Add compact database button to config dialog

src/libprs500/gui2/__init__.py

@@ -53,6 +53,12 @@ def question_dialog(parent, title, msg):
     d.setIconPixmap(QPixmap(':/images/dialog_information.svg'))
     return d
 
+def info_dialog(parent, title, msg):
+    d = QMessageBox(QMessageBox.Information, title, msg, QMessageBox.NoButton,
+                    parent)
+    d.setIconPixmap(QPixmap(':/images/dialog_information.svg'))
+    return d
+
 def qstring_to_unicode(q):
     return unicode(q)
 

src/libprs500/gui2/dialogs/config.py

@@ -14,8 +14,8 @@
 ##    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 import os
 
-from PyQt4.QtGui import QDialog
-from PyQt4.QtCore import QSettings, QVariant, SIGNAL, QStringList
+from PyQt4.QtGui import QDialog, QMessageBox
+from PyQt4.QtCore import QSettings, QVariant, SIGNAL, QStringList, QTimer
 
 from libprs500 import islinux
 from libprs500.gui2.dialogs.config_ui import Ui_Dialog
@@ -23,11 +23,12 @@ from libprs500.gui2 import qstring_to_unicode, choose_dir, error_dialog
 
 class ConfigDialog(QDialog, Ui_Dialog):
     
-    def __init__(self, window):
+    def __init__(self, window, db):
         QDialog.__init__(self, window)
         Ui_Dialog.__init__(self)
         self.setupUi(self)
         
+        self.db = db
         settings = QSettings()
         path = qstring_to_unicode(\
         settings.value("database path", 
@@ -35,6 +36,7 @@ class ConfigDialog(QDialog, Ui_Dialog):
         
         self.location.setText(os.path.dirname(path))
         self.connect(self.browse_button, SIGNAL('clicked(bool)'), self.browse)
+        self.connect(self.compact_button, SIGNAL('clicked(bool)'), self.compact)
         
         dirs = settings.value('frequently used directories', QVariant(QStringList())).toStringList()
         rn = bool(settings.value('use roman numerals for series number',
@@ -51,6 +53,10 @@ class ConfigDialog(QDialog, Ui_Dialog):
         if not islinux:
             self.dirs_box.setVisible(False)
         
+    def compact(self, toggled):
+        d = Vacuum(self, self.db)
+        d.exec_()
+    
     def browse(self):
         dir = choose_dir(self, 'database location dialog', 'Select database location')
         if dir:
@@ -82,3 +88,16 @@ class ConfigDialog(QDialog, Ui_Dialog):
             self.directories = [qstring_to_unicode(self.directory_list.item(i).text()) for i in range(self.directory_list.count())]
             settings.setValue('frequently used directories', QVariant(self.directories))
             QDialog.accept(self)
+
+class Vacuum(QMessageBox):
+    
+    def __init__(self, parent, db):
+        self.db = db
+        QMessageBox.__init__(self, QMessageBox.Information, 'Compacting...', 'Compacting database. This may take a while.', 
+                             QMessageBox.NoButton, parent)
+        QTimer.singleShot(200, self.vacuum)
+        
+    def vacuum(self):
+        self.db.vacuum()
+        self.accept()
+    

src/libprs500/gui2/dialogs/config.ui

@@ -19,8 +19,8 @@
    <item>
     <widget class="QStackedWidget" name="stackedWidget" >
      <widget class="QWidget" name="page" >
-      <layout class="QVBoxLayout" >
-       <item>
+      <layout class="QGridLayout" >
+       <item row="0" column="0" >
         <layout class="QVBoxLayout" >
          <item>
           <widget class="QLabel" name="label" >
@@ -54,7 +54,7 @@
          </item>
         </layout>
        </item>
-       <item>
+       <item row="1" column="0" >
         <widget class="QCheckBox" name="roman_numerals" >
          <property name="text" >
           <string>Use &amp;Roman numerals for series number</string>
@@ -64,7 +64,7 @@
          </property>
         </widget>
        </item>
-       <item>
+       <item row="2" column="0" >
         <layout class="QHBoxLayout" >
          <item>
           <widget class="QLabel" name="label_2" >
@@ -97,13 +97,16 @@
          </item>
         </layout>
        </item>
-       <item>
+       <item row="3" column="0" >
         <layout class="QHBoxLayout" >
          <item>
           <widget class="QLabel" name="label_3" >
            <property name="text" >
             <string>&amp;Priority for conversion jobs:</string>
            </property>
+           <property name="buddy" >
+            <cstring>priority</cstring>
+           </property>
           </widget>
          </item>
          <item>
@@ -111,7 +114,47 @@
          </item>
         </layout>
        </item>
+       <item row="4" column="0" >
+        <layout class="QHBoxLayout" >
          <item>
+          <spacer>
+           <property name="orientation" >
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" >
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <widget class="QToolButton" name="compact_button" >
+           <property name="toolTip" >
+            <string>Free unused diskspace from the database</string>
+           </property>
+           <property name="text" >
+            <string>&amp;Compact database</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer>
+           <property name="orientation" >
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" >
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item row="5" column="0" >
         <widget class="QGroupBox" name="dirs_box" >
          <property name="title" >
           <string>Frequently used directories</string>
@@ -206,7 +249,7 @@
          </layout>
         </widget>
        </item>
-       <item>
+       <item row="6" column="0" >
         <spacer>
          <property name="orientation" >
           <enum>Qt::Vertical</enum>

src/libprs500/gui2/main.py

@@ -676,7 +676,7 @@ class Main(MainWindow, Ui_MainWindow):
             d = error_dialog(self, _('Cannot configure'), _('Cannot configure while there are running jobs.'))
             d.exec_()
             return
-        d = ConfigDialog(self)
+        d = ConfigDialog(self, self.library_view.model().db)
         d.exec_()
         if d.result() == d.Accepted:
             if os.path.dirname(self.database_path) != d.database_location:

src/libprs500/library/database.py

@@ -1277,6 +1277,10 @@ ALTER TABLE books ADD COLUMN isbn TEXT DEFAULT "" COLLATE NOCASE;
         mi.libprs_id = id
         return mi
     
+    def vacuum(self):
+        self.conn.execute('VACUUM;')
+        self.conn.commit()
+    
     def export_to_dir(self, dir, indices, byauthor=False):
         if not os.path.exists(dir):
             raise IOError('Target directory does not exist: '+dir)
@@ -1329,6 +1333,8 @@ ALTER TABLE books ADD COLUMN isbn TEXT DEFAULT "" COLLATE NOCASE;
                     f.close()
                     
         
+                
+
 class SearchToken(object):
     
     FIELD_MAP = { 'title'       : 1,