195 lines
4.9 KiB
JavaScript
195 lines
4.9 KiB
JavaScript
let sqlite = {
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//创建数据库或者有该数据库就打开
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openSqlite: function() {
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//创建数据库或者打开
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//这plus.sqlite只在手机上运行
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return new Promise((resolve, reject) => {
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console.log("打开数据库");
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plus.sqlite.openDatabase({
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name: "main", //数据库名称
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path: "_doc/sql.db", //数据库地址，uniapp推荐以下划线为开头，这到底存在哪里去了，我也不清楚，哈哈
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success(e) {
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console.log("success")
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resolve(e); //成功回调
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},
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fail(e) {
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console.log(e)
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reject(e); //失败回调
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},
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});
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});
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},
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getFriendMaxSeq: function(fromId, appId) {
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var sql = "";
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sql =
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"select ifnull(max(friend_sequence),0) as maxSeq from im_friendship " +
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" where app_id = " +
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appId +
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" and from_id = '" +
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fromId + "'";
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return new Promise((resolve, reject) => {
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plus.sqlite.selectSql({
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name: "main",
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sql: sql,
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success(e) {
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console.log(e)
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resolve(e);
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},
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fail(e) {
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console.log(e)
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reject(e);
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},
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});
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});
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},
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addFriend: function(fromId, toId, remark, status, black, friendSeq, blackSeq, addSource, ex, appId) {
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var sql =
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" insert into im_friendship(from_id,to_id,remark,status,black,friend_sequence,black_sequence,add_source,extra,app_id) " +
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' values ("' +
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fromId +
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'","' +
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toId +
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'","' +
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remark +
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'","' +
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status +
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'","' +
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black +
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'","' +
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friendSeq +
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'","' +
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blackSeq +
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'","' +
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addSource +
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'","' +
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123 +
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'","' +
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appId +
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'")';
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console.log(sql)
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plus.sqlite.executeSql({
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name: "main",
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sql: sql,
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success(e) {
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console.log("插入成功")
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resolve(e);
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},
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fail(e) {
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console.log(e)
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reject(e);
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},
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});
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},
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bathAddFriend: function(data) {
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// console.log(data)
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var sql =
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" insert into im_friendship(from_id,to_id,remark,status,black,friend_sequence,black_sequence,add_source,extra,app_id) values ";
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for (var i = 0; i < data.length; i++) {
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var f = data[i];
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sql += ' ("' +
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f.fromId +
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'","' +
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f.toId +
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'","' +
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f.remark +
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'","' +
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f.status +
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'","' +
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f.black +
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'","' +
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f.friendSequence +
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'","' +
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f.blackSequence +
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'","' +
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f.addSource +
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'","' +
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123 +
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'","' +
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f.appId +
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'"),';
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}
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sql = sql.substring(0, sql.length - 1); //末尾是&
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// console.log(sql)
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plus.sqlite.executeSql({
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name: "main",
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sql: sql,
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success(e) {
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console.log("插入成功")
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resolve(e);
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},
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fail(e) {
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console.log(e)
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reject(e);
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},
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});
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},
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clearAllFriend: function() {
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var sql = "delete from im_friendship"
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plus.sqlite.executeSql({
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name: "main",
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sql: sql,
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success(e) {
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console.log("清除成功")
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resolve(e);
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},
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fail(e) {
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console.log(e)
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reject(e);
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},
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});
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},
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// ---------------------------------------------------监听数据库是否开启-----------------------------------------------------------------
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//监听数据库是否开启
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isOpen: function(name, path) {
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var ss = name || "main";
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var qq = path || "_doc/sql.db";
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//数据库打开了就返回true,否则返回false
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var open = plus.sqlite.isOpenDatabase({
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name: ss,
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path: qq,
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});
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return open;
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},
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// ---------------------------------------------------创建表----------------------------------------------------------------
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//在该数据库里创建表格， 这一步也必须要！
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//下面注释里说的都是说sql:'create table if not exists....这里
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//userInfo是表格名，你也可以写其他的名，不能用数字作为表格名的开头！！！
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//括号里是表格的结构，列，这里我写了四列，list,id,gender,avatar这四列
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//list后面大写的英文是自动增加的意思，因为表格里的每一行必须有唯一标识
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//这sql语句会数据库的应该都看的懂，我是前端菜鸡，所以详细说明以便跟我一样不懂sql的前端看
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//"id" TEXT 意思是这一列放的值为字符串之类的，如果是想存数字之类的就改为INTEGER
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//数据库不能存对象，数组
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//创建 9、定位表（d_location）
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createTable: function() {
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return new Promise((resolve, reject) => {
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//创建表格在executeSql方法里写
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plus.sqlite.executeSql({
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name: "main",
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//表格创建或者打开，后面为表格结构
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sql: "create table if not exists im_friendship(\"from_id\" text(50) NOT NULL,\"to_id\" text(50),\"app_id\" INTEGER(10) NOT NULL,\"remark\" TEXT(50),\"status\" int(5),\"black\" int(5),\"friend_sequence\" bigint(20),\"black_sequence\" bigint(20),\"add_source\" TEXT(20),\"extra\" TEXT(2000),PRIMARY KEY (\"app_id\", \"from_id\", \"to_id\"))",
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success(e) {
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console.log("创建成功")
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resolve(e);
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},
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fail(e) {
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console.log(e)
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console.log("创建失败")
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reject(e);
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},
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});
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});
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}
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};
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//把这些方法导出去
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export default sqlite;
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