Fetching results with a list of CKQuery - swift

Question

I have a CKRecord of recipes that gets fetched to an iOS app. Once I have that list, I need to prioritize the results of recipes that are the highest suggested "likedIds" which is a list of integers representing recipe_ids (please see my dataset image below), then display the remaining recipes below that. I can't merely sort by highest rated recipes because I'm using collaborative filtering elsewhere in the project to suggest specific recipes over others, but I still want to list them all.
Here in this code below I am appending the results of NSPredicates to a list of CKQuery called 'queries'. Now that I have that [CKquery], what do I do with it? How do I fetch the results I need? Which method do I use, if publicDB.perform() isn't the right method (since I get an 'expected argument type' error)? Below, I tried using a for loop inside of the AttachToMainThread() function that I wrote, but I get 3 different random results at refresh, recipes in the "likedIds" list, recipes not the "likedIds" list, or nothing at all, yet no SIGABRT errors which is nice.
TL;DR
What do I do with my CKquery list to fetch results?
Thank you for your time!
Just the code focusing on the primary subject:
import Foundation
import CloudKit
class Model {
// MARK: - iCloud Info
let container: CKContainer
let publicDB: CKDatabase
private(set) var recipes: [Recipe] = []
static var currentModel = Model()
init() {
container = CKContainer.default()
publicDB = container.publicCloudDatabase
privateDB = container.privateCloudDatabase
}
#objc func refresh(_ completion: #escaping (Error?) -> Void) {
var queries = [CKQuery] ()
// Function that returns a CKQuery
let likedQuery = GetRecipesWithLikedIds()
queries.append(likedQuery)
// Function that returns a CKQuery
let unlikedQuery = GetRecipesWithoutLikedIds()
queries.append(unlikedQuery)
AttachToMainThread(forQuery: queries, completion)
}
private func AttachToMainThread(forQuery queries: [CKQuery],
_ completion: #escaping (Error?) -> Void) {
for q in queries {
publicDB.perform(q,
inZoneWith: CKRecordZone.default().zoneID) { [weak self] results, error in
guard let self = self else { return }
if let error = error {
DispatchQueue.main.async {
completion(error)
}
return
}
guard let results = results else { return }
self.recipes = results.compactMap {
Recipe(record: $0, database: self.publicDB)
}
DispatchQueue.main.async {
completion(nil)
}
}
}
}
}
My entire code:
import Foundation
import CloudKit
class Model {
// MARK: - iCloud Info
let container: CKContainer
let publicDB: CKDatabase
var carbohydrate = "rice"
var vegetable = "tomatoes"
// MARK: - Properties
private(set) var recipes: [Recipe] = []
static var currentModel = Model()
init() {
container = CKContainer.default()
publicDB = container.publicCloudDatabase
privateDB = container.privateCloudDatabase
}
#objc func refresh(_ completion: #escaping (Error?) -> Void) {
var queries = [CKQuery] ()
let likedQuery = GetRecipesWithLikedIds()
queries.append(likedQuery)
let unlikedQuery = GetRecipesWithoutLikedIds()
queries.append(unlikedQuery)
AttachToMainThread(forQuery: queries, completion)
}
private func AttachToMainThread(forQuery queries: [CKQuery],
_ completion: #escaping (Error?) -> Void) {
for q in queries {
publicDB.perform(q,
inZoneWith: CKRecordZone.default().zoneID) { [weak self] results, error in
guard let self = self else { return }
if let error = error {
DispatchQueue.main.async {
completion(error)
}
return
}
guard let results = results else { return }
self.recipes = results.compactMap {
Recipe(record: $0, database: self.publicDB)
}
for r in self.recipes {
self.PrettyPrintRecipes(rName: r.name, rId: String(r.recipe_id), rIng: r.ingredients)
}
DispatchQueue.main.async {
completion(nil)
}
}
}
}
func GetRecipesWithLikedIds() -> CKQuery {
let searchTextA: [String] = [carbohydrate," "+carbohydrate,carbohydrate+"s",carbohydrate+"es"]
let subPred1 = NSPredicate (format: "ANY ingredients IN %#",argumentArray: [searchTextA])
let searchTextB: [String] = [vegetable," "+vegetable,vegetable+"s",vegetable+"es"]
let subPred2 = NSPredicate (format: "ANY ingredients IN %#",argumentArray: [searchTextB])
let likedIds: [Int] = [13733,32441]
let subPred3 = NSPredicate (format: "NOT (recipe_id IN %#)", likedIds)
let and_pred1 = NSCompoundPredicate(andPredicateWithSubpredicates: [subPred1, subPred2])
let and_pred2 = NSCompoundPredicate(andPredicateWithSubpredicates: [subPred3])
let predicate = NSCompoundPredicate(andPredicateWithSubpredicates: [and_pred1, and_pred2])
return CKQuery(recordType: "Recipe", predicate: predicate)
}
func GetRecipesWithoutLikedIds() -> CKQuery {
let searchTextA: [String] = [carbohydrate," "+carbohydrate,carbohydrate+"s",carbohydrate+"es"]
let subPred1 = NSPredicate (format: "ANY ingredients IN %#",argumentArray: [searchTextA])
let searchTextB: [String] = [vegetable," "+vegetable,vegetable+"s",vegetable+"es"]
let subPred2 = NSPredicate (format: "ANY ingredients IN %#",argumentArray: [searchTextB])
let likedIds: [Int] = [13733,32441]
let subPred3 = NSPredicate (format: "recipe_id IN %#",argumentArray: [likedIds])
let and_pred1 = NSCompoundPredicate(andPredicateWithSubpredicates: [subPred1, subPred2])
let and_pred2 = NSCompoundPredicate(andPredicateWithSubpredicates: [subPred3])
let predicate = NSCompoundPredicate(andPredicateWithSubpredicates: [and_pred1, and_pred2])
return CKQuery(recordType: "Recipe", predicate: predicate)
}
func PrettyPrintRecipes(rName: String, rId: String, rIng: [String]) {
print("Name: "+rName)
print("Recipe_id: "+rId)
print("Ingredients:")
for s in 0..<rIng.count {
print("\t"+String(s)+": "+rIng[s])
}
}
public func printVegetable(){
print(vegetable)
}
}
An Example Image of my Dataset