fixed support of multiple objects for same predicate

Author: elf Pavlik

index.js

@@ -66,7 +66,7 @@ function levelgraphJSONLD(db, jsonldOpts) {
       });
       stream.end();
     });
-  };
+  }
 
   graphdb.jsonld.put = function(obj, options, callback) {
     if (typeof obj === 'string') {
@@ -141,8 +141,11 @@ function levelgraphJSONLD(db, jsonldOpts) {
     switch (type) {
       case TYPES.STRING:
       case TYPES.PLAIN:
+        coerced['@value'] = value;
+        break;
       case RDFLANGSTRING:
         coerced['@value'] = value;
+        coerced['@language'] = N3Util.getLiteralLanguage(object);
         break;
       case TYPES.INTEGER:
         coerced['@value'] = parseInt(value, 10);
@@ -163,7 +166,7 @@ function levelgraphJSONLD(db, jsonldOpts) {
         coerced = { '@value': value, '@type': type };
     }
     return coerced;
-  };
+  }
 
   function fetchExpandedTriples(iri, memo, callback) {
     if (typeof memo === 'function') {
@@ -195,12 +198,12 @@ function levelgraphJSONLD(db, jsonldOpts) {
             object['@id'] = triple.object;
           } else if (N3Util.isLiteral(triple.object)) {
             object = getCoercedObject(triple.object);
-            var language = N3Util.getLiteralLanguage(triple.object);
-            if (language) {
-              object['@language'] = language;
-            }
           }
-          acc[triple.subject][triple.predicate] = object;
+          if(acc[triple.subject][triple.predicate]){
+            acc[triple.subject][triple.predicate].push(object);
+          } else {
+            acc[triple.subject][triple.predicate] = [object];
+          }
           cb(null, acc);
         } else {
           fetchExpandedTriples(triple.object, function(err, expanded) {
@@ -217,7 +220,7 @@ function levelgraphJSONLD(db, jsonldOpts) {
         }
       }, callback);
     });
-  };
+  }
 
   graphdb.jsonld.get = function(iri, context, options, callback) {
 

test/get_spec.js

@@ -64,6 +64,32 @@ describe('jsonld.get', function() {
     });
   });
 
+  it('with an object with multiple objects for same predicate' ,function(done){
+    var bbb = helper.getFixture('bigbuckbunny.json');
+
+    var act1 = {
+          subject: bbb['@id'],
+          predicate: 'http://schema.org/actor',
+          object: 'http://example.net/act1'
+    };
+
+    var act2 = {
+          subject: bbb['@id'],
+          predicate: 'http://schema.org/actor',
+          object: 'http://example.net/act2'
+    };
+
+    db.jsonld.put(bbb, function() {
+      db.put([act1, act2], function() {
+        db.jsonld.get(bbb['@id'], bbb['@context'], function(err, doc) {
+          expect(doc['actor']).to.be.an('array');
+          expect(doc['actor']).to.have.length(2);
+          done();
+        });
+      });
+    });
+  });
+
   describe('with an object with an array for its ["@type"]', function() {
     var ratatat;
 

test/languagetags_spec.js

@@ -70,7 +70,8 @@ describe('jsonld.get language tags', function() {
   });
 
   it('recognizes', function(done) {
-    triple = {
+    delete bbb.name;
+    var triple = {
           subject: bbb['@id'],
           predicate: 'http://schema.org/name',
           object: '"Big Buck Bunny"@en'
@@ -86,4 +87,30 @@ describe('jsonld.get language tags', function() {
       });
     });
   });
+
+  it('supports multiple language objects', function(done) {
+    var en = {
+          subject: bbb['@id'],
+          predicate: 'http://schema.org/description',
+          object: '"Big Buck Bunny"@en'
+    };
+
+    var it = {
+          subject: bbb['@id'],
+          predicate: 'http://schema.org/description',
+          object: '"Grande Coniglio Coniglietto"@it'
+    };
+    bbb['@context'].description = { '@container': '@language' };
+
+    db.jsonld.put(bbb, function() {
+      db.put([en, it], function() {
+        db.jsonld.get(bbb['@id'], bbb['@context'], function(err, doc) {
+          expect(doc.description.en).to.equal('Big Buck Bunny');
+          expect(doc.description.it).to.equal('Grande Coniglio Coniglietto');
+          done();
+        });
+      });
+    });
+  });
+
 });