argos/dmp-frontend/src/app/form/fields/dynamic-form-field.componen...

229 lines
9.5 KiB
TypeScript

import { VisibilityRulesService } from '../../visibility-rules/visibility-rules.service';
import { VisibilityRuleSource } from '../../visibility-rules/models/VisibilityRuleSource';
import { Field } from '../../models/Field';
import { DataModel } from '../../entities/DataModel';
import { Component, Input, OnInit } from '@angular/core';
import { FormGroup, ValidatorFn, AbstractControl, Validators } from '@angular/forms';
import { ActivatedRoute } from '@angular/router';
import { FieldBase } from './field-base';
import { GroupBase } from '../../form/dynamic-form-group/group-base';
import { DropdownField } from '../../form/fields/dropdown/field-dropdown';
import { RuleStyle } from '../../entities/common/rulestyle';
@Component({
selector: 'df-field',
templateUrl: './dynamic-form-field.component.html',
styles: ['.checkBoxLabelCustom {font-weight: 700;}']
})
export class DynamicFormFieldComponent {
@Input() dataModel: DataModel;
@Input() field: Field;
@Input() form: FormGroup;
@Input() pathName:string;
private fragment: string;
constructor(private route: ActivatedRoute,private visibilityRulesService:VisibilityRulesService) { }
ngOnChanges(changeRecord) {
}
get isValid() {
return this.form.get("value").valid;
}
get isValidRequired() {
return this.form.get("value").hasError("required");
}
get isValidPattern() {
return this.form.get("value").hasError("pattern");
}
get isValidCustom() {
return this.form.get("value").hasError("forbiddenName");
}
public ngOnInit() {
this.route.fragment.subscribe(fragment => { this.fragment = fragment; }); //navigate to certain section of the page
}
ngAfterViewChecked(): void { //navigate to certain section of the page
try {
document.querySelector('#' + this.fragment).scrollIntoView();
} catch (e) { }
}
ruleVisibleMethod(field, rule, dataModel) { //visibility rule -- checks if target field is visible
dataModel.fields.forEach(fld => {
if (fld.label == rule._target && fld.visible == true)
field.visible = true;
});
if (field.visible == true)
return true;
}
FieldValueRuleMethod(field, rule, targetField) { //fieldValue rule -- checks the value of target and apply rules, at the same time when the field becomes visible /calling the AddvalidationRules we apply the validation rules for the new field
var fieldValue = this.form.get(field.key).value;//to do: change field.value
if (rule._ruleStyle == "range") {
if (parseInt(rule._from) < parseInt(field.value) && parseInt(field.value) < parseInt(rule._to)) {
console.log("visible" + field.value)
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
if (rule._ruleStyle == "boolean" && field.value !== undefined) { //boolean Decision field
let ruleValue = rule.value.__text;
if (field.value.toString() == ruleValue) { //field.value.value.toString() == ruleValue
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
if (rule._ruleStyle == "checked") { //checkbox field
if (field.value == true) {
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
if (rule._ruleStyle == "unchecked") { //checkbox field
if (field.value !== "") {
if (field.value == false) {
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
}
if (rule._ruleStyle == "existence") {
if (field.visible == "true" || field.visible == true) {
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
if (rule._ruleStyle == "regex") {
if (new RegExp(rule.__cdata).test(field.value)) {
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
if (rule._ruleStyle == "dropdownValue") { //dropdown field
let fieldValue = this.form.get(field.key).value;
let ruleValue;
let ruleValueBoolean = false;
if (rule.value.length)
rule.value.forEach(value => {
if (fieldValue.toString() == value.__text)
ruleValueBoolean = true;
return;
});
else
ruleValue = rule.value.__text;
if (fieldValue.toString() == ruleValue || ruleValueBoolean.valueOf() == true) { //field.value.value.toString() == ruleValue
targetField.visible = true;
this.AddvalidationRules(targetField);
} else {
this.hideField(targetField, rule);
}
}
}
hideField(targetField, rule) {
targetField.visible = false;
targetField.value = ' ';
if (this.form.controls[targetField.key].hasError("pattern"))
this.form.controls[targetField.key].reset(); //the regex error message didn't remove without field reset
this.form.controls[targetField.key].clearValidators(); // when a field is hidden must clear the validators and the errors
this.form.controls[targetField.key].updateValueAndValidity();
}
findTargetField (field, rule){
// var targetField = this.dataModel.getFieldByKey(rule._target);
let targetFields = new Array();
if (this.dataModel.getFieldByKey(rule._target) == undefined) {
this.dataModel.groups.forEach(gr => {
if (gr.key == rule._target) {
gr.groupFields.forEach(field=>{
targetFields.push(field);
});
if(gr.compositeFields)
gr.compositeFields.groupFields.forEach(field=>{
targetFields.push(field);
});
}
})
} else {
targetFields.push(this.dataModel.getFieldByKey(rule._target));
}
return targetFields;
}
toggleVisibility(e, field, ckb) { //ckb the checkbox only send this parameter, it's essential to change the field value
if (ckb) {
if (e) this.form.get(field.key).patchValue(e.target.checked)
field.value = this.form.get(field.key).value;
}
if (field.rules.length != undefined && field.rules.length > 1)
field.rules.forEach(rule => {
if (rule._type == "fieldValue") {
let targetFieldsArray = this.findTargetField(field,rule);
targetFieldsArray.forEach(targetField =>{
this.FieldValueRuleMethod(field, rule, targetField);
})
}
});
else if (field.rules._type == "fieldValue") {
let targetFieldsArray = this.findTargetField(field,field.rules);
targetFieldsArray.forEach(targetField =>{
this.FieldValueRuleMethod(field, field.rules, targetField);
})
}
}
AddvalidationRules(field) {
if (this.dataModel.getFieldByKey(field.key).attributes.validation != undefined) {
let arrayVal = new Array();
this.dataModel.getFieldByKey(field.key).attributes.validation.forEach(rule => {
if (rule.ruleStyle.toString() == RuleStyle[RuleStyle.existence]) {
this.dataModel.getFieldByKey(field.key).required = true;
arrayVal.push(Validators.required);
}
if (rule.ruleStyle.toString() == RuleStyle[RuleStyle.regex]) {
this.dataModel.getFieldByKey(field.key).regex = rule.regex;
arrayVal.push(Validators.pattern(rule.regex));
}
if (rule.ruleStyle.toString() == RuleStyle[RuleStyle.customValidation]) {
arrayVal.push(this.forbiddenNameValidator(/nothing/i));
}
});
this.form.controls[field.key].setValidators(arrayVal); //Multiple Validators, Usage of array because setValidator override any validators that are provided during initialistaion
this.form.controls[field.key].updateValueAndValidity(); //hide--> visible must update the validators
}
}
forbiddenNameValidator(nameRe: RegExp): ValidatorFn {
return (control: AbstractControl): { [key: string]: any } => {
const forbidden = nameRe.test(control.value);
return forbidden ? { 'forbiddenName': { value: control.value } } : null;
};
}
}