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Re: A little help with some code and theory

Subject: Re: A little help with some code and theory
From: GArlington <garlington@xxxxxxxxxxxxx>
Date: Fri, 25 Jul 2008 02:47:12 -0700 (PDT)
Newsgroups: macromedia.coldfusion.getting_started

On Jul 24, 9:41 pm, "NCX001" <webforumsu...@xxxxxxxxxxxxxx> wrote:
> Hey guys, I'm kinda new to this whole programming thing so bare with me 
> please.
> I have a little problem that I just can't seem to get my hear around. I have a
> working on an inventory management page. It keeps track of what software is
> installed where and how many copies we have, and serials and such. Well, this
> page was set up long before I started here and it wasn't too friendly. So I'm
> editing it and adding some new features. Well one of them is displaying the
> ?available installs count? with the search results.

I suspect that
<cfquery name="getAppsCounts" dataSource="#mainDS#">
Select wa.id, count(wi.id) as installCount
from workstationApps wa
left join workstationAppIndex wi on wa.id = wi.id
group by wa.id
order by wa.id
</cfquery>
is what you are looking for, but it is NOT very clear from your
description...
>
>  Here is my problem. The way the system keeps track of what software is
> installed where is by adding taking the appId from the table it with all the
> app's information on it (the sn, name, max installs, etc) and creating a new
> entry in another table that indexs that appId and the workstation it is
> installed on. (along with an Install id) well the only way to check to see how
> many copies is installed is to get the record count for a particular appId.
>
>  This is where I run into trouble. When a user searches for apps the results
> page displays the apps that still have installs available. So where the record
> count of getInstallCount  for whatever appId is less than the max installs.
> Well what is the best way to do this since to get the record count of
> getInstallCount I need an appID and the appID isn't found until I do the 
> search
> query. What I'm using now is this but it always returns 0 for current Install
> Count. See the attached Snippet of code:
>
>  I see what it is doing.  It is getting the isntallCount for all appIds, but I
> dont' know how to narrow it down without doing the search first, and I don't
> know how to do the search with out getting the install count first. Any ideas
> or advice would rock guys. Like I said I'm kinda new to this programming stuff
> but it is awesome! Thanks!
>
>  Kevin
>
>  <cfif client.availableSoftware eq "true">
>        <cfif isDefined('form.searchCriteria')>
>              <!--- maybe will get current Install Count --->
>        <cfquery name="getAppsID" dataSource="#mainDS#">
>            Select id from workstationApps
>        </cfquery>
>        <!--- loop to find the install Count for each record --->
>        <cfloop query="getAppsID">
>              <cfquery name="getInstallCount" dataSource="#mainDS#">
>                select count(*) as installCount from workstationAppIndex
>                where appID = #getAppsID.Id#
>            </cfquery>
>
>            <!--- if searched and show only available --->
>            <cfquery name="getApps" datasource="#mainDS#">
>                select * from workstationApps
>                Where maxConcurrentInstalls > #getInstallCount.InstallCount#
>                and
>                #form.searchType# like '%#form.searchCriteria#%'
>            </cfquery>
>    </cfloop>
>  <!--- it doesn't get the current intallCount : ( --->
>        <cfelse>
>            <!--- if not searched and only available --->
>            <cfquery name="getApps" datasource="#mainDS#">
>                select * from workstationApps
>                Where maxConcurrentInstalls > #getInstallCount.InstallCount#
>            </cfquery>
>        </cfif>
>    </cfif>


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