我一直在寻找信息,了解如何通过模型 - 控制器 - 视图将Redis连接到Sails.js,我想我已经搞定了。
我的问题是,我认为我不理解Redis的哲学,它的键等等。
我猜我的Redis没有任何键,我的意思是它不像“name:Victor,surname:Garcia”,而是“Victor:García”,没有键,所以我不知道如何在Redis的模型中设置属性。
所以我尝试了不设置属性或仅为整个键设置一个属性(例如“Victor:Garcia:33:Seville:Spain”),但没有结果。
我的模型看起来像这样:
module.exports = {
schema: false,
connection: 'redis',
autoPK: false,
autoCreatedAt: false,
autoUpdatedAt: false,
attributes: {
ta : 'string',
// Override toJSON instance method
toJSON: function() {
var obj = this.toObject();
return obj;
}
}
};
我尝试了这个:
Redis.find()
.where({ ta: 'MB:400V:TRAF004:EP:MvMoment' })
.exec(function(err, users) {
// Do stuff here
console.log("User: " + users + " - " + err);
});
实际上,控制台中没有任何结果:
User: - null
无论我在`where`中设置什么,都尝试了像这样做:
模型
module.exports = {
schema: false,
connection: 'redis',
autoPK: false,
autoCreatedAt: false,
autoUpdatedAt: false
};
没有属性,而我在控制器中尝试过。
Redis.find()
.where({ ta: 'MB:400V:TRAF004:EP:MvMoment' })
.exec(function(err, users) {
// Do stuff here
console.log("User: " + users + " - " + err);
});
我在谷歌上找到了这个链接:
http://sailsjs.org/#!/documentation/reference/waterline/models/stream.html
我尝试在我的应用程序中执行示例。
模型(Redis.js):
module.exports = {
schema: false,
connection: 'redis',
autoPK: false,
autoCreatedAt: false,
autoUpdatedAt: false
};
控制器:
estStream: function(req,res){
if (req.param('startStream') && req.isSocket){
var getSocket = req.socket;
// Start the stream. Pipe it to sockets.
Redis.stream().pipe(getSocket.emit);
} else {
res.view();
}
视图:
<script type="text/javascript">
window.onload = function startListening(){
socket.on('gotUser',function(data){
console.log(data+' has joined the party');
});
};
</script>
<div class="addButton" onClick="socket.get('/monweb/testStream/',{startStream:true})">Stream all the Users !</div>
但是当我点击按钮时,控制台输出的结果如下:
error: Sending 500 ("Server Error") response:
TypeError: Object function (ev) {
if (ev == 'newListener') {
return this.$emit.apply(this, arguments);
}
var args = util.toArray(arguments).slice(1)
, lastArg = args[args.length - 1]
, packet = {
type: 'event'
, name: ev
};
if ('function' == typeof lastArg) {
packet.id = ++this.ackPackets;
packet.ack = lastArg.length ? 'data' : true;
this.acks[packet.id] = lastArg;
args = args.slice(0, args.length - 1);
}
packet.args = args;
return this.packet(packet);
} has no method 'on'
at Stream.pipe (stream.js:65:8)
at module.exports.testStream (/home/victor/gestamp-PRUEBAS/api/controllers/MonWebController.js:1364:24)
at routeTargetFnWrapper (/home/victor/gestamp-PRUEBAS/node_modules/sails/lib/router/bind.js:178:5)
at callbacks (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:164:37)
at param (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:138:11)
at param (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:135:11)
at pass (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:145:5)
at nextRoute (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:100:7)
at callbacks (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:167:11)
at /home/victor/gestamp-PRUEBAS/node_modules/sails/lib/router/bind.js:186:7
at alwaysAllow (/home/victor/gestamp-PRUEBAS/node_modules/sails/lib/hooks/policies/index.js:209:11)
at routeTargetFnWrapper (/home/victor/gestamp-PRUEBAS/node_modules/sails/lib/router/bind.js:178:5)
at callbacks (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:164:37)
at param (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:138:11)
at param (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:135:11)
at pass (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/express/lib/router/index.js:145:5) [TypeError: Object function (ev) {
if (ev == 'newListener') {
return this.$emit.apply(this, arguments);
}
var args = util.toArray(arguments).slice(1)
, lastArg = args[args.length - 1]
, packet = {
type: 'event'
, name: ev
};
if ('function' == typeof lastArg) {
packet.id = ++this.ackPackets;
packet.ack = lastArg.length ? 'data' : true;
this.acks[packet.id] = lastArg;
args = args.slice(0, args.length - 1);
}
packet.args = args;
return this.packet(packet);
} has no method 'on']
events.js:74
throw TypeError('Uncaught, unspecified "error" event.');
^
TypeError: Uncaught, unspecified "error" event.
at TypeError (<anonymous>)
at emit (events.js:74:15)
at ModelStream.end (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/waterline/lib/waterline/utils/stream.js:61:10)
at module.exports.stream (/home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/waterline/lib/waterline/adapter/stream.js:25:66)
at /home/victor/gestamp-PRUEBAS/node_modules/sails/node_modules/waterline/lib/waterline/query/stream.js:42:20
at process._tickDomainCallback (node.js:492:13)
抱歉,我知道我对这个还很新,我确定我在做一些事情(或者很多事情)不对,请你帮帮我好吗?我想要从Redis中流式传输数据到视图。我希望能够在视图中看到Redis中的每一个变化。
谢谢大家。
Redis.find().exec(function(err, users) { console.log("User: " + users + " - " + err); });
那么如果你这样请求数据会怎样呢?