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# Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 of the
# License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA
import functools
from fnmatch import fnmatch
import mforms
class DatabaseObjectSelector(mforms.Box):
'''Enables the selection and filtering of database objects'''
def __init__(self, types_to_display, database_objects, ui_settings={}):
super(DatabaseObjectSelector, self).__init__(False)
self.database_objects = database_objects
self.supported_object_types = types_to_display
self.ui_settings = {
'tables' : { 'icon': 'db.Table.many.32x32.png',
'small_icon': 'db.Table.16x16.png',
'group_label': 'Migrate Table objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'views' : { 'icon': 'db.View.many.32x32.png',
'small_icon': 'db.View.16x16.png',
'group_label': 'Migrate View objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'routines':{ 'icon': 'db.Routine.many.32x32.png',
'small_icon': 'db.Routine.16x16.png',
'group_label': 'Migrate Routine objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'routineGroups':{ 'icon': 'db.RoutineGroup.48x48.png',
'small_icon': 'db.RoutineGroup.16x16.png',
'group_label': 'Migrate Routine Group/Package objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'synonyms':{ 'icon': 'grt_object.png',
'small_icon': 'grt_object.png',
'group_label': 'Migrate Synonym objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'structuredTypes':{ 'icon': 'grt_object.png',
'small_icon': 'grt_object.png',
'group_label': 'Migrate Structured Type objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
'sequences':{ 'icon': 'grt_object.png',
'small_icon': 'grt_object.png',
'group_label': 'Migrate Sequence objects',
'group_selected': True,
'status_text': '%(total)d total, %(selected)d selected',
'show_details': False,
},
}
# Update the ui settings dict with the custom settings supplied by the user (if any):
if isinstance(ui_settings, dict):
for key, value in ui_settings.iteritems():
if key not in self.ui_settings or not isinstance(value, dict):
continue
self.ui_settings[key].update(value)
# Create UI:
self.set_padding(8)
self.set_spacing(8)
self.ui = {}
for group in self.supported_object_types:
if group not in self.database_objects or group not in self.ui_settings:
continue
self.ui[group] = {}
group_objects = self.database_objects[group]
group_panel = mforms.newPanel(mforms.BorderedPanel)
group_box = mforms.newBox(False)
group_box.set_padding(8)
group_box.set_spacing(8)
header_box = mforms.Box(True)
header_box.set_spacing(8)
icon = mforms.newImageBox()
icon.set_image(self.ui_settings[group]['icon'])
header_box.add(icon, False)
text_box = mforms.Box(False)
group_selector = mforms.newCheckBox()
group_selector.set_text(self.ui_settings[group]['group_label'])
group_selector.set_active(bool(self.ui_settings[group]['group_selected']))
group_selector.add_clicked_callback(functools.partial(self.group_checkbox_clicked, group=group))
text_box.add(group_selector, False)
info_label = mforms.newLabel(self.ui_settings[group]['status_text'] % {'total': len(group_objects),
'selected': len(group_objects) if self.ui_settings[group]['group_selected'] else 0 })
info_label.set_style(mforms.SmallHelpTextStyle)
text_box.add(info_label, False)
header_box.add(text_box, False)
show_details = self.ui_settings[group]['show_details']
self.ui_settings[group]['_showing_details'] = show_details
filter_button = mforms.newButton()
filter_button.set_text('Hide Selection' if show_details else 'Show Selection')
filter_button.set_enabled(bool(self.ui_settings[group]['group_selected']))
filter_button.add_clicked_callback(functools.partial(self.filter_button_clicked, group=group))
header_box.add_end(filter_button, False, True)
group_box.add(header_box, False)
# The invisible stuff:
if len(group_objects) > 0:
box = mforms.newBox(True)
search_entry = mforms.newTextEntry(mforms.SearchEntry)
search_entry.set_placeholder_text("Filter objects (wildcards chars * and ? are allowed)")
search_entry.add_changed_callback(functools.partial(self.search_entry_changed, group=group))
box.add(search_entry, False, True)
group_box.add(box, False, True)
search_entry.set_size(350, -1)
filter_container = mforms.newBox(True)
filter_container.set_spacing(8)
available_list = mforms.newTreeNodeView(mforms.TreeFlatList)
available_list.add_column(mforms.IconColumnType, 'Available Objects', 300, False)
available_list.end_columns()
available_list.set_selection_mode(mforms.TreeSelectMultiple)
available_list.set_allow_sorting(False)
filter_container.add(available_list, True, True)
control_box = mforms.newBox(False)
control_box.set_padding(0, 30, 0, 30)
control_box.set_spacing(4)
add_button = mforms.newButton()
add_button.set_text('>')
add_button.enable_internal_padding(False)
add_button.add_clicked_callback(functools.partial(self.move_button_clicked, group=group, operation='add'))
control_box.add(add_button, False)
remove_button = mforms.newButton()
remove_button.set_text('<')
remove_button.enable_internal_padding(False)
remove_button.add_clicked_callback(functools.partial(self.move_button_clicked, group=group, operation='remove'))
control_box.add(remove_button, False)
add_all_button = mforms.newButton()
add_all_button.set_text('>>')
add_all_button.enable_internal_padding(False)
add_all_button.add_clicked_callback(functools.partial(self.move_button_clicked, group=group, operation='add_all'))
control_box.add(add_all_button, False)
remove_all_button = mforms.newButton()
remove_all_button.set_text('<<')
remove_all_button.enable_internal_padding(False)
remove_all_button.add_clicked_callback(functools.partial(self.move_button_clicked, group=group, operation='remove_all'))
control_box.add(remove_all_button, False)
filter_container.add(control_box, False, False)
selected_list = mforms.newTreeNodeView(mforms.TreeFlatList)
selected_list.add_column(mforms.IconColumnType, 'Objects to Migrate', 300, False)
selected_list.end_columns()
selected_list.set_selection_mode(mforms.TreeSelectMultiple)
selected_list.set_allow_sorting(False)
for item in sorted(group_objects):
node = selected_list.add_node()
node.set_icon_path(0, self.ui_settings[group]['small_icon'])
node.set_string(0, item)
filter_container.add(selected_list, True, True)
group_box.add(filter_container, True, True)
filter_container.show(bool(show_details))
self.ui[group].update( {
'filter_container': filter_container,
'available_list': available_list,
'selected_list': selected_list,
'search_entry': search_entry,
} )
else: # Empty object list
filter_button.set_enabled(False)
self.ui[group].update ( {
'icon': icon,
'group_selector': group_selector,
'group_panel': group_panel,
'info_label': info_label,
'filter_button': filter_button,
'all_objects': set(group_objects),
'has_elements': bool(len(group_objects)),
'available': set(),
'selected': set(group_objects),
'objects_passing_filter': set(group_objects),
} )
group_panel.add(group_box)
self.add(group_panel, False, True)
def _show_selection(self, group, show_details):
'''Shows/hides the details of the selections for the group'''
if 'filter_container' in self.ui[group]: # The group is not empty
self.ui[group]['filter_container'].show(bool(show_details))
self.ui[group]['filter_button'].set_text('Hide Selection' if show_details else 'Show Selection')
self.ui_settings[group]['_showing_details'] = show_details
self.relayout()
def filter_button_clicked(self, group):
self._show_selection(group, not self.ui_settings[group]['_showing_details'])
def search_entry_changed(self, group):
search_entry = self.ui[group]['search_entry']
search_pattern = search_entry.get_string_value()
available_list = self.ui[group]['available_list']
selected_list = self.ui[group]['selected_list']
all_objects = self.ui[group]['all_objects']
available = self.ui[group]['available']
selected = self.ui[group]['selected']
objects_passing_filter = set(object_name for object_name in all_objects if fnmatch(object_name, search_pattern)) if search_pattern else all_objects
self.ui[group]['objects_passing_filter'] = objects_passing_filter
selected_list.clear()
selected_list.freeze_refresh()
for item in sorted(list(selected & objects_passing_filter)):
node = selected_list.add_node()
node.set_icon_path(0, self.ui_settings[group]['small_icon'])
node.set_string(0, item)
selected_list.thaw_refresh()
available_list.clear()
available_list.freeze_refresh()
for item in sorted(list(available & objects_passing_filter)):
node = available_list.add_node()
node.set_icon_path(0, self.ui_settings[group]['small_icon'])
node.set_string(0, item)
available_list.thaw_refresh()
def group_checkbox_clicked(self, group):
is_active = bool(self.ui[group]['group_selector'].get_active())
has_elements = bool(self.ui[group]['has_elements'])
should_expand = is_active and self.ui_settings[group]['show_details']
self._show_selection(group, should_expand)
self.ui[group]['filter_button'].set_enabled(is_active and has_elements)
self.ui[group]['info_label'].set_text(self.ui_settings[group]['status_text'] % {'total': len(self.ui[group]['all_objects']),
'selected': len(self.ui[group]['selected']) if is_active else 0 })
def move_button_clicked(self, group, operation):
available_list = self.ui[group]['available_list']
selected_list = self.ui[group]['selected_list']
all_objects = self.ui[group]['all_objects']
available = self.ui[group]['available']
selected = self.ui[group]['selected']
objects_passing_filter = self.ui[group]['objects_passing_filter']
if operation == 'add':
involved = set(node.get_string(0) for node in available_list.get_selection() )
selected |= involved
available -= involved
elif operation == 'remove':
involved = set(node.get_string(0) for node in selected_list.get_selection() )
available |= involved
selected -= involved
elif operation == 'add_all':
selected |= (available & objects_passing_filter)
available -= objects_passing_filter
elif operation == 'remove_all':
available |= (selected & objects_passing_filter)
selected -= objects_passing_filter
selected_list.clear()
selected_list.freeze_refresh()
for item in sorted(list(selected & objects_passing_filter)):
node = selected_list.add_node()
node.set_icon_path(0, self.ui_settings[group]['small_icon'])
node.set_string(0, item)
selected_list.thaw_refresh()
available_list.clear()
available_list.freeze_refresh()
for item in sorted(list(available & objects_passing_filter)):
node = available_list.add_node()
node.set_icon_path(0, self.ui_settings[group]['small_icon'])
node.set_string(0, item)
available_list.thaw_refresh()
self.ui[group]['info_label'].set_text(self.ui_settings[group]['status_text'] % {'total': len(all_objects),
'selected': len(selected) })
def _get_objects(self, list_type):
relevant_objects = {}
for group in self.supported_object_types:
if group not in self.database_objects or group not in self.ui_settings:
continue
if self.ui[group]['group_selector'].get_active(): # the group checkbox is checked
relevant_objects[group] = list(self.ui[group][list_type])
else:
relevant_objects[group] = list(self.ui[group]['all_objects']) if list_type == 'available' else []
return relevant_objects
def get_ignored_objects(self):
return self._get_objects('available')
def get_selected_objects(self):
return self._get_objects('selected')
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