https://github.com/naoty/ntypopulator

A seed data populator for Core Data.
https://github.com/naoty/ntypopulator

Last synced: 2 months ago
JSON representation

A seed data populator for Core Data.

• Host: GitHub
• URL: https://github.com/naoty/ntypopulator
• Owner: naoty
• License: mit
• Created: 2014-04-19T17:34:56.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2014-04-24T02:30:10.000Z (over 10 years ago)
• Last Synced: 2024-10-12T07:44:47.768Z (2 months ago)
• Language: Objective-C
• Size: 168 KB
• Stars: 9
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# NTYPopulator

[![Version](http://cocoapod-badges.herokuapp.com/v/NTYPopulator/badge.png)](http://cocoadocs.org/docsets/NTYPopulator)

[![Platform](http://cocoapod-badges.herokuapp.com/p/NTYPopulator/badge.png)](http://cocoadocs.org/docsets/NTYPopulator)

## Installation

NTYPopulator is available through [CocoaPods](http://cocoapods.org), to install it simply add the following line to your Podfile:

```ruby

platform :ios

pod "NTYPopulator"

```

## Usage

```objective-c

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    [[NTYPopulator new] run];

    return YES;

}

```

`-init` method initializes an instance with the URL of `Model.momd` and `$(CFBundleName).sqlite`. You can also specify these URLs by `-initWithModelURL:sqliteURL:`.

`-run` method populates seed data at `seeds/*.csv` at the application resource bundle. The filename is used to look up an entity name. For example, seed data at `seeds/user.csv` is populated into `User` entity. You can also specify the URL of seed data by `-runWithSeedFileURL:`.

### Efficiency

The populator stores the modification date of each seed files on `NSUserDefaults`. It checks whether each seed files have changes, and then populates only data on changed seed files.

### Safety

By default, when the populator populates data, it will **delete all data and insert again**. So, data inserted after populating will be also deleted.

In order to keep these data, you should add a column `seed_id`. This column values identify which row should be updated, inserted or deleted.

```csv

seed_id,name,age

1,Alice,18

2,Bob,19

3,Charlie,20

```