preetam preetam - 2 months ago 22
iOS Question

parse json using JsonModel

Facing problem while getting a array of json.

I am using JsonModel library for json handelling.



My json data is:

[
{
"TSCard_id": 100,
"TSCardBackend_id": "TSu1t1",
"TSCard_date": "10/11/2013",
"TSCard_resource_id": "",
"TSCard_resource_name": "",
"TSCard_job_id": "JOB_M2156 ",
"TSCard_job_desc": "BAGARIA MILLIPORE - BOM ",
"TSCard_activity_id": "B03",
"TSCard_activity_desc": "Closing",
"TSCard_hours": "4.0",
"TSCard_chargeableflag": "0",
"TSCard_desc": "Description:",
"TSCard_syncflag": "0",
"TSCard_flag": "",
"user_id": "1"
},
{
"TSCard_id": 101,
"TSCardBackend_id": "TSu1t2",
"TSCard_date": "12/11/2013",
"TSCard_resource_id": "",
"TSCard_resource_name": "",
"TSCard_job_id": "JOB_B0002",
"TSCard_job_desc": "ABB LIMITED - BLR ",
"TSCard_activity_id": "NB01",
"TSCard_activity_desc": "Admin ",
"TSCard_hours": "5.0",
"TSCard_chargeableflag": "1",
"TSCard_desc": "Description:",
"TSCard_syncflag": "0",
"TSCard_flag": "",
"user_id": "1"
}
]


Above json has 2 objects of type
TSCard class


//TSCard.h
#import <Foundation/Foundation.h>
#import <JSONModel.h>

@protocol TSCard @end

@interface TSCard : JSONModel

@property (nonatomic, retain) NSString *TSCard_id;
@property (nonatomic, retain) NSString *TSCardBackend_id;

@property (nonatomic, retain) NSString *TSCard_date;
@property (nonatomic, retain) NSString *TSCard_resource_id;
@property (nonatomic, retain) NSString *TSCard_resource_name;
@property (nonatomic, retain) NSString *TSCard_job_id;
@property (nonatomic, retain) NSString *TSCard_job_desc;
@property (nonatomic, retain) NSString *TSCard_activity_id;
@property (nonatomic, retain) NSString *TSCard_activity_desc;
@property (nonatomic, retain) NSString *TSCard_hours;
@property (nonatomic, retain) NSString *TSCard_chargeableflag;
@property (nonatomic, retain) NSString *TSCard_desc;
@property (nonatomic, retain) NSString *TSCard_syncflag;
@property (nonatomic, retain) NSString *TSCard_flag;
@property (nonatomic, retain) NSString *user_id;

@end


And I am making a class for array of type
TSCard


//GetCardData.h

#import <JSONModel.h>
#import "TSCard.h"


@interface GetCardData : JSONModel

@property(strong,nonatomic)NSArray<TSCard>* myDataArray;

@end


then I parsing json as below:

NSError* err = nil;
GetCardData *c = [[GetCardData alloc] initWithString:jsonString error:&err];

NSLog(@"%d",c.myDataArray.count);


NSLog Error:
Error Domain=JSONModelErrorDomain Code=1 "Invalid JSON data: Attempt to initialize JSONModel object using initWithDictionary:error: but the dictionary parameter was not an 'NSDictionary'." UserInfo=0x8265490 {NSLocalizedDescription=Invalid JSON data: Attempt to initialize JSONModel object using initWithDictionary:error: but the dictionary parameter was not an 'NSDictionary'.}

I can't find where I am wrong...can anybody suggest the right way of using
JsonModel
and parsing a jsonString to array of
TSCard
objects correctly.

Answer

Try using following code for parsing your json and getting array

NSMutableArray *yourArray = [TSCard arrayOfModelsFromDictionaries:jsonString];

Than create and assign

GetCardData *objCardData = [[GetCardData alloc] init];
objCardData.myDataArray = yourArray;

or you need to change your JSONString as follow

   {
    "myDataArray": [
        {
            "TSCard_id": 100,
            "TSCardBackend_id": "TSu1t1",
            "TSCard_date": "10/11/2013",
            "TSCard_resource_id": "",
            "TSCard_resource_name": "",
            "TSCard_job_id": "JOB_M2156 ",
            "TSCard_job_desc": "BAGARIA MILLIPORE - BOM ",
            "TSCard_activity_id": "B03",
            "TSCard_activity_desc": "Closing",
            "TSCard_hours": "4.0",
            "TSCard_chargeableflag": "0",
            "TSCard_desc": "Description:",
            "TSCard_syncflag": "0",
            "TSCard_flag": "",
            "user_id": "1"
        },
        {
            "TSCard_id": 101,
            "TSCardBackend_id": "TSu1t2",
            "TSCard_date": "12/11/2013",
            "TSCard_resource_id": "",
            "TSCard_resource_name": "",
            "TSCard_job_id": "JOB_B0002",
            "TSCard_job_desc": "ABB LIMITED - BLR ",
            "TSCard_activity_id": "NB01",
            "TSCard_activity_desc": "Admin  ",
            "TSCard_hours": "5.0",
            "TSCard_chargeableflag": "1",
            "TSCard_desc": "Description:",
            "TSCard_syncflag": "0",
            "TSCard_flag": "",
            "user_id": "1"
        }
    ]
}

Than your code will definitely work. Tell me if need more help.