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Bug #2018227: User Categories: "Hide empty categories" failing for sub-categories

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This commit is contained in:
Charles Haley 2023-05-01 19:12:47 +01:00
parent 7b1078ec28
commit 65bc7643c7
1 changed files with 28 additions and 3 deletions
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31
src/calibre/gui2/tag_browser/model.py
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@ -816,13 +816,38 @@ class TagsModel(QAbstractItemModel): # {{{
process_one_node(category, collapse_model, self.db.new_api.fields['rating'].book_value_map,
state_map.get(category.category_key, {}))
# Fix up the node tree, reordering as needed and deleting undisplayed nodes
# Fix up the node tree, reordering as needed and deleting undisplayed
# nodes. First, remove empty user category subnodes if needed. This is a
# recursive process because the hierarchical categories were combined
# together in process_one_node (above), which also computes the child
# count.
if self.prefs['tag_browser_hide_empty_categories']:
def process_uc_children(parent, depth):
new_children = []
for node in parent.children:
if node.type == TagTreeItem.CATEGORY:
# I could De Morgan's this but I think it is more
# understandable this way
if node.category_key.startswith('@') and len(node.children) == 0:
pass
else:
new_children.append(node)
process_uc_children(node, depth+1)
else:
new_children.append(node)
parent.children = new_children
for node in self.root_item.children:
if node.category_key.startswith('@'):
process_uc_children(node, 1)
# Now check the standard categories and root-level user categories,
# removing any hidden categories and if needed, empty categories
new_children = []
for node in self.root_item.children:
if self.prefs['tag_browser_hide_empty_categories'] and len(node.child_tags()) == 0:
continue
key = node.category_key
if key in self.row_map:
if self.prefs['tag_browser_hide_empty_categories'] and len(node.child_tags()) == 0:
continue
if self.hidden_categories:
if key in self.hidden_categories:
continue