def move_node(self,
src_filepath,
childpath,
parent_index,
overwrite=False):
"""Move a `tables.Node` to a different location.
:Parameters:
- `src_filepath`: the full path of the source database
- `childpath`: the full path of the node being moved
- `parent_index`: the model index of the new parent group
- `overwrite`: True if a node is being overwritten
"""
try:
QtWidgets.qApp.setOverrideCursor(QtCore.Qt.WaitCursor)
parent_node = self.nodeFromIndex(parent_index)
# full path of the destination database and new parent
dst_filepath = parent_node.filepath
parentpath = parent_node.nodepath
#
# Check if the nodename is already in use
#
(nodename,
overwrite) = self.validateNodename(src_filepath, childpath,
dst_filepath, parentpath)
if nodename is None:
return nodename
# If the overwritten node (if any) exists in the tree of
# databases view then delete it
if overwrite:
self.overwriteNode(parent_node, parent_index, nodename)
# Move the node to the PyTables database
pt_node = self.getDBDoc(src_filepath).get_node(childpath)
db_doc = self.getDBDoc(src_filepath)
if hasattr(pt_node, 'target'):
editor = tlink_editor.TLinkEditor(db_doc)
else:
editor = tnode_editor.TNodeEditor(db_doc)
movedname = editor.move(childpath, self.getDBDoc(dst_filepath),
parentpath, nodename)
finally:
QtWidgets.qApp.restoreOverrideCursor()
return movedname
def pasteNode(self, index, childname, overwrite=False):
"""Paste a tables.Node.
Paste the last copied/cut node under the currently selected group.
:Parameters:
- `index`: the index of the selected node (the parent group)
- `childname`: the name of the node being pasted
- `overwrite`: True if a node is being overwritten
"""
try:
QtGui.qApp.setOverrideCursor(QtCore.Qt.WaitCursor)
parent = self.nodeFromIndex(index)
# If the overwritten node (if any) exists in the tree of
# databases view then delete it
if overwrite:
self.overwriteNode(parent, index, childname)
# Paste the copied/cut node in the destination database
db_doc = self.getDBDoc(parent.filepath)
if self.ccni['target']:
editor = tlink_editor.TLinkEditor(db_doc)
else:
editor = tnode_editor.TNodeEditor(db_doc)
src_node = self.copiedNode()
editor.paste(src_node, parent.node, childname)
# Paste the node in the tree of databases model/view
self.lazyAddChildren(index)
parent.updated = True
# Select the pasted node
self.selectIndex(index, childname)
finally:
QtGui.qApp.restoreOverrideCursor()
def editor(self):
"""Return an instance of `TNodeEditor`.
"""
return tnode_editor.TNodeEditor(self.dbt_model.getDBDoc(self.filepath))
