diff --git a/Persistence/Sources/Persistence/Reader.xcdatamodeld/.xccurrentversion b/Persistence/Sources/Persistence/Reader.xcdatamodeld/.xccurrentversion
index ac6d697..df1af3e 100644
--- a/Persistence/Sources/Persistence/Reader.xcdatamodeld/.xccurrentversion
+++ b/Persistence/Sources/Persistence/Reader.xcdatamodeld/.xccurrentversion
@@ -3,6 +3,6 @@
 <plist version="1.0">
 <dict>
 	<key>_XCCurrentVersionName</key>
-	<string>Reader.xcdatamodel</string>
+	<string>Reader 2.xcdatamodel</string>
 </dict>
 </plist>
diff --git a/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader 2.xcdatamodel/contents b/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader 2.xcdatamodel/contents
new file mode 100644
index 0000000..85b33d3
--- /dev/null
+++ b/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader 2.xcdatamodel/contents	
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21279" systemVersion="22A5331f" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
+    <entity name="Feed" representedClassName="Feed" syncable="YES">
+        <attribute name="id" attributeType="String"/>
+        <attribute name="lastUpdated" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
+        <attribute name="title" attributeType="String"/>
+        <attribute name="url" optional="YES" attributeType="URI"/>
+        <relationship name="groups" toMany="YES" deletionRule="Nullify" destinationEntity="Group" inverseName="feeds" inverseEntity="Group"/>
+        <relationship name="items" toMany="YES" deletionRule="Cascade" destinationEntity="Item" inverseName="feed" inverseEntity="Item"/>
+    </entity>
+    <entity name="Group" representedClassName="Group" syncable="YES">
+        <attribute name="id" attributeType="String"/>
+        <attribute name="title" attributeType="String"/>
+        <relationship name="feeds" toMany="YES" deletionRule="Nullify" destinationEntity="Feed" inverseName="groups" inverseEntity="Feed"/>
+    </entity>
+    <entity name="Item" representedClassName="Item" versionHashModifier="5" syncable="YES">
+        <attribute name="author" optional="YES" attributeType="String"/>
+        <attribute name="content" optional="YES" attributeType="String"/>
+        <attribute name="excerpt" optional="YES" attributeType="String"/>
+        <attribute name="generatedExcerpt" attributeType="Boolean" defaultValueString="NO" usesScalarValueType="YES"/>
+        <attribute name="id" attributeType="String"/>
+        <attribute name="needsReadStateSync" attributeType="Boolean" defaultValueString="NO" usesScalarValueType="YES"/>
+        <attribute name="published" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
+        <attribute name="read" attributeType="Boolean" usesScalarValueType="YES"/>
+        <attribute name="title" optional="YES" attributeType="String"/>
+        <attribute name="url" optional="YES" attributeType="URI"/>
+        <relationship name="feed" maxCount="1" deletionRule="Nullify" destinationEntity="Feed" inverseName="items" inverseEntity="Feed"/>
+        <fetchIndex name="byID">
+            <fetchIndexElement property="id" type="Binary" order="ascending"/>
+        </fetchIndex>
+        <fetchIndex name="byRead">
+            <fetchIndexElement property="read" type="Binary" order="ascending"/>
+        </fetchIndex>
+    </entity>
+    <entity name="SyncState" representedClassName="SyncState" syncable="YES" codeGenerationType="class">
+        <attribute name="lastSync" attributeType="Date" usesScalarValueType="NO"/>
+    </entity>
+    <fetchRequest name="FetchRequest" entity="Item" predicateString="TRUEPREDICATE"/>
+</model>
\ No newline at end of file
diff --git a/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader.xcdatamodel/contents b/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader.xcdatamodel/contents
index 19f6ec5..27a0c3f 100644
--- a/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader.xcdatamodel/contents
+++ b/Persistence/Sources/Persistence/Reader.xcdatamodeld/Reader.xcdatamodel/contents
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21223.11" systemVersion="22A5266r" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21279" systemVersion="22A5331f" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
     <entity name="Feed" representedClassName="Feed" syncable="YES">
         <attribute name="id" attributeType="String"/>
         <attribute name="lastUpdated" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
@@ -30,10 +30,4 @@
         <attribute name="lastSync" attributeType="Date" usesScalarValueType="NO"/>
     </entity>
     <fetchRequest name="FetchRequest" entity="Item" predicateString="TRUEPREDICATE"/>
-    <elements>
-        <element name="Feed" positionX="-54" positionY="9" width="128" height="119"/>
-        <element name="Group" positionX="-63" positionY="-18" width="128" height="74"/>
-        <element name="Item" positionX="-45" positionY="63" width="128" height="194"/>
-        <element name="SyncState" positionX="-63" positionY="90" width="128" height="44"/>
-    </elements>
 </model>
\ No newline at end of file
diff --git a/Reader.xcodeproj/xcshareddata/xcschemes/Reader.xcscheme b/Reader.xcodeproj/xcshareddata/xcschemes/Reader.xcscheme
index 0889378..262264b 100644
--- a/Reader.xcodeproj/xcshareddata/xcschemes/Reader.xcscheme
+++ b/Reader.xcodeproj/xcshareddata/xcschemes/Reader.xcscheme
@@ -75,7 +75,18 @@
             argument = "-com.apple.CoreData.ConcurrencyDebug 1"
             isEnabled = "YES">
          </CommandLineArgument>
+         <CommandLineArgument
+            argument = "-com.apple.CoreData.SQLDebug 1"
+            isEnabled = "YES">
+         </CommandLineArgument>
       </CommandLineArguments>
+      <EnvironmentVariables>
+         <EnvironmentVariable
+            key = "SQLITE_AUTO_TRACE"
+            value = "1"
+            isEnabled = "NO">
+         </EnvironmentVariable>
+      </EnvironmentVariables>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"