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OWL 字段
OWL Field

Here, we are going to create a new widget and add it in a form view. Now we are creating a date picker widget in which we can add multiple dates. Now we can go through the steps to create a widget.

Here we are adding a char field in the res.partner model.

from odoo import fields, models
class ResPartner(models.Model):
   _inherit = 'res.partner'
   test_field = fields.Char()

Then add the field in the form view.

<field name="test_field" widget="multiple_datepicker"/>

Then we define the Qweb template for the field widget

<templates>
    <t t-name="FieldDateMultipleDate" owl="1">
        <input type="text" class="input_datepicker" t-ref="inputdate"
               t-on-click="_onSelectDateField"/>
    </t>
 </templates>

Then we are going to add the style for the widget.

.datepicker-dropdown {
   top: 0;
   left: 0;
   padding: 4px
}
.datepicker table tr td,
.datepicker table tr th {
   text-align: center;
   width: 30px;
   height: 30px;
   border: none
}
.datepicker table tr td.day:hover,
.datepicker table tr td.focused {
   background: #eee;
   cursor: pointer;
   border-radius: 18px;
}
.datepicker table tr td.active.active,
.datepicker table tr td.active.highlighted.active,
.datepicker table tr td.active.highlighted:active,
.datepicker table tr td.active:active {
   color: #fff;
   background-color: #7C7BAD;
   border-radius:18px;
   border-color: #7C7BAD;
   background-radius:11px;
}
.datepicker table tr td span {
   display: block;
   width: 23%;
   height: 54px;
   line-height: 54px;
   float: left;
   margin: 1%;
   cursor: pointer;
}
.datepicker table tr td span.active,
.datepicker table tr td span.active.disabled,
.datepicker table tr td span.active.disabled:hover,
.datepicker table tr td span.active:hover {
   color: #fff;
   background-color: #7C7BAD;
   border-color: #2e6da4;
   text-shadow: 0 -1px 0 rgba(0, 0, 0, .25)
}
.datepicker .datepicker-switch {
   width: 145px;
   background:#7C7BAD;
   color:white;
}
.datepicker .datepicker-switch,
.datepicker .next,
.datepicker .prev,
.datepicker tfoot tr th {
   cursor: pointer;
   background:#7C7BAD;
   color:white;
}

Then define the widget component

/** @odoo-module **/
import { registry } from "@web/core/registry";
import { useInputField } from "@web/views/fields/input_field_hook";
import time from 'web.time';
var translation = require('web.translation');
var _t = translation._t;
const { Component,useRef} = owl;
export class DomainSelectorTextField extends Component {
   static template = 'FieldDateMultipleDate'
   setup(){
       super.setup();
       this.input = useRef('inputdate')
       useInputField({ getValue: () => this.props.value || "", refName: "inputdate" });
   }
   _onSelectDateField(ev){
       var dateFormat = time.getLangDateFormat();
      if (dateFormat.includes('MMMM')){
         var dates = dateFormat.toLowerCase()
         var result = dates.replace(/mmmm/g, 'MM');
         dateFormat = result
     }
     else if (dateFormat.includes('MMM')) {
         var dates = dateFormat.toLowerCase()
         var result = dates.replace(/mmm/g, 'M');
         dateFormat = result
     }
     else if(dateFormat.includes('ddd')){
         var dates =new dateFormat.toLowerCase()
         var result = new dates.replace(/ddd/g, 'DD');
         dateFormat = result
     }
    else{
       dateFormat = dateFormat.toLowerCase()
    }
       if (this.input.el){
          this.props.update(this.input.el.value.replace(DomainSelectorTextField, ''));
           console.log('this',dateFormat)
           $(this.input.el).datepicker({
               multidate: true,
               format: dateFormat,
           }).trigger('focus');
       }
   }
}
registry.category("fields").add("multiple_datepicker", DomainSelectorTextField);

Then define these in the manifest file.

'assets': {
   'web.assets_backend': [
       '/owl_test/static/src/scss/style.scss',
       '/owl_test/static/src/js/owl_test.js',
       '/owl_test/static/src/js/lib/bootstrap-datepicker.min.js',
       '/owl_test/static/src/xml/owl_test.xml',
   ],
},

Next we can select the multiple dates in the field.

Thus we can add multiple dates.