From 72a5bf49258b5dabb8a5322e72767ad6823b4de3 Mon Sep 17 00:00:00 2001
From: erickson <erickson@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Fri, 12 Aug 2005 20:53:02 +0000
Subject: [PATCH] fieldmapper generator code

git-svn-id: svn://svn.open-ils.org/ILS/trunk@1652 dcc99617-32d9-48b4-a31d-7c20da2025e4
---
 Open-ILS/src/javascript/lib/js/opac/fmgen.js | 64 ++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Open-ILS/src/javascript/lib/js/opac/fmgen.js

diff --git a/Open-ILS/src/javascript/lib/js/opac/fmgen.js b/Open-ILS/src/javascript/lib/js/opac/fmgen.js
new file mode 100644
index 0000000000..3f2526e27b
--- /dev/null
+++ b/Open-ILS/src/javascript/lib/js/opac/fmgen.js
@@ -0,0 +1,64 @@
+/* generate fieldmapper javascript classes.  This expects a global variable
+	called 'fmclasses' to be fleshed with the classes we need to build */
+
+function Fieldmapper() {}
+
+var errorstr = "Attempt to build fieldmapper object with non-array";
+
+Fieldmapper.prototype.clone = function() {
+	var obj = new this.constructor();
+
+	for( var i in this.a ) {
+		var thing = this.a[i];
+		if(thing == null) continue;
+
+		if( thing._isfieldmapper ) {
+			obj.a[i] = thing.clone();
+		} else {
+
+			if(instanceOf(thing, Array)) {
+				obj.a[i] = new Array();
+
+				for( var j in thing ) {
+
+					if( thing[j]._isfieldmapper )
+						obj.a[i][j] = thing[j].clone();
+					else
+						obj.a[i][j] = thing[j];
+				}
+			} else {
+				obj.a[i] = thing;
+			}
+		}
+	}
+	return obj;
+}
+Fieldmapper.prototype.isnew = function(n) { if(arguments.length == 1) this.a[0] =n; return this.a[0]; }
+Fieldmapper.prototype.ischanged = function(n) { if(arguments.length == 1) this.a[1] =n; return this.a[1]; }
+Fieldmapper.prototype.isdeleted = function(a) { if(arguments.length == 1) this.a[0] =n; return this.a[0]; }
+function FMEX(message) { this.message = message; }
+FMEX.toString = function() { return "FieldmapperException: " + this.message + "\n"; }
+
+var string = "";
+for( var cl in fmclasses ) {
+	string += cl + ".prototype = new Fieldmapper(); " + 
+						cl + ".prototype.constructor = " + cl + ";" +
+						cl + ".baseClass = Fieldmapper.constructor;" +
+						"function " + cl + "(a) { " +
+							"this.classname = \"" + cl + "\";" +
+							"this._isfieldmapper = true;" +
+							"if(a) { if(a.constructor == Array) this.a = a; else throw new FMEX(errorstr);} else this.a = []}"; 
+
+	string += cl + "._isfieldmapper=true;";
+
+	for( var pos in fmclasses[cl] ) {
+		var p = parseInt(pos) + 3;
+		var field = fmclasses[cl][pos];
+		string += cl + ".prototype." + field + 
+			"=function(n){if(arguments.length == 1)this.a[" + 
+			p + "]=n;return this.a[" + p + "];};";
+	}
+}
+eval(string);
+
+
-- 
2.43.2