Forum Discussion

rwm's avatar
rwm
Advisor
11 years ago

Top Kudoed for a role

I want to create a listing very similar to the Top Kudoed Authors list, except only for users with a specific role, and only with a kudo count from the past 30 days.   I know I can get the list of ...
  • HaidongG's avatar
    HaidongG
    11 years ago

    Hi rwm ,

     

    this is not a full answer to your question, but for 

     

    "it seems that Freemarker in Lithium does not allow you to add key/value pairs of variables to a hash.".....

     

    you can creat a hash like 

     

    <#assign retHash = {} />

     and add values to your hash like

    <#assign retHash = retHash + { maxKey:maxValue} />

     

    there is no direct sorting method in freemarker as I am aware. so I had implemented a selection sort (?) function which just scan the hash and find the biggest pair and put into another hash. here is the code if you are interested :)

     

    <#function sortHashByValue inHash>
    <#assign retHash = {} />
    <#list inHash?keys as outterKey>
        <#assign maxKey = "" />
        <#assign maxValue = 0 />    
        <#list inHash?keys as curKey>
            <#assign currentValue = inHash[curKey]?number />
            <#if !(retHash[curKey]?? ) >           
                <#if (maxKey == "") || ( currentValue > maxValue )  >
                    <#assign maxKey = curKey />
                    <#assign maxValue = currentValue />
                </#if> 
            </#if>
        </#list>
        <#if (maxKey != "") >
            <#assign retHash = retHash + { maxKey:maxValue} />
        </#if>
    </#list>
    <#return retHash>
</#function>

     

    it sorts the hash based on the value.

HaidongG's avatar
HaidongG
Lithium Alumni (Retired)

Hi rwm ,

 

this is not a full answer to your question, but for 

 

"it seems that Freemarker in Lithium does not allow you to add key/value pairs of variables to a hash.".....

 

you can creat a hash like 

 

<#assign retHash = {} />

 and add values to your hash like

<#assign retHash = retHash + { maxKey:maxValue} />

 

there is no direct sorting method in freemarker as I am aware. so I had implemented a selection sort (?) function which just scan the hash and find the biggest pair and put into another hash. here is the code if you are interested :)

 

<#function sortHashByValue inHash>
    <#assign retHash = {} />
    <#list inHash?keys as outterKey>
        <#assign maxKey = "" />
        <#assign maxValue = 0 />    
        <#list inHash?keys as curKey>
            <#assign currentValue = inHash[curKey]?number />
            <#if !(retHash[curKey]?? ) >           
                <#if (maxKey == "") || ( currentValue > maxValue )  >
                    <#assign maxKey = curKey />
                    <#assign maxValue = currentValue />
                </#if> 
            </#if>
        </#list>
        <#if (maxKey != "") >
            <#assign retHash = retHash + { maxKey:maxValue} />
        </#if>
    </#list>
    <#return retHash>
</#function>

 

it sorts the hash based on the value.

rwm's avatar
rwm
Advisor
11 years ago

Thank you HaidongG!   This was a big help and got me much closer to my goal.

 

I had read that the method of hash creation can be slow, but if that is the only way to do it then it is what it is.   I did not notice any significant performance hit, even using several hashes, so it appears to be fine.

 

Thanks again!