CODEWITHSUNDEEP
javascriptvue.jsvue-component
Rehan
Rehan

Reputation: 4013

Accessing props values inside of local component vuejs

I have a Vue Instance with two local components, both the components are having props from the data of the Vue Instance. But when I try to access the props values from one of the local component the values ae undefined.

This is the code

var custom_erp_widget = new Vue({
    el : '#custom-erp-widgets',
    data : {
        showContainerHeader : false,
        currentModuleName : 'foo',
        currentModuleFormID : '5',
        currentModuleReportID : '6'
    },
    components : {
        'custom-erp-header' : {
            template : '<div class="col-12" id="custom-erp-widget-header">'+
                        '{{ currentModuleName.toUpperCase() }}'+
                       '</div>',
            props : ['currentModuleName']
        },
        'custom-erp-body' : {
            template : '<div class="col-12" id="custom-erp-widget-body">'+
                       '</div>',
            props : ['currentModuleFormID','currentModuleReportID'],
            // for emitting events so that the child components
            // like (header/body) can catch and act accordingly
            created() {
                var _this = this;
                eventHub.$on('getFormData', function(e) {
                    if(e == 'report'){
                        console.log(_this.$props);

                        _this.getReportData();
                    }
                    else if(e == 'form'){
                        console.log(_this.$props);
                        _this.getFormData();
                    }

                });

              },

            methods : {
                // function to get the form data from the server
                // for the requested form
                getFormData : function(){
                    var _this = this;
                    //here the logs are returinig undefined
                    //but it is having values in the data from the root Instance
                    console.log(_this.$props.currentModuleFormID);
                    console.log(_this.currentModuleFormID);

                    axios
                        .get('http://localhost:3000/getFormData',{
                            params: {
                                formID: _this.currentModuleFormID + 'a'
                            }
                        })
                        .then(function(response){

                            console.log(response);

                        })
                }

            }

        }
    },

})

This is the HTML usage of the component

<div class="row" id="custom-erp-widgets" v-show="showContainerHeader">

    <custom-erp-header :current-module-name='currentModuleName'></custom-erp-header>    
    <custom-erp-body></custom-erp-body>

</div>

How can I access the props values in the local component function?

Ouptput

Upvotes: 4

Views: 1465

Answers (2)

Husam Elbashir
Husam Elbashir

Reputation: 7177

It seems that the problem is your prop names because Vue expects a kebab-cased form of your prop names in DOM templates.

HTML attribute names are case-insensitive, so browsers will interpret any uppercase characters as lowercase. That means when you’re using in-DOM templates, camelCased prop names need to use their kebab-cased (hyphen-delimited) equivalents.

So for currentModuleFormID it expects current-module-form-i-d in the DOM template, not current-module-form-id as you would expect. Try changing currentModuleFormID to currentModuleFormId with a lower case d at the end and use current-module-form-id in the template and I'm guessing it should work.

var custom_erp_widget = new Vue({
    el : '#custom-erp-widgets',
    data : {
        showContainerHeader : false,
        currentModuleName : 'foo',
        currentModuleFormId : '5',
        currentModuleReportId : '6'
    },
  ....

<custom-erp-body 
  :current-module-form-id="currentModuleFormId" 
  :current-module-report-id ="currentModuleReportId">
</custom-erp-body>

Upvotes: 1

ittus
ittus

Reputation: 22403

You have to pass props to custom-erp-body component:

<custom-erp-body 
  :currentModuleFormID="currentModuleFormID" 
  :currentModuleReportID ="currentModuleReportID">
</custom-erp-body>

Upvotes: 0

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