ChatterEditHistory.apexp

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<!--

VisualForce page that displays the editing history for a Chatter thread.
Admins and other interested parties can use this page instead of doing
a SOQL query on the FeedRevision sObject.

See https://github.com/alouie-sfdc/ChatterEditHistory for more information.


@author arthur.louie

-->

<apex:page controller="FeedRevisionController">
    <apex:form >
        <apex:pageBlock title="Get the edit history of posts and comments in a Chatter thread">
            Chatter thread URL: 
            <apex:outputText value=" "/>
            <apex:inputText value="{!url}" size="100" />
            <apex:commandButton value="Get history" />
        </apex:pageBlock>
    </apex:form>
    
    <!-- Don't render anything else unless a URL is supplied. -->
    <apex:form rendered="{!IF(url == null, false, true)}">

        <apex:outputText value="Error: Chatter thread not found. URL must contain an ID that starts with 0D5." rendered="{!IF(feedItemAndRevisions == null, true, false)}" style="border-style: solid; border-width: 1px; padding: 5px; background-color: yellow"/>

        <apex:pageBlock title="Current Post" rendered="{!IF(feedItemAndRevisions == null, false, true)}">

            <i>
            <apex:outputText >Current post is at revision</apex:outputText>
            <apex:outputText value=" {!feedItemAndRevisions.currentFeedItem.revision}"/>
            <apex:outputText >, originally posted by</apex:outputText>
            <apex:outputText value=" "/>
            <apex:outputLink value="/{!feedItemAndRevisions.currentFeedItem.createdById}">{!feedItemAndRevisions.currentFeedItem.createdBy.name}</apex:outputLink> 
            <apex:outputText value=", feed item ID: "/>
            <apex:outputLink value="/{!feedItemId}">{!feedItemId}</apex:outputLink> 
            </i>
    
            <p/>
            <apex:outputText value="{!feedItemAndRevisions.currentFeedItem.body}" style="border-style: solid; border-width: 1px; padding: 5px; background-color: yellow"/>
        </apex:pageBlock>

        <apex:pageBlock title="Edits to the Post" rendered="{!IF(feedItemAndRevisions == null, false, true)}">
            <apex:outputText style="label" value="No edits" rendered="{!IF(feedItemAndRevisions.revisions == null || feedItemAndRevisions.revisions.size == 0, true, false)}"/>

            <apex:repeat value="{!feedItemAndRevisions.revisions}" var="revision">
                <apex:pageBlockSection >
                    <apex:pageBlockSectionItem >
                        <apex:outputText style="label" value="Revision:"></apex:outputText>
                        <apex:outputLabel value="{!revision.revision}" /> 
                    </apex:pageBlockSectionItem>
                </apex:pageBlockSection>

                <apex:pageBlockSection >
                    <apex:pageBlockSectionItem >
                        <apex:outputText style="label" value="Edited by:"></apex:outputText>
                        <apex:outputLink value="/{!revision.createdById}">{!revision.createdBy.name}</apex:outputLink> 
                    </apex:pageBlockSectionItem>
                </apex:pageBlockSection>

                <apex:pageBlockSection >
                    <apex:pageBlockSectionItem >
                        <apex:outputText style="label" value="Value before the revision:"></apex:outputText>
                        <apex:outputLabel value="{!revision.value}" style="border-style: solid; border-width: 1px; padding: 5px; background-color: yellow"/> 
                    </apex:pageBlockSectionItem>
                </apex:pageBlockSection>

                <apex:pageBlockSection >
                    <apex:pageBlockSectionItem >
                        <apex:outputText style="label" value="Edited attribute:"></apex:outputText>
                        <apex:outputLabel value="{!revision.editedAttribute}" /> 
                    </apex:pageBlockSectionItem>
                </apex:pageBlockSection>

                <p/>       
            </apex:repeat>

        </apex:pageBlock>

        <apex:pageBlock title="Edits to the Comments" rendered="{!IF(feedItemAndRevisions == null, false, true)}">

            <apex:outputText style="label" value="No comments" rendered="{!IF(commentsAndRevisions == null || commentsAndRevisions.size == 0, true, false)}"/>

            <apex:variable value="{!0}" var="commentCounter"/>
  
            <apex:repeat value="{!commentsAndRevisions}" var="commentAndRevs">

                <apex:variable var="commentCounter" value="{!commentCounter + 1}"/>
        
                <apex:pageBlock title="Comment {!commentCounter}">
                    <i>
                    <apex:outputText >Current comment is at revision</apex:outputText>
                    <apex:outputText value=" {!commentAndRevs.comment.revision}"/>
                    <apex:outputText >, originally posted by</apex:outputText>
                    <apex:outputText value=" "/>
                    <apex:outputLink value="/{!commentAndRevs.comment.createdById}">{!commentAndRevs.comment.createdBy.name}</apex:outputLink>
                    </i>
                    <p/>
                    <apex:outputText value=" {!commentAndRevs.comment.commentBody}" style="border-style: solid; border-width: 1px; padding: 5px; background-color: yellow"/>
                </apex:pageBlock>
    
                <apex:outputText style="label" value="No edits" rendered="{!IF(commentAndRevs.commentRevisions == null || commentAndRevs.commentRevisions.size == 0, true, false)}"/>
    
                <apex:repeat value="{!commentAndRevs.commentRevisions}" var="revision">

                    <apex:pageBlockSection >
                        <apex:pageBlockSectionItem >
                            <apex:outputText style="label" value="Revision:"></apex:outputText>
                            <apex:outputLabel value="{!revision.revision}" /> 
                        </apex:pageBlockSectionItem>
                    </apex:pageBlockSection>

                    <apex:pageBlockSection >
                        <apex:pageBlockSectionItem >
                            <apex:outputText style="label" value="Edited by:"></apex:outputText>
                            <apex:outputLink value="/{!revision.createdById}">{!revision.createdBy.name}</apex:outputLink> 
                        </apex:pageBlockSectionItem>
                   </apex:pageBlockSection>


                    <apex:pageBlockSection >
                        <apex:pageBlockSectionItem >
                            <apex:outputText style="label" value="Value before the revision:"></apex:outputText>
                            <apex:outputLabel value="{!revision.value}" style="border-style: solid; border-width: 1px; padding: 5px; background-color: yellow"/>
                        </apex:pageBlockSectionItem>
                    </apex:pageBlockSection>

                    <apex:pageBlockSection >
                        <apex:pageBlockSectionItem >
                            <apex:outputText style="label" value="Edited attribute:"></apex:outputText>
                            <apex:outputLabel value="{!revision.editedAttribute}" /> 
                        </apex:pageBlockSectionItem>
                    </apex:pageBlockSection>
                    
                </apex:repeat>

                <p/>
                       
            </apex:repeat>

        </apex:pageBlock>

    </apex:form>
    
</apex:page>