templates_dialog.py

   1 # BiaWeb Website content manager (c) 2010 V.Harishankar
   2 # Templates dialog class
   3
   4 import PyQt4
   5 import ui_templates_dialog
   6 import editor_dialog
   7 import biaweb_db
   8
   9 class TemplatesDialog (PyQt4.QtGui.QDialog, ui_templates_dialog.Ui_TemplatesDialog):
  10         def __init__ (self, master, currentdb):
  11                 PyQt4.QtGui.QDialog.__init__ (self, master)
  12                 self.setupUi (self)
  13
  14                 # set the current database
  15                 self.current_db = currentdb
  16
  17                 # populate the templates
  18                 tpls = biaweb_db.get_templates (self.current_db)
  19                 # if templates populated
  20                 if tpls:
  21                         for tpl_name, tpl_content in tpls:
  22                                 self.templates.addItem (str (tpl_name))
  23                 else:
  24                         PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in retrieving templates")
  25
  26         def onEdit (self):
  27                 # get the currently selected list item
  28                 sel_item = self.templates.currentItem ()
  29                 # if no item is selected return
  30                 if sel_item is None:
  31                         return
  32                 tpl_name = str (sel_item.data (0).toString ())
  33
  34                 # get the template content from the database
  35                 tpl_str = biaweb_db.get_template_text (self.current_db, tpl_name)
  36
  37                 # if template string cannot be obtained for some reason
  38                 if tpl_str is False:
  39                         PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in retrieving template")
  40                 else:
  41                         # open edit dialog with title "template name" and text as the template string
  42                         edlg = editor_dialog.EditorDialog (self, tpl_name, tpl_str)
  43                         # if editing is confirmed
  44                         if edlg.exec_ () == PyQt4.QtGui.QDialog.Accepted:
  45                                 upd_tpl_str = str (edlg.text.toPlainText ()).strip ()
  46
  47                                 # update the template with the new template string
  48                                 ret = biaweb_db.update_template (self.current_db, tpl_name, upd_tpl_str)
  49                                 # if update failed
  50                                 if ret is False:
  51                                         PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in updating template")
  52