QuerySome

Note:

You can also set the maximum thread count in ColdFusion Administrator. Click Server Settings > Settings and specify the number of threads in Default Maximum Thread Count For Parallel Functions.

Description

Determines if at least one value in a query satisfies a specified condition.

Returns

True if at least one value matches a condition; false, otherwise.

Syntax

querySome(query, function(row [, currentRow] [, query] ){} [, parallel] [, maxThreadCount])

Member function

queryObj.Some(closure)

History

ColdFusion (2021 release): Introduced the following parameters:

parallel
maxThreadCount

New in ColdFusion (2018 release) Update 5.

Parameters

Parameter	Required/Optional	Description
query	Required	Query in which at least one value is to be searched.
closure	Required	Function that encapsulates criteria.
parallel	Optional	True if you want to enable parallel programming.
maxThreadCount	Optional	The number of threads the function can execute. The number of threads must be between 1-50. If the value exceeds 50, there is an exception.

Example

<cfscript> 
    myQuery=queryNew([ 
        {"Id":101,"Name":"John"}, 
        {"Id":102,"Name":"Jason"}, 
        {"Id":103,"Name":"Jack"}, 
        {"Id":104,"Name":"James"} 
    ]); 
    // First closure to check for Jim 
    doesPersonExist=(obj)=>return obj.name=="Jim" 
    writeOutput(QuerySome(myquery,doesPersonExist)) // Returns False 
    // Second closure to check for James 
    doesPersonExist=(obj)=>return obj.name=="James" 
    writeOutput("<br/>" & QuerySome(myquery,doesPersonExist)) // Returns True 
</cfscript>

Output

NO
YES

Using parallelization

<cfscript> 
    myQuery=queryNew([ 
        {"Id":101,"Name":"John"}, 
        {"Id":102,"Name":"Jason"}, 
        {"Id":103,"Name":"Jack"}, 
        {"Id":104,"Name":"James"} 
    ]); 
    // First closure to check for Jim 
    doesPersonExist=(obj)=>return obj.name=="Jim" 
    writeOutput(QuerySome(myquery,doesPersonExist)) // Returns False 
    // Second closure to check for James 
    doesPersonExist=(obj)=>return obj.name=="James" 
    writeOutput("" & QuerySome(myquery,doesPersonExist,true,5)) // Returns True 
</cfscript>

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