yhbatis/src/analysis.js

Like Mybatis for nodejs By YYH.

var analysisMapper = [];
function analysis () {}
var analysisObject = new analysis();
analysis.prototype.mappingSection = function(jsMapper){
	for(var i = 0 ; i < jsMapper.length ; ++ i){
		for(var key in jsMapper[i].MAPPER){
			if(key.toUpperCase() == "INSERT" || key.toUpperCase() == "UPDATE" || key.toUpperCase() == "SELECT" || key.toUpperCase() == "DELETE"){
				if(jsMapper[i].MAPPER[key].length == null)
					analysisMapper[jsMapper[i].MAPPER[key]["ID"]] = jsMapper[i].MAPPER[key]["_text"];
				else{
					for(var j = 0 ; j < jsMapper[i].MAPPER[key].length ; ++j){
						analysisMapper[jsMapper[i].MAPPER[key][j]["ID"]] = jsMapper[i].MAPPER[key][j]["_text"];
					}
				}
			}
		}
	}
}
analysis.prototype.sqlSection = function(section,dto,pool,callback){
	var copyMapper = new String(analysisMapper[section]);
	if(dto!=null){
		if(dto!=""){
			if(Object.keys(dto).length !=0){
				for(var key in dto)
				{
					var reg = new RegExp("#{"+key+".*?}","g");
					var tempDtoKey = (dto[key]+"").replace(/"/g, "\\\"");
					tempDtoKey = tempDtoKey.replace(/'/g, "\\\'");
					copyMapper = copyMapper.replace(reg,"'"+tempDtoKey+"'");
				}

				if((/#{.*?}/g).test(copyMapper)){
					throw new Error("dto failure "+copyMapper.match(/#{.*?}/g));
				}
			}		
		}	
	}

	copyMapper = copyMapper.toString();
	baseDataBase('error '+section,function(connection){
		connection.query(copyMapper, function(err, rows) {
		  	if (err) {
				console.error('error '+ section + err.stack);
				connection.release();
				return;
			}
			connection.release();
			callback(rows);
		});
	});
}
exports.analysis = analysisObject;

function baseDataBase (msg,callback){
	pool.getConnection(function(err, connection) {
		if (err) {
			console.error(msg + err.stack);
			return;
		}
		callback(connection);
	});
}