Salesforce 为什么选择列表不使用lightning填充自定义相关选择列表字段的数据：在lightning组件中选择
我正在尝试使用lightning复制自定义相关拾取列表字段的以下功能：在lightning组件中选择自定义对象引用：- 这里唯一的区别是我使用的是自定义对象ERT\U Case\U Type\U Data\uuuu c及其2个拾取列表级别\u 1\uu c和级别\u 2\uu c，而不是本文中的标准对象联系人引用 以下是ERT案例类型数据详细信息 以下是ERT案例类型数据c数据详细信息 下面是使用此组件的TestApp，不幸的是，我在下拉选择列表中没有看到数据 请帮助我知道我在这里做错了什么 下面是Apex类dependentPicklist_updatetrl.apxcSalesforce 为什么选择列表不使用lightning填充自定义相关选择列表字段的数据：在lightning组件中选择,salesforce,apex,apex-code,salesforce-lightning,sfdc,Salesforce,Apex,Apex Code,Salesforce Lightning,Sfdc,我正在尝试使用lightning复制自定义相关拾取列表字段的以下功能：在lightning组件中选择自定义对象引用：- 这里唯一的区别是我使用的是自定义对象ERT\U Case\U Type\U Data\uuuu c及其2个拾取列表级别\u 1\uu c和级别\u 2\uu c，而不是本文中的标准对象联系人引用 以下是ERT案例类型数据详细信息 以下是ERT案例类型数据c数据详细信息 下面是使用此组件的TestApp，不幸的是，我在下拉选择列表中没有看到数据 请帮助我知道我在这里做错了什么
public class dependentPicklist_UpdateCtrl {
@AuraEnabled
public static Map<String, List<String>> getDependentMap(sObject objDetail, string contrfieldApiName,string depfieldApiName) {
String controllingField = contrfieldApiName.toLowerCase();
String dependentField = depfieldApiName.toLowerCase();
Map<String,List<String>> objResults = new Map<String,List<String>>();
Schema.sObjectType objType = objDetail.getSObjectType();
if (objType==null){
return objResults;
}
Map<String, Schema.SObjectField> objFieldMap = objType.getDescribe().fields.getMap();
if (!objFieldMap.containsKey(controllingField) || !objFieldMap.containsKey(dependentField)){
return objResults;
}
Schema.SObjectField theField = objFieldMap.get(dependentField);
Schema.SObjectField ctrlField = objFieldMap.get(controllingField);
List<Schema.PicklistEntry> contrEntries = ctrlField.getDescribe().getPicklistValues();
List<PicklistEntryWrapper> depEntries = wrapPicklistEntries(theField.getDescribe().getPicklistValues());
List<String> controllingValues = new List<String>();
for (Schema.PicklistEntry ple : contrEntries) {
String label = ple.getLabel();
objResults.put(label, new List<String>());
controllingValues.add(label);
}
for (PicklistEntryWrapper plew : depEntries) {
String label = plew.label;
String validForBits = base64ToBits(plew.validFor);
for (Integer i = 0; i < validForBits.length(); i++) {
String bit = validForBits.mid(i, 1);
if (bit == '1') {
objResults.get(controllingValues.get(i)).add(label);
}
}
}
return objResults;
}
public static String decimalToBinary(Integer val) {
String bits = '';
while (val > 0) {
Integer remainder = Math.mod(val, 2);
val = Integer.valueOf(Math.floor(val / 2));
bits = String.valueOf(remainder) + bits;
}
return bits;
}
public static String base64ToBits(String validFor) {
if (String.isEmpty(validFor)) return '';
String validForBits = '';
for (Integer i = 0; i < validFor.length(); i++) {
String thisChar = validFor.mid(i, 1);
Integer val = base64Chars.indexOf(thisChar);
String bits = decimalToBinary(val).leftPad(6, '0');
validForBits += bits;
}
return validForBits;
}
private static final String base64Chars = '' +
'ABCDEFGHIJKLMNOPQRSTUVWXYZ' +
'abcdefghijklmnopqrstuvwxyz' +
'0123456789+/';
private static List<PicklistEntryWrapper> wrapPicklistEntries(List<Schema.PicklistEntry> PLEs) {
return (List<PicklistEntryWrapper>)
JSON.deserialize(JSON.serialize(PLEs), List<PicklistEntryWrapper>.class);
}
public class PicklistEntryWrapper{
public String active {get;set;}
public String defaultValue {get;set;}
public String label {get;set;}
public String value {get;set;}
public String validFor {get;set;}
public PicklistEntryWrapper(){
}
}
}
({
fetchPicklistValues: function(component,objDetails,controllerField, dependentField) {
// call the server side function
var action = component.get("c.getDependentMap");
// pass paramerters [object definition , contrller field name ,dependent field name] -
// to server side function
action.setParams({
'objDetail' : objDetails,
'contrfieldApiName': controllerField,
'depfieldApiName': dependentField
});
//set callback
action.setCallback(this, function(response) {
if (response.getState() == "SUCCESS") {
//store the return response from server (map<string,List<string>>)
var StoreResponse = response.getReturnValue();
// once set #StoreResponse to depnedentFieldMap attribute
component.set("v.depnedentFieldMap",StoreResponse);
// create a empty array for store map keys(@@--->which is controller picklist values)
var listOfkeys = []; // for store all map keys (controller picklist values)
var ControllerField = []; // for store controller picklist value to set on lightning:select.
// play a for loop on Return map
// and fill the all map key on listOfkeys variable.
for (var singlekey in StoreResponse) {
listOfkeys.push(singlekey);
}
//set the controller field value for lightning:select
if (listOfkeys != undefined && listOfkeys.length > 0) {
ControllerField.push('--- None ---');
}
for (var i = 0; i < listOfkeys.length; i++) {
ControllerField.push(listOfkeys[i]);
}
// set the ControllerField variable values to country(controller picklist field)
component.set("v.listControllingValues", ControllerField);
}else{
alert('Something went wrong..');
}
});
$A.enqueueAction(action);
},
fetchDepValues: function(component, ListOfDependentFields) {
// create a empty array var for store dependent picklist values for controller field
var dependentFields = [];
dependentFields.push('--- None ---');
for (var i = 0; i < ListOfDependentFields.length; i++) {
dependentFields.push(ListOfDependentFields[i]);
}
// set the dependentFields variable values to store(dependent picklist field) on lightning:select
component.set("v.listDependingValues", dependentFields);
},
})
({
doInit : function(component, event, helper) {
// get the fields API name and pass it to helper function
var controllingFieldAPI = component.get("v.controllingFieldAPI");
var dependingFieldAPI = component.get("v.dependingFieldAPI");
var objDetails = component.get("v.objDetail");
// call the helper function
helper.fetchPicklistValues(component,objDetails,controllingFieldAPI, dependingFieldAPI);
},
onControllerFieldChange: function(component, event, helper) {
var controllerValueKey = event.getSource().get("v.value"); // get selected controller field value
var depnedentFieldMap = component.get("v.depnedentFieldMap");
if (controllerValueKey != '--- None ---') {
var ListOfDependentFields = depnedentFieldMap[controllerValueKey];
if(ListOfDependentFields.length > 0){
component.set("v.bDisabledDependentFld" , false);
helper.fetchDepValues(component, ListOfDependentFields);
}else{
component.set("v.bDisabledDependentFld" , true);
component.set("v.listDependingValues", ['--- None ---']);
}
} else {
component.set("v.listDependingValues", ['--- None ---']);
component.set("v.bDisabledDependentFld" , true);
}
},
})
({
fetchPicklistValues: function(component,objDetails,controllerField, dependentField) {
// call the server side function
var action = component.get("c.getDependentMap");
// pass paramerters [object definition , contrller field name ,dependent field name] -
// to server side function
action.setParams({
'objDetail' : objDetails,
'contrfieldApiName': controllerField,
'depfieldApiName': dependentField
});
//set callback
action.setCallback(this, function(response) {
if (response.getState() == "SUCCESS") {
//store the return response from server (map<string,List<string>>)
var StoreResponse = response.getReturnValue();
// once set #StoreResponse to depnedentFieldMap attribute
component.set("v.depnedentFieldMap",StoreResponse);
// create a empty array for store map keys(@@--->which is controller picklist values)
var listOfkeys = []; // for store all map keys (controller picklist values)
var ControllerField = []; // for store controller picklist value to set on lightning:select.
// play a for loop on Return map
// and fill the all map key on listOfkeys variable.
for (var singlekey in StoreResponse) {
listOfkeys.push(singlekey);
}
//set the controller field value for lightning:select
if (listOfkeys != undefined && listOfkeys.length > 0) {
ControllerField.push('--- None ---');
}
for (var i = 0; i < listOfkeys.length; i++) {
ControllerField.push(listOfkeys[i]);
}
// set the ControllerField variable values to country(controller picklist field)
component.set("v.listControllingValues", ControllerField);
}else{
alert('Something went wrong..');
}
});
$A.enqueueAction(action);
},
fetchDepValues: function(component, ListOfDependentFields) {
// create a empty array var for store dependent picklist values for controller field
var dependentFields = [];
dependentFields.push('--- None ---');
for (var i = 0; i < ListOfDependentFields.length; i++) {
dependentFields.push(ListOfDependentFields[i]);
}
// set the dependentFields variable values to store(dependent picklist field) on lightning:select
component.set("v.listDependingValues", dependentFields);
},
})