[rp_param]

Description

I created this  tag to bypass the "built in" error that occurs when the find->get element does not exist in a pair array. It gets values from pair arrays such as client_postparams or client_getparams without throwing an error when the element does not exist. Instead it silently returns a NULL value.

Sample Usage

local('fruit' = (array: 'item1' = 'apples', 'item2' = 'bananas', 'item1' = 'strawberries', 'item3' = 'oranges'));

(rp_param: -pairs=(#fruit), -find='item1');

//->apples

(rp_param: -pairs=(#fruit), -find='item1', -instance=2);

//->strawberries

(rp_param: -pairs=(#fruit), -find='item1', -instance=3);

//->NULL

(rp_param: -pairs=(#fruit), -find='item7');

//->NULL

Source Code

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define_tag:'param', -namespace='rp_',
	
	-required='pairs', -type=array,
	
	-required='find',
	
	-optional='instance';
	
	!(local_defined:'instance') ? local('instance' = 1);
	
	!(local_defined:'value') ? local('value' = NULL);
	
	local('param_count' = #pairs->(find:#find)->size);
	
	
	loop(#param_count);
	
		local('value' = #instance <= (loop_count) ? #pairs->(find:#find)->(get:#instance)->value | NULL);
	
	/loop;
	
		return: #value;
		
/define_tag;

Related Tags

• client_param
• client_params
• lp_client_param
• lp_client_params

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