Files
mixtape/zero.Web/App/Components/Forms/form.vue
T

131 lines
2.7 KiB
Vue

<template>
<form class="ui-form" @submit.prevent="submitted" @change="changed">
<slot />
</form>
</template>
<script>
import Overlay from 'zeroservices/overlay.js'
import { isArray as _isArray, filter as _filter, groupBy as _groupBy } from 'underscore'
export default {
name: 'uiForm',
props: {
submit: {
type: Function,
default: () => { }
},
change: {
type: Function,
default: () => { }
}
},
data: () => ({
dirty: false,
errors: [],
errorFieldComponents: [ 'uiError' ]
}),
created()
{
},
mounted()
{
},
methods: {
// shows a confirmation dialog for dirty forms when the route tries to change
// it only works when this method is attached to the route component
beforeRouteLeave(to, from, next)
{
if (this.dirty)
{
Overlay.confirm({
title: 'You have unsaved changes',
text: 'Are you sure you want to navigate away from this page?',
confirmLabel: '@unsavedchanges.confirm',
closeLabel: '@unsavedchanges.close'
}).then(
() => next(false),
() => next()
);
}
else
{
next()
}
},
// submits the form
submitted(e)
{
this.submit(e, this);
},
// set the form to dirty when one of the fields changes
changed(e)
{
this.dirty = true;
this.change(e);
},
// tries to find matching fields for the given errors and displays them
setErrors(errors)
{
if (typeof errors === 'undefined')
{
this.errors = [];
}
else if (!_isArray(errors))
{
this.errors = [errors];
}
else
{
this.errors = errors;
}
let errorGroups = _groupBy(this.errors, 'field');
// find components which can output errors
let traverseChildren = parent =>
{
parent.$children.forEach(component =>
{
const isErrorComponent = this.errorFieldComponents.indexOf(component.$options.name) > -1;
const field = component.field;
if (isErrorComponent && field)
{
let errorGroup = errorGroups[field];
if (errorGroup)
{
component.set(errorGroup);
}
}
else
{
traverseChildren(component);
}
});
};
traverseChildren(this);
},
}
}
</script>