RealmTypeSafeQuery

by kishikawakatsumi

kishikawakatsumi / RealmTypeSafeQuery

A type-safe Realm query extensions using Swift 4 Smart KeyPaths

129 Stars 9 Forks Last release: almost 3 years ago (v0.7.0) Other 28 Commits 3 Releases

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RealmTypeSafeQuery

Build Status Codecov Pods Version Platforms Carthage Compatible Swift 4.0 Swift 4.1 Swift 4.2

A type-safe Realm query extensions using Swift 4's Smart KeyPaths.

Requirements

RealmTypeSafeQuery is written in Swift 4.

Installation

CocoaPods

RealmTypeSafeQuery is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'RealmTypeSafeQuery'

Carthage

For Carthage, add the following to your

Cartfile
:
github "kishikawakatsumi/RealmTypeSafeQuery"

Description

RealmTypeSafeQuery provides type safety, code completion and avoidance of typos against

NSPredicate
queries.

Before

realm.objects(Person.self).filter("name == %@", "Katsumi")
realm.objects(Person.self).filter("age > %@", 20)

After

realm.objects(Person.self).filter(\Person.name == "Katsumi")
realm.objects(Person.self).filter(\Person.age > 20)

The following code should be a compile error.

realm.objects(Person.self).filter(\Person.name > 20) // Compile error
realm.objects(Person.self).filter(\Dog.name == "John") // Compile error

Feature request for Swift Standard Library

It requires a string representation of

KeyPath
to construct
NSPredicate
from
KeyPath
. However, the API is not officially visible currently. The feature request is tracked at SR-5220.

[SR-5220] Expose API to retrieve string representation of KeyPath - Swift

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