55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
var EventEmitter = require('events').EventEmitter;
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var sys = require('sys');
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var Query = function() {
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EventEmitter.call(this);
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};
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sys.inherits(Query, EventEmitter);
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var intParser = {
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fromDbValue: parseInt
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};
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Query.dataTypes = {
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20: intParser,
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21: intParser,
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23: intParser
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};
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var p = Query.prototype;
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p.processRowDescription = function(description) {
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this.fields = description.fields;
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};
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p.processDataRow = function(dataRow) {
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var row = dataRow.fields;
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var fields = this.fields || [];
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var field, dataType;
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for(var i = 0, len = row.length; i < len; i++) {
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field = fields[i] || 0
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var dataType = Query.dataTypes[field.dataTypeID];
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if(dataType) {
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console.log('found data type');
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row[i] = dataType.fromDbValue(row[i]);
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}
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}
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this.emit('row',row);
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};
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p.toBuffer = function() {
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var textBuffer = new Buffer(this.text+'\0','utf8');
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var len = textBuffer.length + 4;
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var fullBuffer = new Buffer(len + 1);
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fullBuffer[0] = 0x51;
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fullBuffer[1] = len >>> 24;
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fullBuffer[2] = len >>> 16;
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fullBuffer[3] = len >>> 8;
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fullBuffer[4] = len >>> 0;
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textBuffer.copy(fullBuffer,5,0);
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return fullBuffer;
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};
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module.exports = Query;
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