Skip to main content

Custom Star Rating Component Using Visualforce In Salesforce

Have you ever met with a requirement where you had to Rate list of records in salesforce and store the ratings related to Individual user and then do an average rating based on rating for all users for the records ?The records that I refer  to may be your custom objects ,or leads or may be your Accounts or opportunities .Providing ability to Rate records is one of the common requirements if you are building a site where you showcase your products .Salesforce knowledge article provides this facility but the solution we will do here will be rating custom object or standard object and we assume you don't use knowledge module for your purpose .

Our approach will be to use a simple plugin that I liked very much and special thanks to the actual author who has developed this plugin Kartik Visweswaran.I salute his work and my work is just integrating his work with salesforce Visualforce Page .

Lets get started with simple demo that he has hosted on his site ,the demo link is as below

http://plugins.krajee.com/star-rating/demo

Lets quickly grab his plugin from the github repo .

Assumptions for this work

I have created a Junction object between user and Account and have named it as Account Rating .The Account Rating object has a custom field created of number type Rating to store the rated no from visualforce interface

Visualforce Code 

We will import all the jquery,CSS,bootstrap plugins into the static resource and reference the same in the VF.The entire code is as shown below



The meat of the code above is how we have used script to call javascript remoting function to upsert the junction object

Apex Code


Let me take some time in explaining this on what we have been doing here,

The Input HTML-5 tag has a javascript that detects when the rating changes .Once the rating star is clicked we call js remoting to upsert user rating for the Account.The demo page appears as below link .Note I have kept code very simple .and may be once I have time i will enhance this to make it generalized for any object and fields.

http://webzone-developer-edition.ap1.force.com/webzone/RatingDemo
I have made a small unmanaged package in case you want to pull this and play in your org to see how this goes

Use this URL to install the package into any organization:
https://login.salesforce.com/packaging/installPackage.apexp?p0=04t90000000FNdn

Note: If you are installing into a sandbox organization you must replace the initial portion of the URL with http://test.salesforce.com

Also a small video I have attached to explain the functionality clearly .Also note from karthik demo you can add all style elements .Check his demo page for more styling .The attributes can be configurable as well


Enjoy coding .....

Popular posts from this blog

TLS 1.0 has been disabled For Sandbox - Salesforce

Salesforce has finally disabled TLS 1.0 in sandboxes .This is in preparation for disablement later in 2017 for PRODUCTION instances .

Now this would have not impacted your integrations in PRODUCTION org but if your integration is broken in your sandbox ,this means you have only few months to sort this and fix before this affects your integration for PROD live users .
Before we deep drive on how to possibly fix this and work with your external systems to figure solution ,lets first understand what is TLS and why did SFDC moved to 1.x and had to disable TLS 1.0
TLS 1.0 Explained























TLS 1.1 Improvements 
Added protection against cipher-block chaining (CBC) attacks. Support for IANA registration of parameters.

Clearly TLS 1.1 is more secure(Compared to 1.0) and protects salesforce resources against CBC attacks .
Identify if this change broke anything .The things that can be affected in your instances are as below Web requests to Salesforce URLs that require authenticationWeb requests to the login pag…

Opening Modal Using Lightning Component Framework of SFDC

One of my friend from India threw a challenge .The challenge was to open a modal by using latest and greatest lightning components framework and modals design from SLDS .For the love of community I thought of sharing the entire code base that I did .

So here we start ..

Business Use Case - Need a handy SalesLeader board component that can be used to display the Sales revenue generated by each sales rep for current year in the order of decreasing total revenue .On click of the tile ,we will show detail opportunity list aggregating the revenue .

The component can be dragged in lightning design experience or in App builder lightning Page .

Video Demonstration-



SalesLeaderBoard from Mohith Kumar Shrivastava on Vimeo.








Frameworks Used -
Lightning Design Systems (SLDS) for CSSLightning Component Framework for client side logicApex aura enabled class for backend logicApproach
The component hierarchy is very important to imagine or mindmap before we dig deeper- SalesLeaderMain
    -SalesLeaderBoard
    …

Invoking Apex Callout From Process Builder

Process builder is GA in Spring 15 and one of the queries I came across was around how to invoke apex callouts from Process builder .

Before process builder came we had two common approaches of calling webservice 

1)We have outbound messages as one of the Actions for workflows.This works if other party implements the WSDL that is generated once Outbound messaging is defined with appropriate end point .

2)Most of times future method invoked through triggers allowed to do apex callouts and invoke external web service provided the future method is annotated with @future(callout=true).This provides lot of flexibility and one of the best approaches .

3)Flow triggers was in BETA and this was also one of the ways we could invoke callouts provided the Flow implements process plugin .To understand in detail how to implement process plugin refer to the below example

The purpose of this blogpost is to demonstrate the new possibility of invoking apex callout through Process Builder 

I tried initi…