I am trying to save json data which is present in my app bundle. But instead of saving all data it is saving only one data
func getDignosysListFromJson() {
let coreData = CoreDataStack()
let managedObjectContext = coreData.persistentContainer.viewContext
let dignose = Dignose(context: managedObjectContext)
let jsonPath = Bundle.main.path(forResource: "dignosys", ofType: "json")
let jsonUrl = URL(fileURLWithPath: jsonPath!)
do {
let data = try Data(contentsOf: jsonUrl)
let jsonResult = try JSONSerialization.jsonObject(with: data, options: .mutableContainers)
if let newResult = jsonResult as? Array<Dictionary<String, Any>>{
for i in newResult{
let newName = i["dx description"] as! String
print(newName)
dignose.name = newName
dignose.date = "29 Dec 2020"
}
coreData.saveContext()
}
} catch {
print("")
}
}
My json structure is:-
[
{"dx type":"what is foot issue","dx description":"Hereditary motor and sensory neuropathy"},
{"dx type":"what is foot issue","dx description":"Multiple sclerosis"},
{"dx type":"use as secondary when only have issue one side","dx description":"gait instability”}
]
Move the line
let dignose = Dignose(context: managedObjectContext)
into the loop
for i in newResult {
let dignose = Dignose(context: managedObjectContext)
let newName = i["dx description"] as! String
print(newName)
dignose.name = newName
dignose.date = "29 Dec 2020"
}
to get a new instance in each iteration.
The code contains a few questionable practices. I recommend this
func getDignosysListFromJson() {
let coreData = CoreDataStack()
let managedObjectContext = coreData.persistentContainer.viewContext
let jsonUrl = Bundle.main.url(forResource: "dignosys", withExtension: "json")!
do {
let data = try Data(contentsOf: jsonUrl)
if let jsonResult = try JSONSerialization.jsonObject(with: data) as? [[String:Any]] {
for anItem in jsonResult {
let dignose = Dignose(context: managedObjectContext)
let newName = anItem["dx description"] as! String
print(newName)
dignose.name = newName
dignose.date = "29 Dec 2020"
}
coreData.saveContext()
}
} catch {
print(error)
}
}
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