I try to create JSON with this structure:
var json: JSON = [
"params": [
"token": Utilities.token,
"language": "RU",
"billerId": biller.id,
],
"data": [
"serviceData": [
//I want put here additional data
]
]
]
in "serviceData" I want to add fields and values, but I don't know how much them and what is his name before compiling.
I try add this fields by this way:
for item in templateItems{
let key:String = item.name
let value: String = item.value
json["data"]["serviceData"][key] = value
}
according to https://github.com/SwiftyJSON/SwiftyJSON/tree/a1356035d2de68c155d05521292f0609ef7e69bb#literal-convertibles
but it doesn't work
It shouldn't be array, it is key-value dictionary.
Replace
"seviceData": []
With
"serviceData": [:]
The former defines an empty array. The latter defines an empty dictionary.
Related
Here I need to get the index of particular array in which the key value pair item.defaultShipping == "true" then I need to the get the index of particular array and to pass in model class so that in order to get corresponding data so that it should be passed in another Api but when I tried below method it showing an error that Contexual type 'Any' cannot be used within dictionary literal in let parameters below line can anyone help me how to resolve this issue ?
here is my code
var i = 0
for item in customerShippingAddressModel {
if item.defaultShipping == "true" {
}
i += 1
}
let arr = customerShippingAddressModel[i]
let parameters : [String: Any] = ["address":
[ "region": "\(arr.region.region)",
"region_code": "\(arr.region.regionCode)",
"region_id": "\(arr.region.regionId)",
"country_id": "\(arr.countryId)",
"company": "\(arr.company)",
"telephone": "\(arr.telephone)",
"postcode": "\(arr.postCode)",
"city": "\(arr.city)",
"firstname": "\(arr.firstName)",
"lastname": "\(arr.lastName)",
"email": "\(arr.email)",
"prefix": "",
"sameAsBilling": 1,
"street": ["0": "\((arr.customerStreet[0])!)",
"1": "\((arr.customerStreet[1])!)"]]]
print(parameters)
Since Swift 3 you can use enumerated() which will allow you to have the index and the value as the following:
for (index, item) in customerShippingAddressModel.enumerated() {
if item.defaultShipping == "true" {
// you can get the item and index value here.
}
}
I have an array of dictionary. I need to sort that array. The sorting shouldnt be like ascending or descending but it should be based on an another array contents.
EX: Lets say I have an array nammed array_unsorted and that array contains a lot of dictionary objects like d1, d2, d3, d4 etc. Each of the dictionary object has a key called key1 and each dictionary object has different value for that key such as Kammy, Maddy, Jessy. Lets say I have anohter sorted array which Maddy, Kammy, Jessy. Now the dictionary should be sorted in a way that the first element should the dictionary object in which the value for key1 should beMaddy`.
I cannot use SortDescriptor, because this will sort as an ascending or descending order based on the key passed to it.
I have tried my solution but I am ended up using so many nested loops. I feel like the solution I made so so pathetic that I dont even want to post the code here.
Any help would be so much appreciated.
EDIT: There can be multiple sorting arrays but as of now I am considering only one sorting array and then I can write the code for multiple sorting arrays.
How about this:
Create a new, empty dictionary with a String key, and a value of type Dictionary. Call it sourceItemsDict.
Loop through the dictionaries in your source array, and add each entry to your new dictionary, using your sort key as the dictionary key, and put the array entry as the value.
Create a new, empty array of dictionaries for your sorted results. call it sortedArray.
Now loop through your array that has the desired order in it. Fetch the item with that key from sourceItemsDict and append it to the end of sortedArray.
That should do it, and it should perform in O(n) time.
Try this:
func sort<T: Equatable>(arrayOfDict arr: [[String: T]], by key: String, order: [T]) -> [[String: T]] {
return arr.sorted {
guard let value0 = $0[key], let value1 = $1[key] else {
return false
}
guard let index0 = order.index(of: value0), let index1 = order.index(of: value1) else {
return false
}
return index0 < index1
}
}
let array_unsorted = [
["name": "Kammy", "city": "New York"],
["name": "Maddy", "city": "Cupertino"],
["name": "Jessy", "city": "Mountain View"]
]
let sortedByName = sort(arrayOfDict: array_unsorted, by: "name", order: ["Maddy", "Kammy", "Jessy"])
let sortedByCity = sort(arrayOfDict: array_unsorted, by: "city", order: ["Cupertino", "Mountain View", "New York"])
print(sortedByName)
print(sortedByCity)
Your question leaves a couple of unresolved scenarios:
1: What if the key is missing from a dictionary?
let array_unsorted = [
["name": "Kammy", "city": "New York"],
["city": "Las Vegas"],
["name": "Maddy", "city": "Cupertino"],
["name": "Jessy", "city": "Mountain View"]
]
let sortedByName = sort(arrayOfDict: array_unsorted, by: "name", order: ["Maddy", "Kammy", "Jessy"])
Should Las Vegas appear at the beginning or end of the sorted array?
2: What if you don't specify an order for a value?
let array_unsorted = [
["name": "Amy"],
["name": "Kammy", "city": "New York"],
["name": "Maddy", "city": "Cupertino"],
["name": "Jessy", "city": "Mountain View"]
]
let sortedByName = sort(arrayOfDict: array_unsorted, by: "name", order: ["Maddy", "Kammy", "Jessy"])
Now where should Amy be placed?
Check out this example:
let dic1 = ["name" : "a"]
let dic2 = ["name" : "b"]
let dic3 = ["name" : "c"]
let dic4 = ["name" : "d"]
let dic5 = ["name" : "e"]
let unsorted_array = [dic2,dic5,dic1,dic4,dic3]
func sortArrayByName(_ array:[[String:String]])->[[String:String]]{
var sortedArray:[[String:String]] = [[String:String]]()
var sortingOrder:[String] = [String]()
for eachDic in array{
if let name = eachDic["name"]{
sortingOrder.append(name)
sortingOrder.sort() // sorting logic here
if sortedArray.isEmpty{
sortedArray.append(eachDic)
} else {
let index = sortingOrder.index(of: name)!
sortedArray.insert(eachDic, at: index)
}
}
}
return sortedArray
}
let sorted_array = sortArrayByName(unsorted_array)
I'm having trouble creating a specific structure in JSON with Swift. I use Swifty JSON for parsing but I can't figure out how to create one.
I have this array which is filled by Id's and quantity Ints of products in a shopping basket . I need to get the array into my JSON but I don't know how.
If you could help me with this I would be very glad :)
var productArray = Array<(id: Int,quantity: Int)>()
let jsonObject: [String: AnyObject] = [
"order": 1,
"client" : 1,
"plats": [
for product in productArray
{
"id": product.id
"quantity": product.quantity
}
]
]
You can't just start looping through stuff while defining your dictionary. Here's another approach.
First, create your array:
var productArray = Array<(id: Int,quantity: Int)>()
Add some products (for testing):
productArray += [(123, 1000)]
productArray += [(456, 50)]
Map this array into a new array of dictionaries:
let productDictArray = productArray.map { (product) -> [String : Int] in
[
"id": product.id,
"quantity": product.quantity
]
}
Use the new mapped array in your JSON object:
let jsonObject: [String: AnyObject] = [
"order": 1,
"client" : 1,
"plats": productDictArray
]
You are not supposed to do any kind of looping/condition making block of codes while creating Array's or Dictionary. For that you need to execute that piece of code outside, create a variable and use it.
Do try this way.
var productArray = Array<(id: Int,quantity: Int)>()
var prods = [[String:Int]]()
for product in productArray
{
var eachDict = [String:Int]()
eachDict["id"] = product.id
eachDict["quantity"] = product.quantity
prods.append(eachDict)
}
let jsonObject: [String: AnyObject] = [
"order": 1,
"client" : 1,
"plats": prods
]
Here is my Json
{
"id": "63",
"name": "Magnet",
"price": "₹1250",
"description": "",
"image": [
"catalog/IMG-20150119-WA0012_azw1e3ge.jpg",
"catalog/IMG-20150119-WA0029_6mr3ndda.jpg",
"catalog/IMG-20150119-WA0028_ooc2ea52.jpg",
"catalog/IMG-20150119-WA0026_4wjz5882.jpg",
"catalog/IMG-20150119-WA0024_e38xvczi.jpg",
"catalog/IMG-20150119-WA0020_vyzhfkvf.jpg",
"catalog/IMG-20150119-WA0018_u686bmde.jpg",
"catalog/IMG-20150119-WA0016_c8ffp19i.jpg"
],
"thumb_image": [
"cache/catalog/IMG-20150119-WA0012_azw1e3ge-300x412.jpg",
"cache/catalog/IMG-20150119-WA0029_6mr3ndda-300x412.jpg",
"cache/catalog/IMG-20150119-WA0028_ooc2ea52-300x412.jpg",
"cache/catalog/IMG-20150119-WA0026_4wjz5882-300x412.jpg",
"cache/catalog/IMG-20150119-WA0024_e38xvczi-300x412.jpg",
"cache/catalog/IMG-20150119-WA0020_vyzhfkvf-300x412.jpg",
"cache/catalog/IMG-20150119-WA0018_u686bmde-300x412.jpg",
"cache/catalog/IMG-20150119-WA0016_c8ffp19i-300x412.jpg"
],
"specifications": [
{
"Fabrics": [
"Pure chiffon straight cut suits 48" length"
]
},
{
"MOQ": [
"Minimum 10"
]
}
]
}
In above json string the "specification" arraylist has dynamic number of key and each key has dynamic number of values
So how can parse this? Please help if anyone knows this...
Thanks in advance
There are multiple ways to do parsing. In your case specifications should be an array, so you'll be able to loop on each items.
You might want to :
Create your own JSON parse class / methods ;
Use an existing library to parse JSON.
For the second option, you can give a look at the following :
https://github.com/Wolg/awesome-swift#jsonxml-manipulation
var yourJson = data as? NSDictionary
if let id = yourJson.valueForKey("id") as String
{
//save your id from json
}
if let name = yourJson.valueForKey("name") as String
{
//save your name
}
...
if let images = yourJson.valueForKey("image") as NSArray
{
for im in images
{
//save image
}
//the same for all othe images
}
... And so on...
You should also watch some tutorials, to understand the basics of JSON parsing..
https://www.youtube.com/watch?v=MtcscjMxxq4
I have a dictionary of type < String, String>. It can access by index values like dictionary[0]. But i want to access each values in this in a simple way by using the key.
var rows: [Dictionary<String, String>] = []
rows = [..] // assigned some value
var value = rows[0]["id"]
println(rows[0]) // ["id": "2", "name": "Bob", "age": "19"]
println(value) // I get nil value
How can i access by this key format. Any suggestions. Thanks in advance.
I tried to read values from a CSV file. And assigned to rows. It works fine when i print rows[0] it shows the correct value. But on the next line if i print rows[0]["id"] it gives me a nil value. And i tried with manual dictionary like
rows = [["name": "alvin"]]
var value = rows[0]["name"]
println(value) // prints alvin
Whats the difference?
This could happen if your key has a space in it. Consider the following:
var rows: [Dictionary<String, String>] = []
rows = [["id ": "2", "name": "Bob", "age": "19"]] // assigned some value
var value = rows[0]["id"]
println(rows[0]) // ["id": "2", "name": "Bob", "age": "19"]
println(value) // I get nil value
To check your keys, print them out like this to see if there is any space in them:
for key in rows[0].keys {
println("XXX\(key)XXX")
}
prints:
XXXid XXX
XXXageXXX
XXXnameXXX
showing that key id is followed by a space, but age and name are not.