Long time no see. I've got a question about iterating cancel button on the visualforce page. Here is the code:

Apex Controller:(This is for finding class from Teacher_Schedule__c, which is a custom object)

    private PageReference findClass(){
    String classtype = ts.ClassType__c;
    Datetime classstarttime = ts.Start_Time__c;
    Datetime classseventime = classstarttime.addHours(168);

    String schedulequery = 'SELECT Id, Name, Subject__c, ClassType__c, Center__c, Start_Time__c, End_Time__c FROM Teacher_Schedule__c ' 
    + 'WHERE Start_Time__c >= :classstarttime AND Start_Time__c <= :classseventime ';

    System.debug('citiesCondition size : ' + this.citiesCondition.size());

        schedulequery += ' AND Center__c IN :citiesCondition ';
    }else {
        schedulequery += ' AND Center__c = :selectedCenter ';
    if (classtype != null) {
        schedulequery += ' AND ClassType__c = :classtype';
    System.debug('schedulequery : ' + schedulequery);
    scheduleList = Database.query(schedulequery);
    System.debug('====scheduleList=' + scheduleList.size());

    return ApexPages.currentPage();


Visualforce: (For displaying classes I've found)

        <apex:pageBlock title="Search Results">
            <apex:pageBlockTable value="{!scheduleList}" var="s">
                <apex:column value="{!s.Name}" />
                <apex:column value="{!s.ClassType__c}" />
                <apex:column value="{!s.Center__c}" />
                <apex:column value="{!s.Subject__c}" />
                <apex:column value="{!s.Start_Time__c}" />
                <apex:column value="{!s.End_Time__c}" />
                    <apex:commandLink  value="Book" action="{!doAction}" onclick="return setActionEvent('Page:Form:actionEvent','book')" styleClass="btn" style="text-decoration: none" >
                        <apex:param value="{!s.Id}" assignTo="{!scheduleid}" name="scheduleid" />

Right now, the page looks like this, which is perfect I think, but I do wanna either hide the record has been booked or replace the book button with cancel.

I can realize that I need to iterate the schedulelist again to get each reacord and identify whether the class has been booked or not, but I cannot really make it happen. Any idea about this?


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