Fix doubling tables in n-ary relationships with 0,1 / 1,1

diff --git a/parser.js b/parser.js
index da8a1d5..6d028fd 100644 (file)
--- a/parser.js
+++ b/parser.js
@@ -192,9 +192,11 @@ class ErDiags
                // Pass 2: parse associations, add foreign keys when cardinality is 0,1 or 1,1
                this.associations.forEach( a => {
                        let newTableAttrs = [ ];
+                       let hasZeroOne = false;
                        a.entities.forEach( e => {
                                if (['?','1'].includes(e.card[0]))
                                {
+                                       hasZeroOne = true;
                                        // Foreign key apparition (for each entity in association minus current one, for each identifying attribute)
                                        a.entities.forEach( e2 => {
                                                if (e2.name == e.name)
@@ -223,7 +225,7 @@ class ErDiags
                                        });
                                }
                        });
-                       if (newTableAttrs.length > 1)
+                       if (!hasZeroOne && newTableAttrs.length > 1)
                        {
                                // Ok, really create a new table
                                let newTable = {