How can I get value in datetimepicker bootstrap on vue component?

问题

My view blade, you can see this below :

...
<div class="panel-body">
    <order-view v-cloak>
        <input slot="from-date" data-date-format="DD-MM-YYYY" title="DD-MM-YYYY" type="text" class="form-control" placeholder="Date" name="from_date" id="datetimepicker" required>
        <input slot="to-date" data-date-format="DD-MM-YYYY" title="DD-MM-YYYY" type="text" class="form-control" placeholder="Date" name="to_date" id="datetimepicker" required>
    </order-view>
</div>
...

My order-view component, you can see this below :

<template>
    <div>
        <div class="col-sm-2">
            <div class="form-group">
                <slot name="from-date" required v-model="fromDate"></slot>
            </div>
        </div>
        <div class="col-sm-1">
            <div class="form-group" style="text-align: center">
                -
            </div>
        </div>
        <div class="col-sm-2">
            <div class="form-group">                           
                <slot name="to-date" required v-model="toDate"></slot>
            </div>
        </div>
        <div class="col-sm-4">
            <button v-on:click="filter()" class="btn btn-default" type="button">
                <span class="glyphicon glyphicon-search"></span>
            </button>
        </div>
    </div>
</template>

<script>
    export default {
        data() {
            return{
                fromDate: '',
                toDate: ''
            }
        },
        methods: {
            filter: function() {
                console.log(this.fromDate)
                console.log(this.toDate)
            }
        }
    }
</script>

I using v-model like above code

But, when I click the button, the result of

console.log(this.fromDate)
console.log(this.toDate)

is empty

It display empty

Why it does not work?

How can I solve it?

回答1:

You cannot bind a slot using v-model and expect that Vue will attach that automatically to your slot input, but I can't see any reason why you need to use a slot here anyway. It looks like you just want an input that you can attach custom attributes to and you can do that by passing the attributes as a prop and use v-bind to bind them:

<template>
  <div>
    <input v-bind="attrs" v-model="fromDate" />
    <button @click="filter">filter</button>
 </div>
</template>


export default{
  props: ['attrs'],
  methods: {
    filter() {
      console.log(this.fromDate)
    }
  },
  data() {
    return {
      fromDate: ""
    }
  }
}

new Vue({
  el: "#app",
  data: {
    fromDateAttrs: {
      'data-date-format': "DD-MM-YYYY",
      title: "DD-MM-YYYY",
      type: "text",
      class: "form-control",
      placeholder: "Date",
      name: "from_date",
      id: "datetimepicker",
    }
  }
});

Now you can just pass your attrs as a prop in the parent:

<my-comp :attrs="fromDateAttrs"></my-comp>

Here's the JSFiddle: https://jsfiddle.net/rvederzc/

EDIT

In reference as to how to create a date picker component, here's how I would implement a jQuery datepicker using Vue.js:

<template id="date-picker">
  <div>
    <input v-bind="attrs" v-model="date" @input="$emit('input', $event.target.value)" v-date-picker/>
  </div>
</template>

<script type="text/javascript">
export default {
  props: ['attrs'],
  directives: {
    datePicker: {
      bind(el, binding, vnode) {
        $(el).datepicker({
          onSelect: function(val) {
            // directive talk for 'this.$emit'
            vnode.context.$emit('input', val);
          }
        });
      }
    }
  }
}
</script>

You can then bind that with v-model in the parent:

<date-picker v-model="myDate"></date-picker>

Here's the JSFiddle: https://jsfiddle.net/g64drpg6/

回答2:

Cant expect any javascript technology to be complete before it becomes famous. Going by that, I tried all the recommendations from using moment to vue-datapicker. All recommendations heavily broke design and needed hardcode of the div id's in the vue initialisation under mounted. Cant introduce hacks into my project this way. Messes up design and implementation neatness.

I fixed it using plain old jsp. On Save, I just did this

vuedata.dateOfBirthMilliSecs = $("#dateOfBirth").val() ;

I'll figure out conversion of date format to milliseconds in my java controller.

来源：https://stackoverflow.com/questions/43228832/how-can-i-get-value-in-datetimepicker-bootstrap-on-vue-component