I am performing SOQL query to get the contact detail of a customer my parent and child table relationship is as follow.
child_table
parent_table
grandparent_table
I am trying to get contact_name from Contact(Grand Parent) from Event(Child) and I trying something like this.
select Name,
Venue__r.Contact__r.Name
from Event__c;
Can anyone suggest me what I am doing wrong and what is a correct way to get it?
Your query syntax is fine. Make sure that your lookup names are correct. In your linked parent diagram, the object is named 'Vanue'.
Also, it's very important that you use the local field name for each object relationship reference (__r).
Given your example SOQL
SELECT Name, Venue__r.Contact__r.Name FROM Event__c;
we can only assume the following details:
CUSTOM OBJECT Event__c has a STANDARD FIELD 'Name' and a CUSTOM FIELD 'Venue__c'
CUSTOM FIELD Event__c.Venue__c is a lookup to a PARENT or MASTER object which may or may not be named 'Venue__c', so we'll refer to it as [V].
CUSTOM OBJECT [V] has a CUSTOM FIELD 'Contact__c'
CUSTOM FIELD [V].Contact__c is a lookup to a PARENT or MASTER object which may or may not be named 'Contact__c ', so we'll refer to it as [C].
CUSTOM OBJECT [C] has a STANDARD FIELD 'Name'
Related
I need to do 1 of two things (I believe):
1- Get a Custom Object ID so I can query it directly
2- Get a list of values of a specific field within the Object entries.
Ultimate End goal:
Add and modify rows in my custom object via external API. However to do this I need to check and make sure my new entry/row does not already exist.
What I have:
I have a custom object (called Customer_Arrays__c). It is a table that I can add new rows to (I will call entrys). Each entry has 6 or 7 fields. 1 of these fields is called (external_ID__c). This is the field I utilize to match to new incoming data to see if the entry already exists, or if it needs to add a new row to my table. This Customer_Arrays__c is a child to my opportunity I believe – it is part of every opportunity and each line item I add has a field defaulted to the opportunity.
Help I need:
1- How do I query the value of my Cutomer_Arrays__c based upon an opportunity ID?
2- How do I query a list of values in my (external_ID__c) based upon an opportunity ID?
Thanks for your help! I have read half a dozen+ posts on similar topics and am missing something. Examples of some Past try's that failed:
Select external_ID__c,FROM Custom_Arrays__c WHERE Opportunity='00...'
Select Id (Select ID, Custom_Arrays__c from Custom_Arrays__c) from Opportunity where id ='00...'
List FROM Custom_Arrays__c WHERE Opportunity='00...'
Select Id, external_ID__c, (Select external_ID__c FROM Custom_Arrays__c) WHERE Opportunity__c='00...'
Thanks again!
Only you know how did you name the lookup field (foreign key) from arrays to Opportunity. You'll need to check in setup, next to where external_ID__c is. Since it's a custom field (gets __c at the end), my guess is you went with default.
Try
SELECT Id, Name, External_Id__c
FROM Customer_Arrays__c
WHERE Opportunity__c = '006...'
Thank you eyescream, that got me almost all the way there. Turns out I also needed a __r for the parent child relationship.
Here is a snip out of my final code that works - I think it covers everything:
SELECT Field1__c, Opportunity__r.Id, Opportunity__r.Opportunity__c,
FROM Customer_Arrays__c
WHERE Opportunity__r.Id = '006...'.
Thank you so very much!!!
i have two objects KNDY4__Sales_Order__c and KNDY4__Bill_to__c.these two are linked through lookup relationship.i am trying to insert one order record as follows
`KNDY4__Sales_Order__c order=New KNDY4__Sales_Order__c();
order.KNDY4__Ship_to__c ='a14q0000001LnIeAAK';
order.KNDY4__Bill_to__r.Predicted_External_ID__c ='CN-0222741-Sold To';
order.KNDY4__Company__c ='a0l1N00000BQQKF';
Insert order;`
i am geting error as {"Object reference not set to an instance of an object."}.
how to assign values to lookup field.can anyone help me
When linking a record based on an external id, the relationship field needs to be set to an sObject with the external id, and not just the value of the id itself.
On line 3, since KNDY4__Bill_to__c is a lookup field to a custom object possibly named KNDY4__Customer__c, you should set the value of the lookup to an instance of that object, e.g.
order.KNDY4__Bill_to__r = new KNDY4__Customer__c(KNDY4__Predicted_External_ID__c ='CN-0222741-Sold To');
I am trying to insert data in salesforce using upsert, for one field i am using the ExternalId field , i have tried many combinations but it fails...I get the error : the syntax should be object:externalId/lookupField
Any idea what is the exact syntax? Keep in mind i am inserting in table Account and the externalId field refers to Account also
object:externalId/lookupField is not very clear is it. There's a comment hidden away in the Pentaho code:
// We use an external key
// the structure should be like this :
// object:externalId/lookupField
// where
// object is the type of the object
// externalId is the name of the field in the object to resolve the value
// lookupField is the name of the field in the current object to update (is the "__r" version)
Lets say you're populating a Salesforce Object Foo__c, which has a Lookup field to Contact called Contact__c. The 'relationship name' for that lookup field would then be Contact__r.
On Contact lets say you have added an External ID called Legacy_Id__c and thats what you want to use when populating Foo__c.
What Pentaho would want in the Module Field column would then be:
Contact:Legacy_Id__c\Contact__r
The bit to the left of the slash is telling Pentaho which object/external id to map to. To the right of the slash, its telling Pentaho which lookup/relationship on Foo__c to fill in.
I am looking for select custom fields of "who" object using SOQL in slaesforce:
As I am testing following SOQL, its working fine.
Select t.Who.FirstName, t.Status From Task t Where t.ActivityDate = TODAY AND t.Who.Type = 'Lead'
but while add any custom field of lead object(who object here) in select statement, as mentioned following query, its give error as
No such column 'LeadExtraInfo__c' on entity 'Name'.
even LeadExtraInfo field exist into Lead object
Select t.Who.FirstName, t.Who.LeadExtraInfo__c t.ActivityDate From Task t Where t.ActivityDate = YESTERDAY AND t.Who.Type = 'Lead'
The Who and What relationships on Task are not normal relationships -- they are polymorphic. This means that they can refer to different types of objects.
In the case of Who, it can refer to a Lead or a Contact. As such, you can only get to a limited subset of the fields in the relationship, namely the ones mentioned in this doc page.
To get to other fields on Lead, you'll have to query the Task first to get its WhoId, then query Lead where the Id equals that WhoId value to get those other fields.
Quick Question. In the below code, you can see that the for loop (which takes all of the records in newTimecards and puts them as a variable called timecard) and adds the Resource_c to the resourceIds set. I'm confused about how this object is considered an ID data type. When an object is made in Salesforce does it automatically have an ID made, so that it knows Resource_c ID can be added to a set? Note that within the Resource_c Object there is also a field called Resource_ID_c. Resource_c within Timecard_c is a Master-Detail data type. Resource_c is the parent of Timecard_c.
Now that I think about it, resourceIds.add(timecard.Resource_c), does that reference the relationship between the two objects and then searches through Resource_c and adds the ID field Resource_ID_c automactically since it's a unique field?
Thanks for your help.
public class TimecardManager {
public class TimecardException extends Exception {}
public static void handleTimecardChange(List<Timecard__c> oldTimecards,
List<Timecard__c> newTimecards) {
Set<ID> resourceIds = new Set<ID>();
for (Timecard__c timecard : newTimecards) {
resourceIds.add(timecard.Resource__c);
}
Every object instance (and that means EVERY, including factory ones) has a unique organization level ID, whose field name is always Id, is covered by Apex type ID and is a case-sensitive string of 15 characters that also has an 18 character case-insensitive representation. The first three characters are object prefix code (e.g. 500 for a Case) so all instances of the same object share the same prefix. You see these values all across SF (for example in https://na1.salesforce.com/02s7000000BW59L the 02s7000000BW59L in the URL is the ID). When an instance of the object is created using INSERT DML operation, the salesforce automatically assigns unique value based on the prefix and the next available transactional sub ID, it all happens transparently to you.
This is not to be confused with object Name field which is a field you define when you create an object and which can be auto-incremented and so on (e.g. MYOBJ-{00000}) and which can have more meaning to a user than a cryptic ID
When you create a lookup or master-detail relationship it is ID that is being used to link the two instances, not the Name. In the above example Resource__c seems to be that lookup field and it contains Id value of row's master.
What the code does is it enumerates all resources used in timelines and builds a set of their IDs, the purpose of which is most probably to be used via WHERE Id IN :resourceIds clause to load resource details from master table.
mmix's answer is a great overview to what an ID is and where it comes from. To answer what I think is your specific question:
Any time there is a reference from one object to another (like here, between Timecard_c and Resource_c), the field representing the reference will be an ID. So, the for loop that calls resourceIds.add(timecard.Resource__c) is just building up your set of ID's (those 15-character strings). The timecard.Resource__c doesn't look through the Resource__c table to find the ID, timecard.Resource__c is the ID.