From Dictionary to Array and back - swift

Question

So, a little background info:
I use a Dictionary to store info from wich a collectionview is populated and the info in the dictionary is paired with data from a urlsession.
My Dictionary looks like this:
var allDict = ["Section1": ["device1", "device2"], "Section2": ["device3", "device4"]]
I then use a struct to get an array which feeds my collectionview cells and sections:
struct Objects {
var sectionName : String!
var sectionObjects : [String]!
}
var objectArray = [Objects]()
for (key, value) in allDict {
objectArray.append(Objects(sectionName: key, sectionObjects: value))
}
The outcome is this:
ObjectArray: [__lldb_expr_134.Objects(sectionName: Section1, sectionObjects: ["device1", "device2"]), __lldb_expr_134.Objects(sectionName: Section2, sectionObjects: ["device3", "device4"])]
["device1", "device2"]
Now, the Problem is that I want to be able to rearrange the cells and I am able to rearrange the data in the array, but I have to get it back to the dictionary.
I'm aware that a dicitonary is unsorted, but while testing I never hat the problem that the devices changed there place in the array inside the dicitonary.
My idea is to rearrange the ObjectArray and then clear the dictionary and put the data back in.
So I tried to get the data from ObjectArray back using a for loop but I dont get it right, here is what I tried:
I found out I can access the data like this:
print(objectArray[0].sectionObjects)
["device1", "device2"]
So I tried:
for items in objectArray {
print(items)
for (name) in items.sectionObjects {
print(name)
}
}
there I get this:
device1
device2
But when I do:
for items in objectArray {
print(items)
for (name) in items.sectionName {
print(name)
}
}
I get this:
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All I want is something like:
for (sectionNAme, sectionObjects) in objectArray {
newDictionary[sectionName] += [sectionObjects]
}
but this gets me this: Expression type '[Objects]' is ambiguous without more context
Sorry, for the long text...

Answer 1

You have to write the loop in this way
for object in objectArray {
newDictionary[object.sectionName] = object.sectionObjects
}
object represents one Objects instance – by the way it's recommended to name the struct in singular form Object – you get the name with object.sectionName and the objects with object.sectionObjects
Notes:
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occurs because you treat the name string as array and you are iterating through the characters of the string.
Since you are using the implicit memberwise initializer anyway I would declare the struct with non-optional members as Section and shorten the member names:
struct Section {
var name : String
var objects : [String]
}