salesforce lightning零基礎學習(十六) 公用元件之 獲取欄位label資訊

 1 public with sharing class FieldLabelServiceController { 2     /* 3     * @param objApiNameList : object API name list. eg:['Account','Contact'] 4     * @param objApiName2FieldsMap: object API name 2 fields map. eg:{'Account':['Name','Type'],'Contact':['LastName','Phone']} 5     * @return object API name 2 map of field API name -> label name. eg:{'Account':{'Type'：'型別'},'Contact':{'LastName':'姓'}} 6     */ 7     @AuraEnabled 8     public static Map<String,Map<String,String>> getFieldLabelService(List<String> objApiNameList,Map<String,List<String>> objApiName2FieldsMap) { 9         // key: object API name ; value : (Map: key:field API name, value: field label)10         Map<String,Map<String,String>> object2FieldLabelMap = new Map<String,Map<String,String>>();11         //get all sobject sObjectType map12         Map<String,sObjectType> objName2ObjTypeMap = Schema.getGlobalDescribe();13         for(String objApiName : objApiNameList) {14 15             //1. get specific object sObjectType16             sObjectType objType = objName2ObjTypeMap.get(objApiName);17             //2. get all of the fields map via specific object18             Map<String,Schema.SObjectField> fieldsMap = objType.getDescribe().fields.getMap();19 20             //3. check if retrieve specific field list or all the fields mapping via object21             Set<String> retrieveFieldList = new Set<String>();22             if(objApiName2FieldsMap != null && objApiName2FieldsMap.containsKey(objApiName)) {23                 retrieveFieldList = new Set<String>(objApiName2FieldsMap.get(objApiName));24             }25 26             Map<String,String> fieldApiName2FieldLabelMap = new Map<String,String>();27             //4. get all / specific field api name -> label name mapping28             for(String fieldApiName : fieldsMap.keySet()){29                 if(retrieveFieldList.size() > 0 && !retrieveFieldList.contains(String.valueOf(fieldsMap.get(fieldApiName)))) {30                     continue;31                 }32 33                 String label = fieldsMap.get(fieldApiName).getDescribe().getLabel();34                 fieldApiName2FieldLabelMap.put(String.valueOf(fieldsMap.get(fieldApiName)), label == null ? fieldApiName : label);35             }36 37             object2FieldLabelMap.put(objApiName, fieldApiName2FieldLabelMap);38         }39         return object2FieldLabelMap;40     }41 }

1 <aura:component access="global" description="Field label service" controller="FieldLabelServiceController">2     <aura:method access="global" name="getFieldLabel" action="{!c.getFieldLabelAction}">3         <aura:attribute type="List" name="objectAPINameList" required="true" description="object list to retrieve field label" />4         <aura:attribute type="Map" name="objectFieldAPINameMap" description="specific fields need to retrieve via object api name"/>5         <aura:attribute type="Function" name="callback" required="true" />6     </aura:method>7 </aura:component>

 1 ({ 2     getFieldLabelAction : function(component, event, helper) { 3         const params = event.getParam('arguments'); 4         const action = component.get('c.getFieldLabelService'); 5         action.setParams({ 6             "objApiNameList" : params.objectAPINameList, 7             "objApiName2FieldsMap":params.objectFieldAPINameMap 8         }); 9         action.setCallback(this, function(response) {10             const state = response.getState();11             if (state === 'SUCCESS') {12                 params.callback(response.getReturnValue());13             } else if (state === 'ERROR') {14                 const errors = response.getError();15                 if (errors) {16                     console.error(JSON.stringify(errors));17                 } else {18                     console.error('Unknown error');19                 }20             }21         });22 23         $A.enqueueAction(action);24     }25 })

<aura:component implements="flexipage:availableForAllPageTypes">
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
    <aura:attribute name="accountFieldLabelMap" type="Map"/>
    <aura:attribute name="contactFieldLabelMap" type="Map"/>
    <c:FieldLabelService aura:id="service"/></aura:component>

 1 ({ 2     doInit : function(component, event, helper) { 3         const service = component.find('service'); 4         let objectAPINameList = ['Account','Contact']; 5         let objectFieldAPINameMap = {'Account':['Name','Type']}; 6         service.getFieldLabel(objectAPINameList,objectFieldAPINameMap,function(result) { 7             console.log(JSON.stringify(result)); 8             component.set('v.accountFieldLabelMap',result['Account']); 9             component.set('v.contactFieldLabelMap',result['Contact']);10             console.log(JSON.stringify(result['Account']));11             console.log(JSON.stringify(result.Account));12         });13     }14 })