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feat(docs): improve form validation examples (#4584)

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@jackmu95
jackmu95 committed Jan 9, 2020
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  1. +35 −157 docs/markdown/reference/validation/README.md
192 docs/markdown/reference/validation/README.md
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@@ -18,87 +18,17 @@ This is a verbose example designed to show how BootstrapVue and Vuelidate intera
applications, you'd likely want to abstract some of the functionality, such as creating a standard
error message component.

```html
<template>
<div>
<b-form @submit.stop.prevent="onSubmit">
<b-form-group id="example-input-group-1" label="Name" label-for="example-input-1">
<b-form-input
id="example-input-1"
name="example-input-1"
v-model="$v.form.name.$model"
:state="$v.form.name.$dirty ? !$v.form.name.$error : null"
aria-describedby="input-1-live-feedback"
></b-form-input>

<b-form-invalid-feedback id="input-1-live-feedback">
This is a required field and must be at least 3 characters.
</b-form-invalid-feedback>
</b-form-group>

<b-form-group id="example-input-group-2" label="Food" label-for="example-input-2">
<b-form-select
id="example-input-2"
name="example-input-2"
v-model="$v.form.food.$model"
:options="foods"
:state="$v.form.food.$dirty ? !$v.form.food.$error : null"
aria-describedby="input-2-live-feedback"
></b-form-select>

<b-form-invalid-feedback id="input-2-live-feedback">
This is a required field.
</b-form-invalid-feedback>
</b-form-group>

<b-button type="submit" variant="primary" :disabled="$v.form.$invalid">Submit</b-button>
</b-form>
</div>
</template>

<script>
import { validationMixin } from 'vuelidate'
import { required, minLength } from 'vuelidate/lib/validators'
export default {
mixins: [validationMixin],
data() {
return {
foods: ['apple', 'orange'],
form: {
name: null,
food: null
}
}
},
validations: {
form: {
food: {
required
},
name: {
required,
minLength: minLength(3)
}
}
},
methods: {
onSubmit() {
this.$v.form.$touch()
if (this.$v.form.$anyError) {
return
}
// Form submit logic
}
}
}
</script>
```
<iframe
src="https://codesandbox.io/embed/inspiring-haslett-lzq6p?fontsize=14&hidenavigation=1&module=%2FApp.vue&theme=dark"
style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;"
title="BootstrapVue Vuelidate example"
allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"
></iframe>
## VeeValidate
## VeeValidate v2

[VeeValidate](https://logaretm.github.io/vee-validate/) is a plugin for Vue.js that allows you to
[VeeValidate](http://vee-validate.logaretm.com/v2/) is a plugin for Vue.js that allows you to
validate input fields and display errors. It has full support for
[Vue I18n](https://kazupon.github.io/vue-i18n/) and provides fairly good out of the box error
messages.
@@ -122,81 +52,29 @@ Vue.use(VeeValidate, {
})
```

### VeeValidate example

Same example as above, just modified for VeeValidate:

```html
<template>
<div>
<b-form @submit.stop.prevent="onSubmit">
<b-form-group id="example-input-group-1" label="Name" label-for="example-input-1">
<b-form-input
id="example-input-1"
name="example-input-1"
v-model="form.name"
v-validate="{ required: true, min: 3 }"
:state="validateState('example-input-1')"
aria-describedby="input-1-live-feedback"
></b-form-input>

<b-form-invalid-feedback id="input-1-live-feedback">
This is a required field and must be at least 3 characters.
</b-form-invalid-feedback>
</b-form-group>

<b-form-group id="example-input-group-2" label="Food" label-for="example-input-2">
<b-form-select
id="example-input-2"
name="example-input-2"
v-model="form.food"
v-validate="{ required: true }"
:options="foods"
:state="validateState('example-input-2')"
aria-describedby="input-2-live-feedback"
></b-form-select>

<b-form-invalid-feedback id="input-2-live-feedback">
This is a required field.
</b-form-invalid-feedback>
</b-form-group>

<b-button type="submit" variant="primary" :disabled="veeErrors.any()">Submit</b-button>
</b-form>
</div>
</template>

<script>
export default {
data() {
return {
foods: ['apple', 'orange'],
form: {
name: null,
food: null
}
}
},
methods: {
validateState(ref) {
if (
this.veeFields[ref] &&
(this.veeFields[ref].dirty || this.veeFields[ref].validated)
) {
return !this.veeErrors.has(ref)
}
return null
},
onSubmit() {
this.$validator.validateAll().then((result) => {
if (!result) {
return
}
// Form submit logic
})
}
}
}
</script>
```
### VeeValidate v2 example

<iframe
src="https://codesandbox.io/embed/vigilant-kirch-8lpns?fontsize=14&hidenavigation=1&module=%2FApp.vue"
style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;"
title="BoostrapVue VeeValidate v2 example"
allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"
></iframe>
## VeeValidate v3

[VeeValidate](http://vee-validate.logaretm.com/) is a plugin for Vue.js that allows you to validate
input fields and display errors. It has full support for
[Vue I18n](https://kazupon.github.io/vue-i18n/) and provides fairly good out of the box error
messages.

### VeeValidate v3 example

<iframe
src="https://codesandbox.io/embed/boostrapvue-veevalidate-v3-example-xm3et?fontsize=14&hidenavigation=1&module=%2FApp.vue&theme=dark"
style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;"
title="BoostrapVue VeeValidate v3 example"
allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"
></iframe>

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