Check if object is null and return null2019 Community Moderator Electionhow to check if limit is approaching in my triggerRunning a child query on Person AccountsWhat reasons would the id in URL be null?deserializing JSON returns a null objectReturn SOQL for current record on Visualforce EmailBest Practices : Page Reference method return nullSOQL Select in test setup?Check isEmpty OR Catch ListException?Ajax REST Tooling Queries Return Null SymbolTable?“Attempt to de-reference a null object” on VF page
El Dorado Word Puzzle II: Videogame Edition
Sigmoid with a slope but no asymptotes?
Why is the principal energy of an electron lower for excited electrons in a higher energy state?
What should be the ideal length of sentences in a blog post for ease of reading?
Determining multivariate least squares with constraint
Is there a distance limit for minecart tracks?
Does Doodling or Improvising on the Piano Have Any Benefits?
Why does the Persian emissary display a string of crowned skulls?
Isometric embedding of a genus g surface
How do I prevent inappropriate ads from appearing in my game?
Would this string work as string?
How to I force windows to use a specific version of SQLCMD?
Telemetry for feature health
Why would five hundred and five be same as one?
Is there a RAID 0 Equivalent for RAM?
Confusion over Hunter with Crossbow Expert and Giant Killer
Unable to disable Microsoft Store in domain environment
Deciphering cause of death?
Air travel with refrigerated insulin
If the only attacker is removed from combat, is a creature still counted as having attacked this turn?
I'm just a whisper. Who am I?
Can I run 125kHz RF circuit on a breadboard?
Why does a 97 / 92 key piano exist by Bösendorfer?
How can I, as DM, avoid the Conga Line of Death occurring when implementing some form of flanking rule?
Check if object is null and return null
2019 Community Moderator Electionhow to check if limit is approaching in my triggerRunning a child query on Person AccountsWhat reasons would the id in URL be null?deserializing JSON returns a null objectReturn SOQL for current record on Visualforce EmailBest Practices : Page Reference method return nullSOQL Select in test setup?Check isEmpty OR Catch ListException?Ajax REST Tooling Queries Return Null SymbolTable?“Attempt to de-reference a null object” on VF page
I'm doing a query to an object. My question is if nothing returns is it technically null. I want to return null if it is.
People person = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') limit 1];
if (person == null)
return null;
apex visualforce visualforce-component
asked 3 hours ago
ebarebar
132
add a comment |
I'm doing a query to an object. My question is if nothing returns is it technically null. I want to return null if it is.
People person = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') limit 1];
if (person == null)
return null;
apex visualforce visualforce-component
asked 3 hours ago
ebarebar
132
add a comment |
I'm doing a query to an object. My question is if nothing returns is it technically null. I want to return null if it is.
People person = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') limit 1];
if (person == null)
return null;
apex visualforce visualforce-component
asked 3 hours ago
ebarebar
132
I'm doing a query to an object. My question is if nothing returns is it technically null. I want to return null if it is.
People person = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') limit 1];
if (person == null)
return null;
apex visualforce visualforce-component
apex visualforce visualforce-component
asked 3 hours ago
ebarebar
132
asked 3 hours ago
ebarebar
132
asked 3 hours ago
ebarebar
132
asked 3 hours ago
ebarebar
132
asked 3 hours ago
ebarebar
132
132
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
One way to do this is to check for the number of records returned:
People[] persons = [...];
if (persons.size() == 0) return null;
as your code as written will generate this exception if no records match:
System.QueryException: List has no rows for assignment to SObject
answered 3 hours ago
Keith CKeith C
96.1k1094212
add a comment |
The syntax in your code throws a QueryException if you try it. Instead, use one of the other common patterns. This is one that I use:
People person; // is null
for(People record: [SELECT Type FROM People WHERE Type LIKE '%Construction%' LIMIT 1])
person = record;
return person; // will return null or a single record
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
add a comment |
Change the code to:
People[] people = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') LIMIT 1];
if (people.size() == 0)
return null;
else
return people[0];
answered 3 hours ago
Phil WPhil W
471210
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "459"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsalesforce.stackexchange.com%2fquestions%2f254673%2fcheck-if-object-is-null-and-return-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
One way to do this is to check for the number of records returned:
People[] persons = [...];
if (persons.size() == 0) return null;
as your code as written will generate this exception if no records match:
System.QueryException: List has no rows for assignment to SObject
answered 3 hours ago
Keith CKeith C
96.1k1094212
add a comment |
One way to do this is to check for the number of records returned:
People[] persons = [...];
if (persons.size() == 0) return null;
as your code as written will generate this exception if no records match:
System.QueryException: List has no rows for assignment to SObject
answered 3 hours ago
Keith CKeith C
96.1k1094212
add a comment |
One way to do this is to check for the number of records returned:
People[] persons = [...];
if (persons.size() == 0) return null;
as your code as written will generate this exception if no records match:
System.QueryException: List has no rows for assignment to SObject
answered 3 hours ago
Keith CKeith C
96.1k1094212
One way to do this is to check for the number of records returned:
People[] persons = [...];
if (persons.size() == 0) return null;
as your code as written will generate this exception if no records match:
System.QueryException: List has no rows for assignment to SObject
answered 3 hours ago
Keith CKeith C
96.1k1094212
answered 3 hours ago
Keith CKeith C
96.1k1094212
answered 3 hours ago
Keith CKeith C
96.1k1094212
answered 3 hours ago
Keith CKeith C
96.1k1094212
96.1k1094212
add a comment |
add a comment |
The syntax in your code throws a QueryException if you try it. Instead, use one of the other common patterns. This is one that I use:
People person; // is null
for(People record: [SELECT Type FROM People WHERE Type LIKE '%Construction%' LIMIT 1])
person = record;
return person; // will return null or a single record
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
add a comment |
The syntax in your code throws a QueryException if you try it. Instead, use one of the other common patterns. This is one that I use:
People person; // is null
for(People record: [SELECT Type FROM People WHERE Type LIKE '%Construction%' LIMIT 1])
person = record;
return person; // will return null or a single record
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
add a comment |
The syntax in your code throws a QueryException if you try it. Instead, use one of the other common patterns. This is one that I use:
People person; // is null
for(People record: [SELECT Type FROM People WHERE Type LIKE '%Construction%' LIMIT 1])
person = record;
return person; // will return null or a single record
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
The syntax in your code throws a QueryException if you try it. Instead, use one of the other common patterns. This is one that I use:
People person; // is null
for(People record: [SELECT Type FROM People WHERE Type LIKE '%Construction%' LIMIT 1])
person = record;
return person; // will return null or a single record
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
answered 3 hours ago
sfdcfoxsfdcfox
260k12205450
260k12205450
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
add a comment |
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
The syntax in your code throws a QueryException if you try it -- only if there's no record returned.
– Jayant Das
2 hours ago
add a comment |
Change the code to:
People[] people = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') LIMIT 1];
if (people.size() == 0)
return null;
else
return people[0];
answered 3 hours ago
Phil WPhil W
471210
add a comment |
Change the code to:
People[] people = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') LIMIT 1];
if (people.size() == 0)
return null;
else
return people[0];
answered 3 hours ago
Phil WPhil W
471210
add a comment |
Change the code to:
People[] people = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') LIMIT 1];
if (people.size() == 0)
return null;
else
return people[0];
answered 3 hours ago
Phil WPhil W
471210
Change the code to:
People[] people = [SELECT Id, Type FROM People WHERE (Type LIKE '%Construction%') LIMIT 1];
if (people.size() == 0)
return null;
else
return people[0];
answered 3 hours ago
Phil WPhil W
471210
answered 3 hours ago
Phil WPhil W
471210
answered 3 hours ago
Phil WPhil W
471210
answered 3 hours ago
Phil WPhil W
471210
471210
add a comment |
add a comment |
Thanks for contributing an answer to Salesforce Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsalesforce.stackexchange.com%2fquestions%2f254673%2fcheck-if-object-is-null-and-return-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
