An introduction to lightning data service and it's implementation presented by me in DF17GG organized by Noida Salesforce Developer User Group

1. - Rahul Malhotra

2. About Me
 Currently working as a software
engineer intern at SaasFocus.
 Worked as a full stack developer
intern earlier.

3. Today’s Agenda
 Introduction to Lightning Data Service
 CRUD Operations in Lightning Data Service
 Difference between <force:recordPreview /> and <force:recordData />
 Important Considerations for using Lightning Data Service
 Handling Result of Lightning Data Service

4. LDS Introduction
 Lightning Data Service allows us to load, create, delete and edit a
record without requiring apex code.
 Records loaded in Lightning Data Service are cached and shared across
all components
 Field level security and record sharing is inbuilt
 When one component updates a record, the other components using it
are notified.
 Component usually refresh automatically if data is accessed in VIEW
mode
 We have to manually refresh the component data in case of EDIT mode

5. CRUD Operations in LDS
<force:recordData aura:id="forceRecordCmp"
recordId="{!v.recordId}"
layoutType="{!v.layout}"
fields="{!v.fieldsToQuery}"
mode="VIEW"
targetRecord="{!v.record}"
targetFields="{!v.simpleRecord}"
targetError="{!v.error}" />
Methods Available
 getNewRecord()
 reloadRecord()
 saveRecord()
 deleteRecord()

6. <force:recordPreview /> v/s <force:recordData />
 <force:recordPreview /> is deprecated and is completely replaced by
<force:recordData />
 <force:recordData /> returns records in new shape and includes a new
attribute – targetFields
 v.targetFields.Name === v.targetRecord.fields.Name.value

7. It’s Time to Code

8. Considerations for LDS
 Lightning Data Service is only available in Lightning Experience and
Salesforce1
 Bulk operations are not supported in LDS
 Querying for a record by anything other than record ID isn’t available
 Lightning Data Service notifies listeners about data changes only if the
changed fields are the same as in the listener’s fields or layout.
 Lightning Data Service Supports these objects :-
https://developer.salesforce.com/docs/atlas.en-
us.lightning.meta/lightning/data_service_considerations.htm

9. Resources
 Lightning Data Service Trailhead -
https://trailhead.salesforce.com/modules/lightning_data_service
 Developer Documentation -
https://developer.salesforce.com/docs/atlas.en-
us.lightning.meta/lightning/data_service.htm

10. Q & A

11. Thank You
 Github Project Link:- http://bit.ly/ldsrepo
 My Twitter Handle:- @rahulcoder
 About Me: http://bit.ly/rahulabout
 Salesforce Chatter: http://bit.ly/rahulforce
 Blog: http://sfdcstop.blogspot.in/