Realm在React-Native中使用

Realm增删改查

/**
 * Realm的使用
 */
var RealmBase = {};

import Realm from 'realm';

const HomeSchame = {
    name:'HomeData',
    properties:{
        id:'int',
        title:'string',
        image:'string',
        mall:'string',
        pubtime:'string',
        fromsite:'string',
    }
};

const HTSchame = {
    name:'HTData',
    properties:{
        id:'int',
        title:'string',
        image:'string',
        mall:'string',
        pubtime:'string',
        fromsite:'string',
    }
};

// 初始化realm
let realm = new Realm({schema:[HomeSchame, HTSchame]});

// 增加
RealmBase.create = function (schame, data) {
    realm.write(() => {
        for (let i = 0; i<data.length; i++) {
            let temp = data[i];
            realm.create(schame, {id:temp.id, title:temp.title, image:temp.image, mall:temp.mall, pubtime:temp.pubtime, fromsite:temp.fromsite});
        }
    })
}

// 查询全部数据
RealmBase.loadAll = function (schame) {
    return realm.objects(schame);
}

// 条件查询
RealmBase.filtered = function (schame, filtered) {
    // 获取对象
    let objects = realm.objects(schame);
    // 筛选
    let object = objects.filtered(filtered);

    if (object) {   // 有对象
        return object;
    }else {
        return '未找到数据';
    }
}

// 删除所有数据
RealmBase.removeAllData = function (schame) {
    realm.write(() => {
        // 获取对象
        let objects = realm.objects(schame);
        // 删除表
        realm.delete(objects);
    })
}

global.RealmBase = RealmBase;

使用

 // 清楚本地存储的数据
  RealmBase.removeAllData('HomeData');
  // 存储数据到本地
  RealmBase.create('HomeData', responseData.data);