https://github.com/degjs/formvalidation-pattern
A pattern rule for the DEGJS formValidation module.
https://github.com/degjs/formvalidation-pattern
forms
Last synced: 8 months ago
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A pattern rule for the DEGJS formValidation module.
- Host: GitHub
- URL: https://github.com/degjs/formvalidation-pattern
- Owner: DEGJS
- Created: 2016-12-14T03:52:37.000Z (over 9 years ago)
- Default Branch: main
- Last Pushed: 2023-01-05T23:35:07.000Z (over 3 years ago)
- Last Synced: 2024-04-14T22:12:27.119Z (about 2 years ago)
- Topics: forms
- Language: JavaScript
- Size: 572 KB
- Stars: 0
- Watchers: 11
- Forks: 0
- Open Issues: 11
-
Metadata Files:
- Readme: README.md
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README
# formValidation-pattern
A pattern rule module for the DEGJS [formValidation](https://github.com/DEGJS/formValidation) module.
## Install
formValidation-pattern is an ES6 module. Consequently, you'll need an ES6 transpiler ([Babel](https://babeljs.io) is a nice one) as part of your Javascript workflow.
If you're already using NPM for your project, you can install formValidation-pattern with the following command:
```
$ npm install @degjs/form-validation-pattern
```
## Usage
After importing, formValidation rule modules can be instantiated by passing an array of names into a formValidation options object:
```js
import formValidation from "@degjs/form-validation";
/* Import the Pattern rule module */
import pattern from "@degjs/form-validation-pattern";
const validationOptions = {
rules: [
pattern
]
};
/* Instantiate the formValidation module on an element */
const formElement = document.querySelector('.form');
const validationInst = formValidation(formElement, validationOptions);
```
Optionally, default rule settings can be overridden by instantiating the rule as a function and passing options as an object:
```js
const validationOptions = {
rules: [
pattern({
message: 'This message will override the default rule message.',
events: [
'focusout',
'submit'
]
})
]
};
```
formValidation-pattern builds upon the HTML5 `pattern` validation pattern. Therefore, after instantiating the rule module, a field in the validation instance will be tested by this rule simply by adding a `pattern` attribute to the field input.
This rule module contains its own default validation message. However, this message can be overridden by adding a data attribute at the field or form level (in that order of importance).
Sample Markup:
```html
Three-letter Country Code
Submit
```
## Options
#### options.message
Type: `String`
Default: `Please match the field format.`
The default message displayed when a field fails this rule's validation test.
#### options.messageAttr
Type: `String`
Default: `data-validation-pattern-message`
The data attribute formValidation will check when determining [message hierarchy](https://github.com/DEGJS/formValidation#configuring-error-messages)
#### options.events
Type: `Array`
Default: `['focusout','submit']`
An array of DOM events that will cause the rule to run validation on a field (or the entire form, when using `submit`). NOTE: `focusout` should be used in place of `blur` due to event bubbling limitations.
For more detailed usage instructions, see the [formValidation Usage](https://github.com/DEGJS/formValidation#usage) documentation.