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author | René 'Necoro' Neumann <necoro@necoro.net> | 2017-02-27 01:18:09 +0100 |
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committer | René 'Necoro' Neumann <necoro@necoro.net> | 2017-02-27 01:18:09 +0100 |
commit | 6bd9dcdb814b2f03f053ff5f5bf9a20ffe092582 (patch) | |
tree | 5813bc7f73c637757662cece27d388547c1bea1d /archivist/peewee_ext.py | |
parent | ef3cda14736df8b8a9f7ff4f022b9a8250713bd9 (diff) | |
download | archivist-6bd9dcdb814b2f03f053ff5f5bf9a20ffe092582.tar.gz archivist-6bd9dcdb814b2f03f053ff5f5bf9a20ffe092582.tar.bz2 archivist-6bd9dcdb814b2f03f053ff5f5bf9a20ffe092582.zip |
Inserting Documents
Diffstat (limited to 'archivist/peewee_ext.py')
-rw-r--r-- | archivist/peewee_ext.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/archivist/peewee_ext.py b/archivist/peewee_ext.py index 9fda66e..80bb6f4 100644 --- a/archivist/peewee_ext.py +++ b/archivist/peewee_ext.py @@ -1,6 +1,16 @@ from playhouse.sqlite_ext import VirtualModel, VirtualIntegerField, VirtualCharField from peewee import Field +from itertools import starmap +from functools import reduce +import operator as op + +def sqlite_tuple_in(fields, values): + """SQLite does not support (foo, bar) IN ((1,2),(3,4)). + So we construct a '(foo = 1 AND bar = 2) OR (foo = 3 AND bar = 4)' monstrum.""" + subqueries = (reduce(op.and_, starmap(op.eq, zip(fields, value_tuple))) for value_tuple in values) + return reduce(op.or_, subqueries) + class EnumField(Field): db_field = 'enum' |