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December 7, 2015 21:15
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Meteor in-memory-collection example chat
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| <head> | |
| <title>example-chat</title> | |
| </head> | |
| <body> | |
| <h1>Welcome to Meteor!</h1> | |
| {{> hello}} | |
| </body> | |
| <template name="hello"> | |
| <p>You've pressed the button {{counter}} times.</p> | |
| {{#each chats}} | |
| Chat ID: {{ _id }} | |
| {{#each messages}} | |
| <p>Melding: {{msg}} Avsender: {{sender}}</p> | |
| {{/each}} | |
| <input type="text" id="anonmessage" data-chat-id="{{_id}}" /> | |
| <button>Send</button> | |
| {{/each}} | |
| </template> |
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| if (Meteor.isClient) { | |
| ChatsInMemory = new Mongo.Collection('ChatsInMemory'); | |
| Meteor.subscribe('ChatsInMemory'); | |
| Template.hello.helpers({ | |
| chats: function () { | |
| return ChatsInMemory.find({}).fetch(); | |
| } | |
| }); | |
| Template.hello.events({ | |
| 'click button': function (event, template) { | |
| var inputElement = document.getElementById('anonmessage'); | |
| console.log("inputelement:", inputElement.value); | |
| Meteor.call('sendMessage', { chatId: this._id, message: inputElement.value }); | |
| } | |
| }); | |
| } | |
| if (Meteor.isServer) { | |
| Meteor.startup(function () { | |
| // code to run on server at startup | |
| }); | |
| } |
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| Meteor.methods({ | |
| sendMessage: function (options) { | |
| ChatsInMemory.upsert( | |
| { _id: options.chatId }, | |
| { | |
| $push: { messages: { msg: options.message, sender: "Du" } } | |
| }, | |
| function (error, id) { | |
| if (error) { | |
| throw new Meteor.Error(500, "Server error, please try again."); | |
| } | |
| console.log('ID from inserting ChatsInMemory', id); | |
| console.log(ChatsInMemory.find({}).fetch()); | |
| }); | |
| } | |
| }) | |
| ChatsInMemory = new Mongo.Collection(null); | |
| ChatsInDB = new Mongo.Collection('ChatsInDB'); | |
| ChatsInMemory.insert({ messages: [{ msg: 'hei', sender: 'Du'}, { msg: 'initiell', sender: 'Red Cross'} ]}); | |
| ChatsInDB.insert({ messages: [{ msg: 'heiDB', sender: 'DuDB'}, { msg: 'initiellDB', sender: 'Red CrossDB'} ]}); | |
| Meteor.publish("ChatsInMemory", function () { | |
| var self = this; | |
| var id = Random.id(); | |
| var handle = ChatsInMemory.find({}) | |
| .observeChanges({ | |
| added: function (id, fields) { | |
| console.log("We are adding to ChatsInMemory in publish"); | |
| self.added("ChatsInMemory", id, { messages: fields.messages }); | |
| }, | |
| changed: function (id, fields) { | |
| self.changed("ChatsInMemory", id, { messages: fields.messages }); | |
| }, | |
| removed: function (id) { | |
| self.removed("ChatsInMemory", id); | |
| } | |
| }); | |
| self.ready(); | |
| self.onStop(function () { | |
| handle.stop(); | |
| }); | |
| }); |
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Publish.js should recide in server-folder in a Meteor-application.