init

fuintUniapp/common/model/Region.js

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+import * as Api from '@/api/region'
+import storage from '@/utils/storage'
+
+const REGION_TREE = 'region_tree'
+
+/**
+ * 商品分类 model类
+ * RegionModel
+ */
+export default {
+
+  // 从服务端获取全部地区数据(树状)
+  getTreeDataFromApi () {
+    return new Promise((resolve, reject) => {
+      Api.tree().then(result => resolve(result.data.data))
+    })
+  },
+
+  // 获取所有地区(树状)
+  getTreeData () {
+    return new Promise((resolve, reject) => {
+      // 判断缓存中是否存在
+      const data = storage.get(REGION_TREE)
+      // 从服务端获取全部地区数据
+      if (data) {
+        resolve(data)
+      } else {
+        this.getTreeDataFromApi().then(list => {
+          // 缓存24小时
+          storage.set(REGION_TREE, list, 1 * 24 * 60 * 60 * 1000)
+          resolve(list)
+        })
+      }
+    })
+  },
+
+  // 获取所有地区的总数
+  getCitysCount () {
+    return new Promise((resolve, reject) => {
+      // 获取所有地区(树状)
+      this.getTreeData().then(data => {
+        const cityIds = []
+        // 遍历省份
+        for (const pidx in data) {
+          const province = data[pidx]
+          // 遍历城市
+          for (const cidx in province.city) {
+            const cityItem = province.city[cidx]
+            cityIds.push(cityItem.id)
+          }
+        }
+        resolve(cityIds.length)
+      })
+    })
+  }
+
+}

fuintUniapp/common/model/Setting.js

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+import * as SettingApi from '@/api/setting'
+import storage from '@/utils/storage'
+
+const CACHE_KEY = 'Setting'
+
+// 写入缓存, 到期时间30分钟
+const setStorage = (data) => {
+  const expireTime = 30 * 60;
+  storage.set(CACHE_KEY, data, expireTime);
+}
+
+// 获取缓存中的数据
+const getStorage = () => {
+  return storage.get(CACHE_KEY);
+}
+
+// 获取系统设置
+const getApiData = () => {
+  return new Promise((resolve, reject) => {
+    SettingApi.data()
+      .then(result => {
+        resolve(result.data.setting);
+      })
+  })
+}
+
+/**
+ * 获取商城设置
+ * 有缓存的情况下返回缓存, 没有缓存从后端api获取
+ * @param {bool} isCache 是否从缓存中获取
+ */
+const data = (isCache = true) => {
+  return new Promise((resolve, reject) => {
+    const cacheData = getStorage()
+    if (isCache && cacheData) {
+      resolve(cacheData)
+    } else {
+      getApiData().then(data => {
+        setStorage(data)
+        resolve(data)
+      })
+    }
+  })
+}
+
+// 获取指定的系统设置
+const item = (key, isCache = true) => {
+  return new Promise((resolve, reject) => {
+    data(isCache).then(setting => {
+      resolve(setting[key])
+    })
+  })
+}
+
+export default {
+  data,
+  item
+}