]
}
]
},
{
"homeContentItems" : [
{
"some objects" : "values",
"contentItemDetails": [
{
},
{
}
]
},
{
"some objects" : "values",
"contentItemDetails": [
{
},
{
}
]
}
]
}
]
}
How can I fetch data from the Entity so I can get all data from related entity too?
I Have never worked with database before so its bit complected for me. Any help will be much appreciated.
let informedDataFetch = NSFetchRequest<NSFetchRequestResult>(entityName: "Informed360Entity")
informedDataFetch.fetchLimit = 1
informedDataFetch.predicate = NSPredicate()
let tableviewData = try! context.fetch(informedDataFetch)
let tdata : Informed360Entity = tableviewData.first as! Informed360Entity
var contentData = tdata.toContent?.allObjects as? [ContentEntity]
I tried this code and getting data from ContentEntity table. How can I get other 2 tables data too so I can use to display in tableview.

Answer 1

You do it the same way as you did with ContentEntity but now you use the two properties that represent the relationships, contentDetailItem and homeContentItems, which both will return a Set.
for content in contentData {
let contentDetailItems = content.contentDetailItem
let homeContents = content.homeContentItems
//...
}