fix undefined bug in javascript for wordform-less lexemes

[scpubgit/stemmatology.git] / stemmaweb / root / js / relationship.js

diff --git a/stemmaweb/root/js/relationship.js b/stemmaweb/root/js/relationship.js
index a731474..0c34643 100644 (file)
--- a/stemmaweb/root/js/relationship.js
+++ b/stemmaweb/root/js/relationship.js
@@ -75,13 +75,15 @@ function morphology_form ( lexlist ) {
        $('#morphology').empty();
        $.each( lexlist, function( idx, lex ) {
                var morphoptions = [];
-               $.each( lex['wordform_matchlist'], function( tdx, tag ) {
-                       var tagstr = stringify_wordform( tag );
-                       morphoptions.push( tagstr );
-               });
+               if( 'wordform_matchlist' in lex ) {
+                       $.each( lex['wordform_matchlist'], function( tdx, tag ) {
+                               var tagstr = stringify_wordform( tag );
+                               morphoptions.push( tagstr );
+                       });
+               }
                var formtag = 'morphology_' + idx;
                var formstr = '';
-               if( lex['form'] ) {
+               if( 'form' in lex ) {
                        formstr = stringify_wordform( lex['form'] );
                } 
                var form_morph_elements = morph_elements( 
@@ -93,8 +95,11 @@ function morphology_form ( lexlist ) {
 }
 
 function stringify_wordform ( tag ) {
-       var elements = tag.split(' // ');
-       return elements[1] + ' // ' + elements[2];
+       if( tag ) {
+               var elements = tag.split(' // ');
+               return elements[1] + ' // ' + elements[2];
+       }
+       return ''
 }
 
 function morph_elements ( formtag, formtxt, currform, morphoptions ) {