abstract class AControllerUtils {
	
	/**
	* In Rails parameters are usually 
	* multi-dimentional maps. 
	* "foo[bar]" and foo[zed] would be mapped to
	* params['foo']['bar'] and params['foo']['zed'] (in ruby)
	* ...which happens to be the same for Groovy. :)
	* 
	* Takes two parameters the params map to Railsify and a boolean indicating
	* if the modifications should be done to the map passed in or to 
	* a new copy. The second is optional, and by default it will modify 
	* the map in place. Returns the railsified map.
	*/
	static public railsifyParams(params, inPlace=true){
		if (params != null && params.size() > 0){
			def matchRegexp = /(\S+)\[(\S+)\]/ ;
			def newParams = [:];
			
			params.keySet().each { key ->
				def matcher = (key =~ matchRegexp);
				if (matcher.matches()){
					
					def newKey = matcher[0][1];
					def newSubKey = matcher[0][2];
					if (! params.containsKey(newKey)){
						if (inPlace){
							params[newKey] = [:];
						} else {
							newParams[newKey] = [:];
						}	
					}
					if (inPlace){
						params[newKey][newSubKey] = params[key];
					} else {
						newParams[newKey][newSubKey] = params[key];
					}
				}
			
			}
			if (! inPlace){
				return newParams;
			}
		}
		return params;
	}
}