'use strict';
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var getBusinessObject = require('bpmn-js/lib/util/ModelUtil').getBusinessObject,
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getExtensionElements = require('./ExtensionElementsHelper').getExtensionElements;
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var FormHelper = {};
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module.exports = FormHelper;
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/**
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* Return form data from business object or undefined if none exist
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*
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* @param {djs.model.Base} element
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*
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* @return {ModdleElement|undefined} formData
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*
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* 此方法废弃
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*
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*/
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FormHelper.getFormData = function(element) {
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/* var bo = getBusinessObject(element);
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var formFields = getExtensionElements(bo, 'activiti:FormProperty');
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var formData = {}
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if (typeof formData !== 'undefined') {
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return formData[0];
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}*/
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return {};
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};
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/**
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* Return all form fields existing in the business object, and
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* an empty array if none exist.
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*
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* @param {djs.model.Base} element
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*
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* @return {Array} a list of form field objects
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*/
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FormHelper.getFormFields = function(element) {
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/**直接获取 ExtensionElements的 activiti:FormProperty元素*/
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var bo = getBusinessObject(element);
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var formFields = getExtensionElements(bo, 'activiti:FormProperty');
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return formFields || [];
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};
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/**
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* Get a form field from the business object at given index
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*
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* @param {djs.model.Base} element
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* @param {number} idx
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*
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* @return {ModdleElement} the form field
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*/
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FormHelper.getFormField = function(element, idx) {
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var formFields = this.getFormFields(element);
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return formFields[idx];
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};
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/**
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* Get all constraints for a specific form field from the business object
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*
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* @param {ModdleElement} formField
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*
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* @return {Array<ModdleElement>} a list of constraint objects
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*/
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FormHelper.getConstraints = function(formField) {
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if (formField && formField.validation && formField.validation.constraints) {
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return formField.validation.constraints;
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}
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return [];
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};
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/**
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* Get all activiti:value objects for a specific form field from the business object
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*
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* @param {ModdleElement} formField
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*
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* @return {Array<ModdleElement>} a list of activiti:value objects
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*/
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FormHelper.getEnumValues = function(formField) {
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if (formField && formField.values) {
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return formField.values;
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}
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return [];
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};
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