realm

Reorder UicollectioView items using RealmSwift on drag and drop

徘徊边缘 提交于 2019-12-04 21:15:47
I'm Trying reorder UICollectionViewcell Images on drag and drop using RealmSwift As database, My UI is not updating on a drag and drop and strange behaviour, some Images are duplicating , my code is Like this RealmModel As class StoryAlbumDM: Object { dynamic var id = 0 dynamic var type = "" dynamic var isImage: Int = 0 dynamic var textData = "" dynamic var imageData: NSData? = nil dynamic var rowId: Int = 0 dynamic var position: Int = 0 dynamic var storyId: Int = 0 dynamic var isCoverImage: Int = 0 dynamic var imagePath = "" let allStories = List<StoryAlbumDM>() } On drag and drop I'm doing

How do I work with realm notification if result is updated after notification is initialized?

谁都会走 提交于 2019-12-04 20:59:39
I use a UITableView with Realm results as it's data source. The results are registered with a realm notification and is updated very well when changes occur. However, the same table view has a search bar that filters the result based on the users search query. This also works fine, but if the notification listener recognizes an update, the section and row count does not match. What is the correct way to do this? Is it possible to update the NotificationToken? This is the code that initializes the notification token: let realm = try! Realm() results = realm.objects(Person.self).filter("active =

How to add a nested List of objects in Realm “Error: JS value must be of type: object”

北战南征 提交于 2019-12-04 20:13:48
I'm trying to create Realm database that has a json array of objects with a nested array of objects. When I try to add using the code below I always get the error: JS value must be of type: object. Schemas: import Realm from 'realm'; class Exercise extends Realm.Object { } Exercise.schema = { name: 'Exercise', primaryKey: 'id', properties: { id: 'int', name: 'string', category: 'string', bodyPart: 'string', levels: {type: 'list', objectType: 'Level'} } }; class Level extends Realm.Object { } Level.schema = { name: 'Level', properties: { level: 'int', equipments: 'string' } }; export default

Import Data to Realm Database

给你一囗甜甜゛ 提交于 2019-12-04 19:35:08
I want to use a centralized database and am looking at various options to do so. From my understanding, I have three main options: SQLite, Realm, and CoreData. Are these options fine for a large centralized database for all users. Additionally, I am trying to import data from JSON and CSV into a Realm database. Does Realm have this functionality? As for now Realm does not seem to have the import functionality that you need. Check this thread for more information. Realm does have a great documentation that you can read at Realm and for SQLite there is this framework (there are for sure more out

How to use realm.addNotificationBlock?

半腔热情 提交于 2019-12-04 19:31:42
I am playing around with swift and realm in an IOS app. I try to reload tableView by using realm.addNotificationBlock. But I don't know how to implement this. Can someone help me with exact code example? Thanks You can check the class reference to implement the notification handler that catch the changes in the RLMRealm: http://realm.io/docs/cocoa/0.80.0/api/Classes/RLMRealm.html In this issue you have a test case (non main thread) using the addNotificationBlock. I hope this may help you. UPDATE Check also the examples: RealmTableViewExample - (void)viewDidLoad { [super viewDidLoad]; [self

Shiro学习(一)之理论知识篇

試著忘記壹切 提交于 2019-12-04 19:09:22
一:Shiro简介 Apache Shiro 是 Java 的一个安全框架。功能强大,使用简单的Java安全框架,它为开发人员提供一个直观而全面的认证,授权,加密及会话管理的解决方案。 Authentication : 身份认证/登录,验证用户是不是拥有相应的身份; Authorization : 授权,即权限验证,验证某个已认证的用户是否拥有某个权限;即判断用户是否能做事情,常见的如:验证某个用户是否拥有某个角色。或者细粒度的验证某个用户对某个资源是否具有某个权限; Session Manager : 会话管理,即用户登录后就是一次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通JavaSE环境的,也可以是如Web环境的; Cryptography : 加密,保护数据的安全性,如密码加密存储到数据库,而不是明文存储; Web Support : Web支持,可以非常容易的集成到Web环境; Caching:缓存,比如用户登录后,其用户信息、拥有的角色/权限不必每次去查,这样可以提高效率; Concurrency : shiro支持多线程应用的并发验证,即如在一个线程中开启另一个线程,能把权限自动传播过去; Testing : 提供测试支持; Run As : 允许一个用户假装为另一个用户(如果他们允许)的身份进行访问; Remember Me : 记住我

Relational database in Realm?

自古美人都是妖i 提交于 2019-12-04 19:06:39
I want to create simple relational database in the iOS Realm DB. How can i link user id and there Wishlist product similar to the relational database in SQL. Example like bellow image : I know i can create 2 separate Realm models (tables) to store user id with time_stamp and in second table for Wishlist where there are user id with each Wishlist products or user id and a Wishlist, where the user has an array of Wishlist. Now i want to store all users with there multiple wishlists. This means that every time the user enters in APP, I have to query every wishlists in existence to see whether its

Attempting to Modify Object Outside of Write Transaction

拈花ヽ惹草 提交于 2019-12-04 19:05:25
问题 So I have no idea why I am getting this error. The error message is as follows: * Terminating app due to uncaught exception 'RLMException', reason: 'Attempting to modify object outside of a write transaction - call beginWriteTransaction on a RLMRealm instance first.' * First throw call stack: (0x2f7b0f83 0x39f61ccf 0xc46ef 0xc3c23 0xc0c9d 0xb3e73 0x3a449833 0x3a449ded 0x3a44a297 0x3a45c88d 0x3a45cb21 0x3a58bbd3 0x3a58ba98) libc++abi.dylib: terminating with uncaught exception of type

对于RBAC与shiro的一些思考

随声附和 提交于 2019-12-04 18:21:36
一、什么是RBAC模型   RBAC模型是一个解决用户权限问题的设计思维。   在最简单的RBAC模型中,将用户表设计为如下几个表   1、用户   2、角色   3、权限   以及这三张表衍生出来的两张中间表   4、用户_角色表   5、权限_角色表   上面描述的5张表就构成了最基本也是最成熟的RBAC模型,可以看得出RBAC模型中的核心是角色,所有与用户相关的权限都是通过角色表进行关联的!在今后我们可能会用到的按钮元素表,样式表等各种各样的资源表最终都如权限表一般,与角色进行关联。RBAC的哲学就是,认角色不认用户,所有的查询都是通过角色来完成的。 1.1、RBAC模型的注意点   我们之所以要用到RBAC模型,本质上是为了实现两个功能:   1、资源对用户的可见性,例如:当前用户对应的角色是否能“看到“某个菜单项或是某个按钮,这一部分其实重在前端渲染,资源的可见性并不能保证资源安全,当有心人拿到资源的请求路径时依旧可以发出相应的请求。在我看来,对资源的可见性,更多的是对用户的体验上的优化。   2、对请求的鉴权,这部分才应该是我们关注的核心点。   需要注意的是,对于资源可见性的控制上,我们只要简单的将五张表进行关联查询,然后通过foreach渲染出用户可见的按钮即可,没有什么复杂的操作。无论是前后端分离的项目还是,传统项目或是各种模板引擎,都建议这样做

How can I avoid migration in RealmSwift

那年仲夏 提交于 2019-12-04 18:07:55
问题 I am just testing some configurations with Realm and therefore I have added and deleted variables and lists from my realm classes. Since I am just testing I do not want to go through the migration process - I also don't have any data which is effected for continuity. Is there any way to get around migration being requested automatically by Realm? 回答1: There are two ways to skip migration error regardless schema changes. Use deleteRealmIfMigrationNeeded property. If it is true , recreate the