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https://github.com/esss/ng-xform


https://github.com/esss/ng-xform

angular6 forms

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# ng-xform - Angular library built using ngx-library yeoman generator.

[![npm version](https://badge.fury.io/js/%40esss%2Fng-xform.svg)](https://badge.fury.io/js/%40esss%2Fng-xform)
[![Build Status](https://github.com/ESSS/ng-xform/actions/workflows/main.yml/badge.svg?branch=master)](https://github.com/ESSS/ng-xform/actions)
[![Coverage Status](https://coveralls.io/repos/github/ESSS/ng-xform/badge.svg?branch=master)](https://coveralls.io/github/ESSS/ng-xform?branch=master)
[![dependencies Status](https://david-dm.org/esss/ng-xform/status.svg)](https://david-dm.org/esss/ng-xform)
[![devDependencies Status](https://david-dm.org/esss/ng-xform/dev-status.svg)](https://david-dm.org/esss/ng-xform?type=dev)

## Demo

View all the directives in action at [Demo](https://esss.github.io/ng-xform) and [Demo source code](https://github.com/ESSS/ng-xform/blob/master/demo/src/app/home/home.component.ts)

## Dependencies
* [Angular](https://angular.io) (*requires* Angular 6, tested with 6.1.0)

## Installation
Install above dependencies via *npm*.
```shell
npm i --save @ng-select/ng-select@2.3.5 ngx-bootstrap@3.0.1 mathjs@3.20.2
```

Now install `@esss/ng-xform` via:
```shell
npm i --save @esss/ng-xform
```

You will need to import styles. Example: 'src/styles.scss'
```css
@import 'bootstrap/dist/css/bootstrap.min.css';
@import 'ngx-bootstrap/datepicker/bs-datepicker.css';
@import "@ng-select/ng-select/themes/default.theme.css";
```

Setup the MeasureComponent adding the js file on .angular-cli.json
```json
"scripts": [
"../node_modules/mathjs/dist/math.js"
]
```

---
##### SystemJS
>**Note**:If you are using `SystemJS`, you should adjust your configuration to point to the UMD bundle.
In your systemjs config file, `map` needs to tell the System loader where to look for `@esss/ng-xform`:
```js
map: {
'@esss/ng-xform': 'node_modules/@esss/ng-xform/bundles/ng-xform.umd.js',
}
```
---

Once installed you need to import the main module:
```js
import { NgXformModule } from '@esss/ng-xform';
```
The only remaining part is to list the imported module in your application module. The exact method will be slightly
different for the root (top-level) module for which you should end up with the code similar to (notice ` NgXformModule`):
```js
import { NgXformModule } from '@esss/ng-xform';

@NgModule({
declarations: [AppComponent, ...],
imports: [NgXformModule, ...],
bootstrap: [AppComponent]
})
export class AppModule {
}
```

Other modules in your application can simply import ` NgXformModule `:

```js
import { NgXformModule } from '@esss/ng-xform';

@NgModule({
declarations: [OtherComponent, ...],
imports: [NgXformModule, ...],
})
export class OtherModule {
}
```

## Usage
Template:
```html

```
Component:
```ts
export class HomeComponent implements OnInit, OnDestroy {

@ViewChild(NgXformEditSaveComponent) xformComponent: NgXformEditSaveComponent;
@ViewChild('customField') customFieldTmpl: TemplateRef;

private colors: any[] = [
{ id: 0, name: 'other' },
{ id: 1, name: 'blue' },
{ id: 2, name: 'yellow' },
{ id: 3, name: 'white' },
{ id: 4, name: 'black' },
{ id: 5, name: 'orange' },
{ id: 6, name: 'purple' }
];

public onchangefn = new Subject();

public fields: DynamicField[];
public horizontal = false;
public labelWidth = 2;
public model: any;
public outputhelper = {'A': 1, 'B': 2, 'C': 3};
public subscriptions: Subscription[] = [];

constructor(private titleService: Title, private http: HttpClient) { }

ngOnInit() {
const minDate = new Date();
const maxDate = new Date();

this.subscriptions.push(this.onchangefn.asObservable().subscribe(
(value: any) => this.xformComponent.setValue({'outputopt': this.outputhelper[value]})
));

minDate.setDate(minDate.getDate() - 3);
maxDate.setDate(maxDate.getDate() + 3);
this.titleService.setTitle('Home | @esss/ng-xform');
this.fields = [
new TextField({
key: 'name',
label: 'Name',
validators: [
Validators.minLength(3)
]
}),
new TextField({
key: 'email',
label: 'E-mail',
validators: [
Validators.required,
Validators.email
]
}),
new SelectField({
key: 'color_ro',
label: 'Color read-only',
readOnly: true,
searchable: true,
options: this.colors,
optionLabelKey: 'name',
}),
new SelectField({
key: 'color',
label: 'Color',
searchable: true,
options: this.colors,
addNewOption: true,
addNewOptionText: 'Add Color',
optionLabelKey: 'name',
}),
new TextField({
key: 'other',
label: 'Other color',
visibilityFn: (value: any) => value.color && value.color.id === 0
}),
new NestedFormGroup({
key: 'address',
fields: [
new SelectField({
key: 'country',
label: 'Country',
searchHandler: this.observableSource.bind(this),
searchByValueKeyHandler: this.observableSourceByPlaceId.bind(this),
searchOnFocus: true,
searchable: true,
optionLabelKey: 'name',
optionValueKey: 'alpha3Code',
validators: [
Validators.required
]
})
]
}),
new SelectField({
key: 'type',
label: 'Type',
options: ['a', 'b'],
validators: [
Validators.required
]
}),
new SelectField({
key: 'type_tags',
label: 'Type tags',
options: [{id: 1, description: 'A'}, {id: 2, description: 'B'}, {id: 3, description: 'C'}],
optionLabelKey: 'description',
optionValueKey: 'id',
multiple: true
}),
new MeasureField({
key: 'length',
label: 'Length',
modelUnit: 'mm',
viewUnit: of('m').pipe(delay(200)),
availableUnits: of(['m', 'cm', 'mm']).pipe(delay(200))
}),
new MeasureField({
key: 'width',
label: 'Width',
modelUnit: 'inch',
viewUnit: of('inch').pipe(delay(200)),
availableUnits: of(['inch', 'ft']).pipe(delay(200))
}),
new SelectField({
key: 'opt',
label: 'Select an option',
options: [{id: 'A', description: 'Option A'}, {id: 'B', description: 'Option B'}, {id: 'C', description: 'Option C'}],
optionLabelKey: 'description',
optionValueKey: 'id',
onChangeFn: (value: string) => {
this.onchangefn.next(value);
}
}),
new TextField({
key: 'outputopt',
label: 'Output of option',
readOnly: true,
}),
new CheckboxField({
key: 'news',
label: 'News'
}),
new RadioGroupField({
key: 'gender',
label: 'Gender',
options: of([{id: 1, label: 'male'}, {id: 2, label: 'female'}]).pipe(delay(2000)),
optionValueKey: 'id',
optionLabelKey: 'label'
}),
new MultilineField({
key: 'comment',
label: 'Comment',
rows: 4
}),
new DateField({
key: 'birth',
label: 'Date of birth',
theme: 'blue',
minDate: minDate,
maxDate: maxDate,
showWeekNumbers: true
}),
new DateRangeField({
key: 'range',
label: 'Date range',
theme: 'blue'
}),
new CustomField({
key: 'custom_amount',
label: 'Custom Field Amount',
tmpl: this.customFieldTmpl
}),
];
}

ngOnDestroy() {
this.subscriptions.forEach(sub => sub.unsubscribe());
}

public onSubmit(values: object) {
this.model = values;
}

populate() {
this.xformComponent.setValue({
name: 'Customer',
email: 'customer@mail.com',
type_tags: [2],
type: 'b',
color: { id: 3, name: 'white' },
color_ro: { id: 3, name: 'white' },
address: {
street: 'ChIJn7h-4b9JJ5URGCq6n0zj1tM'
},
gender: 1,
length: { value: 2, unit: 'm'},
width: { value: 3, unit: 'ft'},
opt: 'A',
news: true,
comment: 'Mussum Ipsum, cacilds vidis litro abertis. Mauris nec dolor in eros commodo tempor. Aenean aliquam molestie leo, vitae ' +
'iaculis nisl. Quem num gosta di mé, boa gentis num é. Tá deprimidis, eu conheço uma cachacis que pode alegrar sua vidis. Em pé ' +
'sem cair, deitado sem dormir, sentado sem cochilar e fazendo pose. Leite de capivaris, leite de mula manquis sem cabeça. Praesent ' +
'vel viverra nisi. Mauris aliquet nunc non turpis scelerisque, eget. Casamentiss faiz malandris se pirulitá. Sapien in monti ' +
'palavris qui num significa nadis i pareci latim.',
birth: new Date(),
range: [
'2018-09-06T03:00:00.000Z',
'2018-10-08T03:00:00.000Z'
],
custom_amount: 456
});
}

public observableSource(keyword: any): Observable {
const url = `https://restcountries.eu/rest/v2/name/${keyword}`;
if (keyword) {
return this.http.get(url)
.pipe(
map((res) => res as any[])
);
} else {
return of([]);
}
}

public observableSourceByPlaceId(keyword: any): Observable {
return of({
'alpha3Code': 'BRA',
'name': 'Brazil'
}).pipe(delay(300));
}
}
```
### Custom Field

It's possible to create your own field template and set it on dynamic field list through CustomField

Example:
`my-component.html`
```html


$


.00

```

`my-component.ts`
```ts

@ViewChild('customField') customFieldTmpl: TemplateRef;
public fields: DynamicField[];
...
ngOnInit() {
this.fields = [
new CustomField({
key: 'custom_amount',
label: 'Custom Field Amount',
tmpl: this.customFieldTmpl
}),
];
}
```

### Typed key validation

Now it is possible to define a type that will be used to validate the key field values

Example:
```ts

class Address {
street: string;
city: string;
}

class User {
name: string;
email: string;
address: Address;
}

export class UserComponent {

public fields: DynamicField[];

constructor() {

this.fields = [
new TextField({
key: 'name',
label: 'Name',
validators: [
Validators.minLength(3)
]
}),
new TextField({
key: 'email',
label: 'E-mail',
validators: [
Validators.required,
Validators.email
]
}),
new NestedFormGroup({
key: 'address',
fields: [
new TextField

({
key: 'street',
label: 'Street',
}),
new TextField
({
key: 'city',
label: 'City',
}),
]
})
];
}
}
```

In the example, the ```TextField``` is created specialized whit the ```User``` class
```ts
new TextField({
```
the TextField ```key``` attribute will accept only keys of the class User (i.e. 'name', 'email', 'address'), and show and error if any other value is provided.

### On change function
You can add a parameter ```onChangeFn``` on your ```DynamicField``` fields. This parameter receives a
anonymous function, just like in the following example:

```ts
new TextField({
key: 'phrase',
label: 'Write a phrase',
onChangeFn: (value: string) => {
// push new typed value to a subject
this.onchangefnSubject.next(value);
}
}),
```
This parameter can be used to execute async functions that depends on user input or push values of
a field to a ```Subject()``` just like is shown above.

### Locales
DatepickerField can use different locales.

It's possible to change a locale by calling use method of BsLocaleService, list of available locales is in dropdown below.

To use a different locale, you have to import it from ngx-bootstrap/chronos first, then define it in your @NgModule using function defineLocale

Example:

```ts
import { defineLocale, LocaleData } from 'ngx-bootstrap/chronos';
import { ptBrLocale } from 'ngx-bootstrap/locale';
defineLocale(ptBrLocale.abbr, ptBrLocale);

...

export class AppModule {

constructor(bsLocaleService: BsLocaleService) {
// aplly locale
bsLocaleService.use(ptBrLocale.abbr);
}
}
```

[Demo source code](https://github.com/ESSS/ng-xform/blob/master/demo/src/app/app.module.ts) load locales.

## Development

After cloning of this repository will be necessary run once ```npm run setup```, so will be able to run ```npm run demo``` to start the demo locally

For more information view common development activities on https://github.com/tinesoft/generator-ngx-library#development

## License

Copyright (c) 2018 ESSS. Licensed under the MIT License (MIT)