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Enable concatenation of search queries (split by " / ") #1537

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Enable concatenation of search queries (split by " / ") #1537

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c0ca7f0
Enable concatenation of search queries (split by " / ")
MaxGyver83 Jul 17, 2020
b95e3ce
Use itertools.chain instead of reimplementing it
MaxGyver83 Jul 20, 2020
5840b67
Fix: Show cumulative count for concatenated searches
MaxGyver83 Jul 20, 2020
5cf9bdf
Fix: Reset result_count and threadlist when rebuilding the search buffer
MaxGyver83 Jul 20, 2020
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34 changes: 20 additions & 14 deletions alot/buffers/search.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,20 +61,26 @@ def rebuild(self, reverse=False):
if exclude_tags:
exclude_tags = [t for t in exclude_tags.split(';') if t]

try:
self.result_count = self.dbman.count_messages(self.querystring)
threads = self.dbman.get_threads(
self.querystring, order, exclude_tags)
except NotmuchError:
self.ui.notify('malformed query string: %s' % self.querystring,
'error')
self.listbox = urwid.ListBox([])
self.body = self.listbox
return

self.threadlist = IterableWalker(threads, ThreadlineWidget,
dbman=self.dbman,
reverse=reverse)
querylist = self.querystring.split(' / ')
for query in querylist:
try:
self.result_count = self.dbman.count_messages(query)
threads = self.dbman.get_threads(
query, order, exclude_tags)
except NotmuchError:
self.ui.notify('malformed query string: %s' % query,
'error')
self.listbox = urwid.ListBox([])
self.body = self.listbox
return

iterablewalker = IterableWalker(threads, ThreadlineWidget,
dbman=self.dbman,
reverse=reverse)
if self.threadlist:
self.threadlist.append(iterablewalker)
else:
self.threadlist = iterablewalker

self.listbox = urwid.ListBox(self.threadlist)
self.body = self.listbox
Expand Down
8 changes: 8 additions & 0 deletions alot/walker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,11 @@
import urwid


def chain(*iterables):
for iterable in iterables:
yield from iterable


class IterableWalker(urwid.ListWalker):

"""An urwid walker for iterables.
Expand Down Expand Up @@ -92,3 +97,6 @@ def _get_next_item(self):

def get_lines(self):
return self.lines

def append(self, iterableWalker):
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What happens if this is called after somebody started iterating over the IterableWalker already? Is that a case we have to think about? Even if this method is trivial it might be worth it to add a docstring to mention such constrains (if there are some).

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Good question. I'll try to test that case somehow.

self.iterable = chain(self.iterable, iterableWalker.iterable)