Trying to retrieve data in my subcategory
I am trying to get information from Subcategories, I have managed to retrieve subcategories in category using this code.
But, having some Trouble calling the data that is in a subcategories.
// Let's download the recipe list and its detail
self.ref.child("Categories").observe(.childAdded) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.subcollectionView.reloadData()
}
}
I have posted this before but had an issue with the account.
This is the code That I tried to use to reach the information in subcategories.
An example of the firebase data :
the error:
Would greatly appreciate an example of what I should do, As I am new to swift coding
@IBOutlet weak var card_cv: UICollectionView!
reference for the database
var refCategories: DatabaseReference!
var subcategories = [String]()
// declare a string to receive the category name
var subCategoryName:String!
override func viewDidLoad() {
super.viewDidLoad()
// declare the reference to database
refCategories = Database.database().reference()
// setting the subcategory name as view controller's table
self.title = subCategoryName
// let's set delegate for the tableview
self.card_cv.dataSource = self
self.card_cv.delegate = self
// function to download list from database
self.downloadSubCategoriesFromDatabase()
}
Custom function download
func downloadSubCategoriesFromDatabase(){
self.subcategories.removeAll()
// download the snapshot
self.refCategories.child("Categories").child(subCategoryName).observeSingleEvent(of: .value) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.card_cv.reloadData()
}
}
ios swift firebase firebase-realtime-database
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
add a comment |
I am trying to get information from Subcategories, I have managed to retrieve subcategories in category using this code.
But, having some Trouble calling the data that is in a subcategories.
// Let's download the recipe list and its detail
self.ref.child("Categories").observe(.childAdded) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.subcollectionView.reloadData()
}
}
I have posted this before but had an issue with the account.
This is the code That I tried to use to reach the information in subcategories.
An example of the firebase data :
the error:
Would greatly appreciate an example of what I should do, As I am new to swift coding
@IBOutlet weak var card_cv: UICollectionView!
reference for the database
var refCategories: DatabaseReference!
var subcategories = [String]()
// declare a string to receive the category name
var subCategoryName:String!
override func viewDidLoad() {
super.viewDidLoad()
// declare the reference to database
refCategories = Database.database().reference()
// setting the subcategory name as view controller's table
self.title = subCategoryName
// let's set delegate for the tableview
self.card_cv.dataSource = self
self.card_cv.delegate = self
// function to download list from database
self.downloadSubCategoriesFromDatabase()
}
Custom function download
func downloadSubCategoriesFromDatabase(){
self.subcategories.removeAll()
// download the snapshot
self.refCategories.child("Categories").child(subCategoryName).observeSingleEvent(of: .value) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.card_cv.reloadData()
}
}
ios swift firebase firebase-realtime-database
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
add a comment |
I am trying to get information from Subcategories, I have managed to retrieve subcategories in category using this code.
But, having some Trouble calling the data that is in a subcategories.
// Let's download the recipe list and its detail
self.ref.child("Categories").observe(.childAdded) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.subcollectionView.reloadData()
}
}
I have posted this before but had an issue with the account.
This is the code That I tried to use to reach the information in subcategories.
An example of the firebase data :
the error:
Would greatly appreciate an example of what I should do, As I am new to swift coding
@IBOutlet weak var card_cv: UICollectionView!
reference for the database
var refCategories: DatabaseReference!
var subcategories = [String]()
// declare a string to receive the category name
var subCategoryName:String!
override func viewDidLoad() {
super.viewDidLoad()
// declare the reference to database
refCategories = Database.database().reference()
// setting the subcategory name as view controller's table
self.title = subCategoryName
// let's set delegate for the tableview
self.card_cv.dataSource = self
self.card_cv.delegate = self
// function to download list from database
self.downloadSubCategoriesFromDatabase()
}
Custom function download
func downloadSubCategoriesFromDatabase(){
self.subcategories.removeAll()
// download the snapshot
self.refCategories.child("Categories").child(subCategoryName).observeSingleEvent(of: .value) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.card_cv.reloadData()
}
}
ios swift firebase firebase-realtime-database
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
I am trying to get information from Subcategories, I have managed to retrieve subcategories in category using this code.
But, having some Trouble calling the data that is in a subcategories.
// Let's download the recipe list and its detail
self.ref.child("Categories").observe(.childAdded) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.subcollectionView.reloadData()
}
}
I have posted this before but had an issue with the account.
This is the code That I tried to use to reach the information in subcategories.
An example of the firebase data :
the error:
Would greatly appreciate an example of what I should do, As I am new to swift coding
@IBOutlet weak var card_cv: UICollectionView!
reference for the database
var refCategories: DatabaseReference!
var subcategories = [String]()
// declare a string to receive the category name
var subCategoryName:String!
override func viewDidLoad() {
super.viewDidLoad()
// declare the reference to database
refCategories = Database.database().reference()
// setting the subcategory name as view controller's table
self.title = subCategoryName
// let's set delegate for the tableview
self.card_cv.dataSource = self
self.card_cv.delegate = self
// function to download list from database
self.downloadSubCategoriesFromDatabase()
}
Custom function download
func downloadSubCategoriesFromDatabase(){
self.subcategories.removeAll()
// download the snapshot
self.refCategories.child("Categories").child(subCategoryName).observeSingleEvent(of: .value) { (snapshot) in
self.subcategories.removeAll()
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
self.subcategories.append(rest.key)
}
self.card_cv.reloadData()
}
}
ios swift firebase firebase-realtime-database
ios swift firebase firebase-realtime-database
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
edited Nov 21 '18 at 4:53
Makyen
20.7k84176
20.7k84176
asked Nov 20 '18 at 22:30
teetee
11
asked Nov 20 '18 at 22:30
teetee
11
asked Nov 20 '18 at 22:30
teetee
11
11
add a comment |
add a comment |
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