Added support for automatic detection of Date objects.

Author: jeff-tenhave

json2dbf.js

@@ -2,7 +2,7 @@ var dbf = require('./'),
     fs = require('fs');
 
 var buf = dbf.structure([
-    {foo:'bar',noo:10},
+    {foo:'bar',noo:new Date()},
     {foo:'louie'}
 ]);
 

src/fields.js

@@ -4,6 +4,7 @@ var types = {
     string: 'C',
     number: 'N',
     boolean: 'L',
+    date: 'D',
     // type to use if all values of a field are null
     null: 'C'
 };
@@ -36,7 +37,7 @@ function inherit(a, b) {
 
 function obj(_) {
     var fields = {}, o = [];
-    for (var p in _) fields[p] = _[p] === null ? 'null' : typeof _[p];
+    for (var p in _) fields[p] = _[p] === null ? 'null' : _[p] instanceof Date ? 'date' : typeof _[p];
     for (var n in fields) {
         var t = types[fields[n]];
         if(t){

src/lib.js

@@ -33,6 +33,11 @@ module.exports.writeField = function writeField(view, fieldLength, str, offset)
     return offset;
 };
 
+module.exports.writeDate = function(date) {
+    if(!date || isNaN(date.getTime())) return "        ";
+    return ("0000"+date.getFullYear()).slice(-4) + ("00"+(date.getMonth()+1)).slice(-2) + ("00"+date.getDate()).slice(-2);
+};
+
 /**
  * @param {string} str
  * @returns {object}

src/structure.js

@@ -29,7 +29,7 @@ module.exports = function structure(data, meta) {
     view.setUint8(0, 0x03);
     // date of last update
     view.setUint8(1, now.getFullYear() - 1900);
-    view.setUint8(2, now.getMonth());
+    view.setUint8(2, now.getMonth()+1);
     view.setUint8(3, now.getDate());
     // number of records
     view.setUint32(4, data.length, true);
@@ -77,7 +77,7 @@ module.exports = function structure(data, meta) {
                 // date
                 case 'D':
                     offset = lib.writeField(view, 8,
-                        lib.lpad(val.toString(), 8, ' '), offset);
+                        lib.writeDate(val), offset);
                     break;
 
                 // number