Import JSON using MagicalRecord [duplicate] - ios

Question

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MagicalRecord importFromObject: JSON with dictionary?
(2 answers)
Closed 8 years ago.
I have this JSON document:
[
{
"category": "Para los invitados",
"items": [
{
"title": "Invitaciones",
"subtitle": "Sobres, imprenta",
"items": [
"Invitaciones",
"Sobres",
"Coste envío invitaciones",
"Tarjetas de agradecimiento",
"Sobres para tarjetas de agradecimiento",
"Coste de envío tarjetas de agradecimiento"
]
},
<three elements more...>
]
},
<two elements more...>
]
How can I import this document using MagicalRecord ? Can anyone paste an example ?
Thanks!

Answer 1

If you have finished a Core Data Model and included Magical Record, you can parse the JSON File:
// Your Json File
NSURL *url = [NSURL URLWithString:#"YOUR_JSON"];
NSData* data = [NSData dataWithContentsOfURL: url];
NSError *error; // For later error handling
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
// Json values for "items" key
NSDictionary *items = [json valueForKey:#"items"];
// We are going through the items
for(int i = 0; i < [items count]; i++) {
// We save the title values into our CoreData Model
NSManagedObjectContext *localContext = [NSManagedObjectContext MR_contextForCurrentThread];
NSString *title = [[items valueForKey:#"title"] objectAtIndex:i];
YOUR_MODEL_ENTITY *entity = [YOUR_MODEL_ENTITY MR_createInContext:localContext];
entity.title = title;
// We save it
[localContext MR_saveToPersistentStoreWithCompletion:^(BOOL success, NSError *error) {
if (error) {
NSLog(#"Couldn't save new title with Magical Record: %#", error);
}
}];
}
I hope that it's right, what I wrote...
Please have a look on the documentation :)