Component Tools and Services for Lightning Developer

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(No Transcript)
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• This is a roadmap on various components, tools
  and services for Lightning developers.These are
• Visualforce
• Using Lightning Components with Visualforce pages
• Lightning Data Services

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Visualforce and the Issues faced by Developers ?

• Visualforce is very well adopted by the
  developers. Visualforce is a server-centric
  technology in comparison to Lightning experience
  which is basically client-centric. So, it was
  needed that Visualforce must be evolved to a
  certain extent, for the developers to utilize its
  full potential.
• Issue 1
• The Markup of VF was not matching that of the
  design, so SLDS came into picture
• Issue 2
• The developers need to know where to start. We
  have the Visualforce Usage API and the Analyzer
  to help us in this type of issue.

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• Visualforce Usage API
• It acts as any other API and when used against
  the Salesforce org returns the number of page
  views of your Visualforce page for a duration of
  say last 30 days. This was for resolving the
  issue on migrating to Lightning experience.
• Visualforce Analyzer
• there is a parameter called Lightning Readiness
  Check, accessible from the setup. When we click,
  this runs a report by the running the metadata
  against the org.

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How to use Visualforce Pages with Lightning
Components ?

• The Visualforce standard component can be used
  through the App Builder and a Visualforce page is
  added to your page. The important factors are
• Different Origins
• Different DOMS
• Share the Data between the Visualforce page and
  the Lightning component

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Share the Data between the Visualforce page and
the Lightning component

• The user need to use the postMessage() method on
  the Window object. This allows to share the data
  between two window objects, even though these are
  hosted in different domains. However, there are
  two ways the data need to be shared - sending and
  receiving the message to/by the different window
  objects
• Sending messages to different Window Objects
• Receiving Messages by different Window Objects

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Lightning Data Services

• Lightning Data Services(LDS) is used to load,
  create, edit or delete a record in the component
  - without any need for any Apex code. It helps to
  streamline the process of obtaining the data.

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Advantages of Lightning Data Services

• The advantages are
• There is no need to write SOQL code or Apex Code.
  
• Shared cache is used for standard and custom
  components.
• All components are auto notified.
• Supports offline in Salesforce1.
• It offers the most efficient way to handle CRUD
  operations.
• It has inbuilt field-level and record-level
  security.
• It improves performance and user interface
  consistencies.

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Disadvantages of Lightning Data Services

• he disadvantages are
• Bulk record operations are not supported by it -
  similar to the StandardSetController
  functionality in Visualforce.
• It is unable to refresh a record, if that is
  updated by using a Data loader or another user.
  So, it is supportive of client side caching only
  and not server side caching.

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THANK YOU