Python datastore.create函数代码示例

    def __export_pdf_cb(self, event):
        maxx, maxy = self._main_area.get_max_area()
        true_width = int(maxx)
        true_height = int(maxy)

        # Create the new journal entry
        fileObject = datastore.create()
        act_meta = self.metadata
        fileObject.metadata['title'] = act_meta['title'] + ' (PDF)'
        fileObject.metadata['title_set_by_user'] = \
            act_meta['title_set_by_user']
        fileObject.metadata['mime_type'] = 'application/pdf'

        # TODO: add text thoughts into fulltext metadata
        # fileObject.metadata['fulltext'] = ...

        fileObject.metadata['icon-color'] = act_meta['icon-color']
        fileObject.file_path = os.path.join(self.get_activity_root(),
                                            'instance', '%i' % time.time())
        filename = fileObject.file_path
        surface = cairo.PDFSurface(filename, true_width, true_height)
        cairo_context = cairo.Context(surface)
        context = Pango.create_context(cairo_context)
        self._main_area.export(context, true_width, true_height, False)
        surface.finish()
        datastore.write(fileObject, transfer_ownership=True)
        fileObject.destroy()
        del fileObject

 def create_journal_entry(self,  tempfile):
     journal_entry = datastore.create()
     journal_title = self.selected_title
     if self.selected_volume != '':
         journal_title +=  ' ' + _('Volume') + ' ' +  self.selected_volume
     if self.selected_author != '':
         journal_title = journal_title  + ', by ' + self.selected_author
     journal_entry.metadata['title'] = journal_title
     journal_entry.metadata['title_set_by_user'] = '1'
     journal_entry.metadata['keep'] = '0'
     if _NEW_TOOLBAR_SUPPORT:
         format = self.format_combo.props.value
     else:
         format = self._books_toolbar.format_combo.props.value
     if format == '.epub':
         journal_entry.metadata['mime_type'] = 'application/epub+zip'
     if format == '.djvu':
         journal_entry.metadata['mime_type'] = 'image/vnd.djvu'
     if format == '.pdf' or format == '_bw.pdf':
         journal_entry.metadata['mime_type'] = 'application/pdf'
     journal_entry.metadata['buddies'] = ''
     journal_entry.metadata['preview'] = ''
     journal_entry.metadata['icon-color'] = profile.get_color().to_string()
     textbuffer = self.textview.get_buffer()
     journal_entry.metadata['description'] = textbuffer.get_text(textbuffer.get_start_iter(),  textbuffer.get_end_iter(),  True)
     journal_entry.file_path = tempfile
     datastore.write(journal_entry)
     os.remove(tempfile)
     self.progressbar.hide()
     self._alert(_('Success'), self.selected_title + _(' added to Journal.'))

    def __export_png_cb(self, event):
        x, y, w, h, bitdepth = self._main_area.window.get_geometry()
        cmap = self._main_area.window.get_colormap()
        maxx, maxy = self._main_area.get_max_area()
        true_width = int(maxx)
        true_height = int(maxy)

        # Create the new journal entry
        fileObject = datastore.create()
        act_meta = self.metadata
        fileObject.metadata['title'] = act_meta['title'] + ' (PNG)'
        fileObject.metadata['title_set_by_user'] = \
            act_meta['title_set_by_user']
        fileObject.metadata['mime_type'] = 'image/png'

        fileObject.metadata['icon-color'] = act_meta['icon-color']
        fileObject.file_path = os.path.join(self.get_activity_root(),
                                            'instance', '%i' % time.time())
        filename = fileObject.file_path
        #pixmap = gtk.gdk.Pixmap(None, true_width, true_height, bitdepth)
        #pixmap.set_colormap(cmap)
        #self._main_area.export(pixmap.cairo_create(), true_width, true_height,
        #                       False)

        #pb = gtk.gdk.Pixbuf.get_from_drawable(
        #    gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, true_width,
        #                   true_height),
        #    pixmap, gtk.gdk.colormap_get_system(), 0, 0, 0, 0, true_width,
        #    true_height)

        pb.save(filename, 'png')
        datastore.write(fileObject, transfer_ownership=True)
        fileObject.destroy()
        del fileObject

    def save(self):
        """
        Save the current font loaded in globals.FONT as a .ufo.zip file.

        The file will be saved in the activity data folder
        """
        ufo_path = self._create_font_instance()
        title = self.get_title()
        zip_path =\
            os.path.join(self.get_activity_root(),
                         'data', '%s_ufo.zip' % (title))
        if globals.FONT.save_zip(ufo_path, zip_path) is True:
            # create a journal entry
            jobject = datastore.create()

            # FIXME: This method of setting the metadata is not working
            # set the title to the output of self.get_title()
            jobject.metadata['icon-color'] = profile.get_color().to_string()
            jobject.metadata['mime_type'] = 'application/zip'
            jobject.metadata['title'] = title
            jobject.file_path = zip_path
            datastore.write(jobject, transfer_ownership=True)
            self._object_id = jobject.object_id

            # create an alert
            success_title = 'Success'
            success_msg = 'A UFO Font zip file was created in the Journal'
            self._show_journal_alert(_(success_title), _(success_msg))

        else:
            # create an alert
            failure_title = 'Error'
            failure_msg = 'Could not create the Zip file'
            self._show_journal_alert(_(failure_title), _(failure_msg))

    def __export_as_html_cb(self, button):
        jobject = datastore.create()
        jobject.metadata['title'] = \
            _('{} as HTML').format(self.metadata['title'])
        jobject.metadata['mime_type'] = 'text/html'
        preview = self.get_preview()
        if preview is not None:
            jobject.metadata['preview'] = dbus.ByteArray(preview)

        # write out the document contents in the requested format
        path = os.path.join(self.get_activity_root(),
                            'instance', str(time.time()))
        with open(path, 'w') as f:
            f.write('''<html>
                         <head>
                           <title>{title}</title>
                         </head>

                         <body>
                           <h1>{title}</h1>
                    '''.format(title=jobject.metadata['title']))
            for item in self._main_list.all():
                f.write('<p>{}</p>'.format(
                    item[self._main_list.COLUMN_TEXT]))
            f.write('''
                         </body>
                       </html>
                    ''')
        jobject.file_path = path

        datastore.write(jobject, transfer_ownership=True)
        self._journal_alert(jobject.object_id, _('Success'), _('Your'
                            ' Bibliography was saved to the journal as HTML'))
        jobject.destroy()
        del jobject

    def export_font(self):
        """
        Export the current font loaded in globals.FONT as a .otf file.

        The file will be saved in the activity data folder
        """
        # create the file path

        file_path =\
            os.path.join(self.get_activity_root(),
                         'data', '%s.otf' % self.get_title)
        # save the otf
        globals.FONT.export_binary(file_path)

        # create a journal entry
        jobject = datastore.create()
        jobject.metadata['icon-color'] = profile.get_color().to_string()
        jobject.metadata['mime_type'] = 'application/x-font-opentype'
        jobject.metadata['title'] = '%s.otf' % self.get_title
        jobject.file_path = file_path
        datastore.write(jobject, transfer_ownership=True)
        self._object_id = jobject.object_id

        success_title = 'Success'
        success_msg = 'A OTF Font file was created in the Journal'
        self._show_journal_alert(_(success_title), _(success_msg))

    def _install_update(self, bundle_update, local_file_path):

        total = self._total_bundles_to_update
        current = total - len(self._bundles_to_update) - 0.5

        self.emit('progress', UpdateModel.ACTION_UPDATING,
                  bundle_update.bundle.get_name(),
                  current, total)

        # TODO: Should we first expand the zip async so we can provide progress
        # and only then copy to the journal?
        jobject = datastore.create()
        try:
            title = '%s-%s' % (bundle_update.bundle.get_name(),
                               bundle_update.version)
            jobject.metadata['title'] = title
            jobject.metadata['mime_type'] = ActivityBundle.MIME_TYPE
            jobject.file_path = local_file_path
            datastore.write(jobject, transfer_ownership=True)
        finally:
            jobject.destroy()

        self.emit('progress', UpdateModel.ACTION_UPDATING,
                  bundle_update.bundle.get_name(),
                  current + 0.5, total)

        if self._bundles_to_update:
            # do it in idle so the UI has a chance to refresh
            GLib.idle_add(self._download_next_update)

def generate_bundle(nick, new_basename):
    """Generate a new .xo bundle for the activity and copy it into the
    Journal.

    """
    new_activity_name = _customize_activity_info(
        nick, new_basename)

    user_activities_path = get_user_activities_path()
    if os.path.exists(os.path.join(user_activities_path, new_basename,
                                   'dist')):
        for path in glob.glob(os.path.join(user_activities_path, new_basename,
                                           'dist', '*')):
            os.remove(path)

    config = bundlebuilder.Config(source_dir=os.path.join(
        user_activities_path, new_basename),
        dist_name='%s-1.xo' % (new_activity_name))
    bundlebuilder.cmd_dist_xo(config, None)

    dsobject = datastore.create()
    dsobject.metadata['title'] = '%s-1.xo' % (new_activity_name)
    dsobject.metadata['mime_type'] = 'application/vnd.olpc-sugar'
    dsobject.set_file_path(os.path.join(
        user_activities_path, new_basename, 'dist',
        '%s-1.xo' % (new_activity_name)))
    datastore.write(dsobject)
    dsobject.destroy()

    def do_drag_data_get(self, path, selection):
        data = self.get_iter(path)
        mime_type = self.get_value(data, 13)
        fileid = self.get_value(data, 14)
        title = self.get_value(data, 15)
        data = self._account.download_file(fileid, self._display_alert)

        fd, file_path = tempfile.mkstemp(dir="/tmp/")
        os.close(fd)

        if data[0]:
            f = open(file_path, 'w')
            f.write(data[0])
            f.close()

        jobject = datastore.create()
        jobject.metadata['title'] = title
        jobject.metadata['icon-color'] = profile.get_color().to_string()
        jobject.metadata['mime_type'] = mime_type
        if data[1]:
            jobject.metadata['activity'] = data[1]

        if data[0]:
            jobject.file_path = file_path
        datastore.write(jobject)
        self._load_files()
        self._journal_button.set_active(True)
        self._listview.refresh()

    def __init__(self, file_transfer):
        BaseTransferButton.__init__(self, file_transfer)

        self._ds_object = datastore.create()

        file_transfer.connect('notify::state', self.__notify_state_cb)
        file_transfer.connect('notify::transferred-bytes',
                              self.__notify_transferred_bytes_cb)

        icons = Gio.content_type_get_icon(file_transfer.mime_type).props.names
        icons.append('application-octet-stream')
        for icon_name in icons:
            icon_name = 'transfer-from-%s' % icon_name
            file_name = get_icon_file_name(icon_name)
            if file_name is not None:
                self.props.icon_widget.props.icon_name = icon_name
                self.notif_icon.props.icon_name = icon_name
                break

        icon_color = file_transfer.buddy.props.color
        self.props.icon_widget.props.xo_color = icon_color
        self.notif_icon.props.xo_color = icon_color

        frame = jarabe.frame.get_view()
        frame.add_notification(self.notif_icon,
                               Gtk.CornerType.TOP_LEFT)

def initialize_journal_object(title=None, bundle_id=None,
                              activity_id=None, project_metadata=None,
                              icon_color=None, invited=False):

    if not icon_color:
        settings = Gio.Settings('org.sugarlabs.user')
        icon_color = settings.get_string('color')

    if not activity_id:
        activity_id = activityfactory.create_activity_id()

    jobject = datastore.create()
    jobject.metadata['title'] = title
    jobject.metadata['title_set_by_user'] = '0'
    jobject.metadata['activity_id'] = activity_id
    jobject.metadata['keep'] = '0'
    jobject.metadata['preview'] = ''
    jobject.metadata['icon-color'] = icon_color
    jobject.file_path = ''

    if bundle_id == PROJECT_BUNDLE_ID:
        jobject.metadata['activity'] = PROJECT_BUNDLE_ID

    elif project_metadata is not None:
        jobject.metadata['mountpoints'] = ['/']
        jobject.metadata['activity'] = bundle_id
        jobject.metadata['share-scope'] = SCOPE_PRIVATE
        jobject.metadata['launch-times'] = str(int(time.time()))
        jobject.metadata['spent-times'] = '0'
        jobject.metadata['project_id'] = project_metadata['uid']
    # FIXME: We should be able to get an ID synchronously from the DS,
    # then call async the actual create.
    # http://bugs.sugarlabs.org/ticket/2169
    datastore.write(jobject)
    return jobject

 def create_journal_entry(self,  widget,  data=None):
     filename = self._filechooser.get_filename()
     journal_entry = datastore.create()
     journal_entry.metadata['title'] = self.make_new_filename(filename)
     journal_entry.metadata['title_set_by_user'] = '1'
     journal_entry.metadata['keep'] = '0'
     file_mimetype = mime.get_for_file(filename)
     if not file_mimetype is None:
         journal_entry.metadata['mime_type'] = file_mimetype
     journal_entry.metadata['buddies'] = ''
     if file_mimetype.startswith('image/')  and file_mimetype != 'image/vnd.djvu':
         preview = self.create_preview_metadata(filename)
     elif file_mimetype  == 'application/x-cbz':
         fname = self.extract_image(filename)
         preview = self.create_preview_metadata(fname)
         os.remove(fname)
     else:
         preview = ''
     if not preview  == '':
         journal_entry.metadata['preview'] =  dbus.ByteArray(preview)
     else:
         journal_entry.metadata['preview'] =  ''
         
     journal_entry.file_path = filename
     datastore.write(journal_entry)
     self.update_log_entries += '\n' + _('File %s copied to the Journal.') % filename
     self.alert(_('Success'),  _('%s added to Journal.') 
                 % self.make_new_filename(filename))

    def _file_part_receiver(self, target, filename, part, numparts,
                            bytes, title=None, color=None, sender=None):
        # ignore my own signal
        if sender == self._tube.get_unique_name():
            return

        if target != self._tube.get_unique_name() and target != 'all':
            return

        # first chunk
        if part == 1:
            tmp_root = join(environ['SUGAR_ACTIVITY_ROOT'], 'instance')
            temp_dir = tempfile.mkdtemp(dir=tmp_root)
            chmod(temp_dir, 0777)
            self.temp_file = join(temp_dir, 'game.zip')
            self.files[filename] = self.temp_file
            self.f = open(self.temp_file, 'a+b')

        self.f.write(bytes)

        percentage = int(float(part) / float(numparts) * 100.0)
        self.game.set_load_mode(_('Receiving game') + ': '
                                + str(percentage) + '% ' + _('done') + '.')

        # last chunk
        if part == numparts:
            self.f.close()
            # file = self.files[filename]
            # Saves the zip in datastore
            gameObject = datastore.create()
            gameObject.metadata['title'] = title
            gameObject.metadata['mime_type'] = 'application/x-memorize-project'
            gameObject.metadata['icon-color'] = color
            gameObject.file_path = self.temp_file
            datastore.write(gameObject)

    def take_screenshot(self, capture_count=1):
        ''' Take a screenshot and save to the Journal '''
        tmp_file_path = os.path.join(
            os.environ['SUGAR_ACTIVITY_ROOT'], 'instance',
            'screen_capture_' + str(capture_count) + '.png')

        window = self.activity.wave.get_window()
        width, height = window.get_width(), window.get_height()
        surface = Gdk.Window.create_similar_surface(window,
                                                    cairo.CONTENT_COLOR,
                                                    width, height)
        cr = cairo.Context(surface)
        Gdk.cairo_set_source_window(cr, window, 0, 0)
        cr.paint()
        surface.write_to_png(tmp_file_path)

        if os.path.exists(tmp_file_path):
            dsobject = datastore.create()
            try:
                dsobject.metadata['title'] = '%s %d' % (_('Waveform'),
                                                        capture_count)
                dsobject.metadata['keep'] = '0'
                dsobject.metadata['buddies'] = ''
                dsobject.metadata['preview'] = self._get_preview_data(surface)
                dsobject.metadata['icon-color'] = self.activity.icon_colors
                dsobject.metadata['mime_type'] = 'image/png'
                dsobject.set_file_path(tmp_file_path)
                datastore.write(dsobject)
            finally:
                dsobject.destroy()
                del dsobject
            os.remove(tmp_file_path)
            return True
        return False

    def __export_as_abiword_cb(self, button):
        jobject = datastore.create()
        jobject.metadata['title'] = \
            _('{} as Write document').format(self.metadata['title'])
        jobject.metadata['mime_type'] = 'application/x-abiword'
        preview = self.get_preview()
        if preview is not None:
            jobject.metadata['preview'] = dbus.ByteArray(preview)

        path = os.path.join(self.get_activity_root(),
                            'instance', str(time.time()))
        with open(path, 'w') as f:
            f.write('<?xml version="1.0" encoding="UTF-8"?>\n<abiword>\n'
                    '<section>')
            entries = []
            for item in self._main_list.all():
                markup = item[self._main_list.COLUMN_TEXT]
                abiword = '<p><c>{}</c></p>'.format(markup) \
                    .replace('<b>', '<c props="font-weight:bold">') \
                    .replace('<i>', '<c props="font-style:italic;'
                             ' font-weight:normal">') \
                    .replace('</b>', '</c>').replace('</i>', '</c>')
                entries.append(abiword)
            f.write('\n<p><c></c></p>\n'.join(entries))
            f.write('</section>\n</abiword>')
        jobject.file_path = path

        datastore.write(jobject, transfer_ownership=True)
        self._journal_alert(jobject.object_id, _('Success'), _('Your'
                            ' Bibliography was saved to the journal as a Write'
                            ' document'))
        jobject.destroy()
        del jobject