var mapRowData = function(row) {
var result = {};
for(var i = 0, len = row.length; i < len; i++) {
var item = row[i];
result[item.name] = item.value == null ? null : types.getTypeParser(item.type, 'text')(item.value);
}
return result;
}
p.handleRowDescription = function(msg) {
this._fieldNames = [];
this._fieldConverters = [];
var len = msg.fields.length;
for(var i = 0; i < len; i++) {
var field = msg.fields[i];
var format = field.format;
this._fieldNames[i] = field.name;
this._fieldConverters[i] = Types.getTypeParser(field.dataTypeID, format);
};
};
Result.prototype.addFields = function(fieldDescriptions) {
//clears field definitions
//multiple query statements in 1 action can result in multiple sets
//of rowDescriptions...eg: 'select NOW(); select 1::int;'
//you need to reset the fields
if(this.fields.length) {
this.fields = [];
this._parsers = [];
}
for(var i = 0; i < fieldDescriptions.length; i++) {
var desc = fieldDescriptions[i];
this.fields.push(desc);
this._parsers.push(types.getTypeParser(desc.dataTypeID, desc.format || 'text'));
}
};
Query.prototype.handleRowDescription = function(msg) {
this._fieldNames = [];
this._fieldConverters = [];
var len = msg.fields.length;
for(var i = 0; i < len; i++) {
var field = msg.fields[i];
var format = field.format;
var dupecount = 0;
if(this.uniqueFields) {
this._fieldNames.forEach(function(val) {if (new RegExp("^"+field.name+"(\\$\\d+)?$").test(val)) { dupecount++;} });
}
this._fieldNames[i] = field.name+(dupecount?'$'+dupecount:'') ;
this._fieldConverters[i] = Types.getTypeParser(field.dataTypeID, format);
}
if(this.callback) {
this._result.addFieldNames(this._fieldNames);
}
};
Result.prototype.addFields = function(fieldDescriptions) {
//clears field definitions
//multiple query statements in 1 action can result in multiple sets
//of rowDescriptions...eg: 'select NOW(); select 1::int;'
//you need to reset the fields
if(this.fields.length) {
this.fields = [];
this._parsers = [];
}
var ctorBody = "";
for(var i = 0; i < fieldDescriptions.length; i++) {
var desc = fieldDescriptions[i];
this.fields.push(desc);
var parser = types.getTypeParser(desc.dataTypeID, desc.format || 'text');
this._parsers.push(parser);
//this is some craziness to compile the row result parsing
//results in ~60% speedup on large query result sets
ctorBody += inlineParser(desc.name, i);
}
this.RowCtor = Function("parsers", "rowData", ctorBody);
};