Calling functions inside Vue.js template

Question

My template:

<template id="players-template" inline-template>
        <div v-for="player in players">
            <div v-bind:class="{ 'row': ($index + 1) % 3 == 0 }">
                <div class="player col-md-4">
                    <div class="panel panel-default">
                        <div class="panel-heading">
                            <h3 class="panel-title">
                                <a href="#">{{ player.username }}</a>
                                <span class="small pull-right">{{ player.createdAt }}</span>
                            </h3>
                        </div>

                        <div class="panel-body">
                            <img v-bind:src="player.avatar" alt="{{ player.username }}" class="img-circle center-block">
                        </div>
                        <div class="panel-footer">
                            <div class="btn-group btn-group-justified" role="group" aria-label="...">
                                <a href="#" class="btn btn-primary btn-success send-message" data-toggle="tooltip" data-placement="bottom" title="Wyślij wiadomość" v-bind:id="player.id" @click="createConversation(player.id)"><span class="glyphicon glyphicon-envelope"></span>&nbsp;</a>
                                <a href="#" class="btn btn-primary btn-info" data-toggle="tooltip" data-placement="bottom" title="Pokaż profil"><span class="glyphicon glyphicon-user"></span>&nbsp;</a>
                                <a href="#" class="btn btn-primary btn-primary" data-toggle="tooltip" data-placement="bottom" title="Zobacz szczegółowe informacje o poście"><span class="glyphicon glyphicon-option-horizontal"></span>&nbsp;</a>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </template>

My script:

new Vue({
    el: 'body',
    methods: {
        createConversation: function(id) { 
            console.log("createConversation()");
            console.log(id);
        }
    }
});

When the template is rendering i gets an error [Vue warn]: v-on:click="createConversation" expects a function value, got undefined. I don't know how to use methods inside a component template. If someone could help me I would appreciate is.

Answer 1

If you need the createConversation method to be on the global Vue instance, you should look at dispatching events. Your component should like this:

Vue.component('playersTemplate', {
  template: '#players-template',
  methods: {
    createConversation: function (id) {
        this.$dispatch('createConversation', id)
      }
    }
  }
});

The global Vue instance should implement the createConversation event, instead of a method:

new Vue({
    el: 'body',
    events: {
        createConversation: function(id) { 
            console.log("createConversation()");
            console.log(id);
        }
    }
});