diff --git a/Barcode_Reader_Python/.idea/workspace.xml b/Barcode_Reader_Python/.idea/workspace.xml
index ca6178c..9df7d48 100644
--- a/Barcode_Reader_Python/.idea/workspace.xml
+++ b/Barcode_Reader_Python/.idea/workspace.xml
@@ -3,7 +3,6 @@
   <component name="ChangeListManager">
     <list default="true" id="7b5ef56c-2d3e-44d9-be69-b414f166f99b" name="Default" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/database_append.py" beforeDir="false" afterPath="$PROJECT_DIR$/database_append.py" afterDir="false" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="TRACKING_ENABLED" value="true" />
@@ -25,11 +24,11 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file leaf-file-name="main.py" pinned="false" current-in-tab="false">
+      <file leaf-file-name="main.py" pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/main.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="538">
-              <caret line="88" column="1" selection-start-line="88" selection-start-column="1" selection-end-line="88" selection-end-column="1" />
+            <state relative-caret-position="445">
+              <caret line="87" column="44" selection-start-line="87" selection-start-column="44" selection-end-line="87" selection-end-column="44" />
               <folding>
                 <element signature="e#0#37#0" expanded="true" />
               </folding>
@@ -37,8 +36,8 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="database_actions.py" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/database_actions.py">
+      <file leaf-file-name="database_read.py" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/database_read.py">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="450">
               <caret line="25" selection-start-line="25" selection-end-line="25" selection-end-column="49" />
@@ -46,11 +45,20 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="database_append.py" pinned="false" current-in-tab="true">
+      <file leaf-file-name="generate_moves.py" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/generate_moves.py">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="1875">
+              <caret line="125" column="20" selection-start-line="125" selection-start-column="20" selection-end-line="125" selection-end-column="20" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="database_append.py" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/database_append.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="340">
-              <caret line="20" column="1" lean-forward="true" selection-start-line="20" selection-start-column="1" selection-end-line="20" selection-end-column="1" />
+            <state relative-caret-position="238">
+              <caret line="14" lean-forward="true" selection-start-line="14" selection-end-line="14" />
             </state>
           </provider>
         </entry>
@@ -80,6 +88,7 @@
       <find>dates_orig</find>
       <find>dates</find>
       <find>shelf_new</find>
+      <find>database_</find>
     </findStrings>
   </component>
   <component name="Git.Settings">
@@ -331,7 +340,14 @@
       <option name="project" value="LOCAL" />
       <updated>1529689633554</updated>
     </task>
-    <option name="localTasksCounter" value="2" />
+    <task id="LOCAL-00002" summary="refactored,improved design">
+      <created>1529690495712</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1529690495712</updated>
+    </task>
+    <option name="localTasksCounter" value="3" />
     <servers />
   </component>
   <component name="ToolWindowManager">
@@ -392,7 +408,9 @@
   </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="completed the algorithm" />
-    <option name="LAST_COMMIT_MESSAGE" value="completed the algorithm" />
+    <MESSAGE value="refactored,improved design" />
+    <option name="LAST_COMMIT_MESSAGE" value="refactored,improved design" />
+    <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
@@ -427,7 +445,7 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/database_actions.py">
+    <entry file="file://$PROJECT_DIR$/database_read.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="120">
           <caret line="8" selection-start-line="8" selection-end-line="8" />
@@ -458,41 +476,41 @@
     <entry file="file://$PROJECT_DIR$/move.py">
       <provider selected="true" editor-type-id="text-editor" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/generate_moves.py">
+    <entry file="file://$PROJECT_DIR$/database_read.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="483">
-          <caret line="125" column="20" selection-start-line="125" selection-start-column="20" selection-end-line="125" selection-end-column="20" />
+        <state relative-caret-position="450">
+          <caret line="25" selection-start-line="25" selection-end-line="25" selection-end-column="49" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/main.py">
+    <entry file="file://$APPLICATION_HOME_DIR$/helpers/pydev/pydevd.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="538">
-          <caret line="88" column="1" selection-start-line="88" selection-start-column="1" selection-end-line="88" selection-end-column="1" />
-          <folding>
-            <element signature="e#0#37#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="169">
+          <caret line="1067" selection-start-line="1067" selection-end-line="1067" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/database_actions.py">
+    <entry file="file://$PROJECT_DIR$/database_append.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="450">
-          <caret line="25" selection-start-line="25" selection-end-line="25" selection-end-column="49" />
+        <state relative-caret-position="238">
+          <caret line="14" lean-forward="true" selection-start-line="14" selection-end-line="14" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$APPLICATION_HOME_DIR$/helpers/pydev/pydevd.py">
+    <entry file="file://$PROJECT_DIR$/generate_moves.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="169">
-          <caret line="1067" selection-start-line="1067" selection-end-line="1067" />
+        <state relative-caret-position="1875">
+          <caret line="125" column="20" selection-start-line="125" selection-start-column="20" selection-end-line="125" selection-end-column="20" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/database_append.py">
+    <entry file="file://$PROJECT_DIR$/main.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="340">
-          <caret line="20" column="1" lean-forward="true" selection-start-line="20" selection-start-column="1" selection-end-line="20" selection-end-column="1" />
+        <state relative-caret-position="445">
+          <caret line="87" column="44" selection-start-line="87" selection-start-column="44" selection-end-line="87" selection-end-column="44" />
+          <folding>
+            <element signature="e#0#37#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
diff --git a/Barcode_Reader_Python/database_actions.pyc b/Barcode_Reader_Python/database_actions.pyc
deleted file mode 100644
index 3351c9d..0000000
Binary files a/Barcode_Reader_Python/database_actions.pyc and /dev/null differ