StructUpdate

Description

Updates a key with a value. Returns Yes if the function is successful and throws an exception if an error occurs.

Category

Structure functions

Syntax


StructUpdate(structure, key, value) 

See also

StructClear, StructDelete, StructFind, StructInsert, StructIsEmpty, StructKeyArray, StructCount, StructNew, StructAppend, StructGet, StructSort, StructFindKey, StructClear

Parameters

Parameter
Description
structure
Structure to update
key
Key whose value is updated
value
New value

Usage

This function throws an exception if structure does not exist.

Example

<!--- This example illustrates usage of StructUpdate. --->

<P>This file is similar to addemployee.cfm, which is called

by StructNew, StructClear, and StructDelete. To test this file,

copy the &LT;CFELSEIF&GT; statement to the appropriate place

in addemployee.cfm. It is an example of a custom tag used 

to add employees. Employee information is passed through the 

employee structure (the EMPINFO attribute). In UNIX, you must 

also add the Emp_ID.



<cfswitch expression = "#ThisTag.ExecutionMode#">

  <cfcase value = "start">

   <cfif StructIsEmpty(attributes.EMPINFO)>

    <cfoutput>Error. No employee data was passed.</cfoutput>

    <cfexit method = "ExitTag">

   <cfelseIf StructFind(attributes.EMPINFO, "department") EQ "">

    <cfscript>

     StructUpdate(attributes.EMPINFO, "department", "Unassigned");

    </cfscript>

    <cfexit method = "ExitTag">

      <cfelse>      

    ...





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