使用MagicalRecord导入数据 [英] Importing Data using MagicalRecord

问题描述

我使用MagicalRecord从plist导入数据。我使用的代码少导入，如本教程中所述此问题。

MR_importFromArray：正在使用 MR_saveWithBlock： code> saveWithBlockAndWait：解决了问题。 错误修复

I'm using MagicalRecord to import data from plist. I'm using code less import as explained in this tutorial Importing Data Made Easy.

I have two entities Manufacturer and Car, they have one to many and one to one relation respectively.

Plist structure

This import work fine

NSArray *manufacturers = ...

[MagicalRecord saveWithBlock:^(NSManagedObjectContext *localContext) {
        [manufacturers enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
            [Manufacturer MR_importFromObject:obj inContext:localContext];
        }];
    } completion:^(BOOL success, NSError *error) {

}];

But this is not getting imported

[MagicalRecord saveWithBlock:^(NSManagedObjectContext *localContext) {
        [Manufacturer MR_importFromArray:manufacturers inContext:localContext];
    } completion:^(BOOL success, NSError *error) {

}];

Any explanation would be highly appreciated.

EDIT : Log of manufacturers array

[
    {
        "Cars": [
            {
                "CarID": 1,
                "Name": "Civic"
            },
            {
                "CarID": 2,
                "Name": "Jazz"
            },
            {
                "CarID": 3,
                "Name": "City"
            }
        ],
        "ManufacturerID": 1,
        "Name": "Honda"
    }
]

解决方案

The issue seems to be like a bug in MagicalRecord, found an open bug filed for this issue.

MR_importFromArray: was using MR_saveWithBlock: replacing with saveWithBlockAndWait: solves the issue. Bug Fix

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