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node-task/node_modules/mysql2/lib/packets/text_row.js

39 lines
1.0 KiB
JavaScript

var Packet = require('../packets/packet');
function TextRow(columns)
{
this.columns = columns || [];
}
TextRow.fromPacket = function(packet) {
//packet.reset(); // set offset to starting point?
var columns = [];
while(packet.haveMoreData()) {
columns.push(packet.readLengthCodedString());
}
return new TextRow(columns);
};
TextRow.toPacket = function(column) {
var sequenceId = 0; // TODO remove, this is calculated now in connecton
var buffer, packet;
var length = 0;
column.forEach(function(val) {
if (val === null || typeof(val) == 'undefined') return ++length;
var str = val.toString(10);
length += Packet.lengthCodedNumberLength(str);
length += str.length;
});
buffer = new Buffer(length+4);
packet = new Packet(sequenceId, buffer);
packet.offset = 4;
column.forEach(function(val) {
if (val === null) return packet.writeNull();
if (typeof val == 'undefined') return packet.writeInt8(0);
packet.writeLengthCodedString(val.toString(10));
});
return packet;
};
module.exports = TextRow;