Question

I am running a query for my application, that is really making me wish I used ORM. My table are structured as follows:

tabs

• id
• name
• sort

fields

• id
• label
• tabid

As you can assume there is a one-to-many relationship between fields and tabs. What I would like to do is, using pure SQL if possible, create a query that has the tabs and underneath each tab shows a subquery of all fields.

Currently I am just doing the following, but I was wondering if there is something better to do.

<cfquery name="local.tabQuery" attributeCollection="#Variables.dsn#">
     SELECT id,name FROM tabs ORDER BY sort
</cfquery>
<cfset local.tabs = [] />
<cfloop query="local.tabQuery">
     <cfquery name="local.fields" attributeCollection="#Variables.dsn3">
          SELECT * FROM fields WHERE tabid = <cfqueryparam value="#local.tabQuery.id#" cfsqltype="cf_sql_integer" />
     <cfquery>
     <cfset arrayAppend(local.tabs, local.fields) />
</cfloop>

Note: That is not my actual code, but that should, in theory, work just fine.

Answer 1

You want grouped output.

<cfquery name="local.tabQuery" attributeCollection="#Variables.dsn#">
    SELECT t.id, t.name, t.sort, f.id AS fieldID, f.label
    FROM tabs t  INNER JOIN fields f ON t.id = f.tabID
    ORDER BY t.sort
</cfquery>

<cfoutput query="local.tabQuery" group="sort">
    Tab: #local.tabQuery.name#<br>

    <cfoutput>
        Field: #local.tabQuery.label#<br>
    </cfoutput>
</cfoutput>