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@isTest | |
public class DataTypeTestAnswers { | |
public static TestMethod void DataTypes(){ | |
string text1 = 'this text'; | |
string text2 = 'that text'; | |
string text3 = text1 + text2; | |
System.debug(text3); | |
text3 = text3 + 'more text'; |
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public class ContactAfterInsert { | |
public static void setContactDeptIT(List<Contact> cons){ | |
List<Contact> consToUpdate = new List<Contact>(); | |
for(Contact conInTrigger : cons){ | |
Contact c = new Contact(Id = conInTrigger.Id, Department = 'IT'); | |
consToUpdate.add(c); | |
} | |
update consToUpdate; |
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@isTest | |
public class CollectionsAnswers { | |
static testMethod void Lists(){ | |
//LISTS ARE AN ORDERED COLLECTION OF DATA | |
//How to instantiate an List with some pre-defined values | |
String someword = 'thread'; | |
List<String> threeStrings = new List<String>{'rope', 'twine', someword}; | |
//Lists have methods that allow us to evaluate or manipulate them |
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trigger LeadTrigger on Lead (After Update) { | |
Map<ID, Lead> leadsToUpdate = new Map<ID, Lead>();//Create a Map to hold eventual updates | |
//This is a very common pattern for iterating over the list of records | |
//We use the size() method for Lists to handle each Lead in Trigger.new | |
for(Integer i = 0 ; i < trigger.new.size() ; i++){ | |
Lead old = trigger.old[i]; | |
Lead nw = trigger.new[i];//We cannot use "new" as our variable name, it's a reserved word. | |
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@isTest | |
public class Collections { | |
static testMethod void Lists(){ | |
//LISTS ARE AN ORDERED COLLECTION OF DATA | |
//How to instantiate a List with some pre-defined values | |
String someword = 'thread'; | |
List<String> threeStrings = new List<String>{'rope', 'twine', someword}; | |
//Lists have methods that allow us to evaluate or manipulate them |
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@isTest (seeAllData = true) | |
public class SOQLqueries { | |
static testMethod void relationshipQueries(){ | |
//Child-to-Parent queries are easy. Simply use the API Name of the lookup field to the parent object | |
//and use dot notation to specify the field on that object you want | |
List<Contact> conAccts = [SELECT FirstName, LastName, Account.Name FROM Contact]; | |
//FIX ME! Use a query with a WHERE filter to only return Contacts from the Account named 'sForce' | |
//List<Contact> sForceconAccts = ??? |
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trigger ContactAfterTrigger on Contact (after insert) { | |
List<Contact> consToUpdate = new List<Contact>(); | |
for(Contact conInTrigger : trigger.new){ | |
Contact c = new Contact();//Create a new instance of an as-yet-unidentified Contact | |
c.Id = conInTrigger.Id;//Set that Contact's ID to an existing ID from the Contacts in Trigger.new | |
c.Department = 'IT';//Change a field value on that Contact | |
consToUpdate.add(c);//Add it to our List so we can update it later when all Contacts in Trigger.new have been prepared | |
} | |
update consToUpdate;//Perform the DML update call outside of our for-loop to avoid Governor Limits (150 DML per transaction)! |
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trigger ContactCompareTrigger on Contact (after update) { | |
//Create an empty Map of Contacts for eventual updates | |
Map<ID, Contact> consToUpdate = new Map<Id, Contact>(); | |
//This is a very common pattern for iterating over the list of records | |
//We use the size() method for Lists to handle each Contact in Trigger.new | |
for(Integer i = 0 ; i < trigger.new.size() ; i++){ | |
Contact old = trigger.old[i]; | |
Contact nw = trigger.new[i];//We cannot use "new" as our variable name, it's a reserved word. |
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Trigger ContactBeforeTrigger on Contact (before insert) { | |
for(Contact c : Trigger.new){ | |
c.Title = 'Admin'; | |
} | |
} |
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public class ContactBeforeInsert { | |
public static void setContactTitle(List<Contact> cons){ | |
for(Contact c : cons){ | |
c.Title = 'Admin'; | |
} | |
} | |
} |
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