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new fieldmapper layout reduces size of generated code (by a factor of 8 :))
[Evergreen.git] / Open-ILS / src / extras / fieldmapper.pl
1 #!/usr/bin/perl
2 use strict; use warnings;
3 use Data::Dumper; 
4 use OpenILS::Utils::Fieldmapper;  
5
6 my $map = $Fieldmapper::fieldmap;
7
8 # if a true value is provided, we generate the web (light) version of the fieldmapper
9 my $web = $ARGV[0];
10 # List of classes needed by the opac
11 my @web_hints = qw/ex mvr au aou aout asv asva asvr asvq 
12                 circ acp acpl acn ccs perm_ex ahn ahr aua ac 
13                 actscecm crcd crmf crrf mus mbts aoc aus/;
14
15 print <<JS;
16
17 //  ----------------------------------------------------------------
18 // Autogenerated by fieldmapper.pl
19 // Requires JSON.js
20 //  ----------------------------------------------------------------
21
22 function Fieldmapper() {}
23
24 var errorstr = "Attempt to build fieldmapper object with non-array";
25
26 Fieldmapper.prototype.clone = function() {
27         var obj = new this.constructor();
28
29         for( var i in this.a ) {
30                 var thing = this.a[i];
31                 if(thing == null) continue;
32
33                 if( thing._isfieldmapper ) {
34                         obj.a[i] = thing.clone();
35                 } else {
36
37                         if(instanceOf(thing, Array)) {
38                                 obj.a[i] = new Array();
39
40                                 for( var j in thing ) {
41
42                                         if( thing[j]._isfieldmapper )
43                                                 obj.a[i][j] = thing[j].clone();
44                                         else
45                                                 obj.a[i][j] = thing[j];
46                                 }
47                         } else {
48                                 obj.a[i] = thing;
49                         }
50                 }
51         }
52         return obj;
53 }
54
55 function FMEX(message) { this.message = message; }
56 FMEX.toString = function() { return "FieldmapperException: " + this.message + "\\n"; }
57
58 var _c = {};
59
60 JS
61
62 for my $object (keys %$map) {
63
64         if($web) {
65                 my $hint = $map->{$object}->{hint};
66                 next unless (grep { $_ eq $hint } @web_hints );
67         }
68
69         my $short_name = $map->{$object}->{hint};
70
71         my @fields;
72         for my $field (keys %{$map->{$object}->{fields}}) {
73                 my $position = $map->{$object}->{fields}->{$field}->{position};
74                 $fields[$position] = $field;
75         }
76
77         print "_c[\"$short_name\"] = [";
78         for my $f (@fields) { print "\"$f\","; }
79         print "];\n"
80
81
82
83 }
84
85 print <<JS;
86
87         var string = "";
88         for( var cl in _c ) {
89                 string += cl + ".prototype = new Fieldmapper(); " + 
90                                                         cl + ".prototype.constructor = " + cl + ";" +
91                                                         cl + ".baseClass = Fieldmapper.constructor;" +
92                                                         "function " + cl + "(a) { " +
93                                                                 "this.classname = \\\"" + cl + "\\\";" +
94                                                                 "this._isfieldmapper = true;" +
95                                                                 "if(a) { if(a.constructor == Array) this.a = a; else throw new FMEX(errorstr);} else this.a = []}"; 
96
97                 string += cl + "._isfieldmapper=true;";
98
99                 for( var pos in _c[cl] ) {
100                         var field = _c[cl][pos];
101                         string += cl + ".prototype." + field + 
102                                 "=function(n){if(arguments.length == 1)this.a[" + 
103                                 pos + "]=n;return this.a[" + pos + "];};";
104                 }
105
106         }
107
108         eval(string);
109
110 JS
111