+from sqlobject.sqlbuilder import AND, OR, func
+from .config import get_config
+from .db import Author, Book, Extension, Genre, Language
__all__ = [
+ 'mk_search_conditions',
'search_authors', 'search_books', 'search_extensions',
'search_genres', 'search_languages',
]
-from sqlobject.sqlbuilder import AND, func
-from .db import Author, Book, Extension, Genre, Language
-
-
-def _search_exact(table, case_sensitive, values):
- expressions = []
- if case_sensitive:
- for column, value in values.items():
- expressions.append(getattr(table.q, column) == value)
- else:
- for column, value in values.items():
- expressions.append(
- func.lower(getattr(table.q, column)) == value.lower())
- return AND(*expressions)
-
-def _search_start(table, case_sensitive, values):
- expressions = []
+def _mk_search_conditions_with_operator(table, case_sensitive, comparison_op,
+ values, expressions):
+ if expressions is None:
+ expressions = []
+ _expressions = []
+ for column, value in values.items():
+ if column == 'id':
+ _expressions.append(table.q.id == value)
+ break
if case_sensitive:
for column, value in values.items():
- expressions.append(getattr(table.q, column).startswith(value))
+ if column == 'id':
+ continue
+ _expressions.append(
+ getattr(getattr(table.q, column), comparison_op)(value))
+ for expr, value in expressions:
+ _expressions.append(
+ getattr(expr, comparison_op)(value))
else:
for column, value in values.items():
- expressions.append(
- func.lower(getattr(table.q, column)).startswith(value.lower()))
- return AND(*expressions)
-
-
-def _search_substring(table, case_sensitive, values):
- expressions = []
- if case_sensitive:
- for column, value in values.items():
- expressions.append(getattr(table.q, column).contains(value))
- else:
- for column, value in values.items():
- expressions.append(
- func.lower(getattr(table.q, column)).contains(value.lower()))
- return AND(*expressions)
-
-
-def _search(table, search_type, case_sensitive, values):
- _search_f = globals()['_search_%s' % search_type]
- conditions = _search_f(table, case_sensitive, values)
- return table.select(conditions)
-
-
-def search_authors(search_type, case_sensitive, values):
- return _search(Author, search_type, case_sensitive, values)
-
-
-def search_books(search_type, case_sensitive, values):
- return _search(Book, search_type, case_sensitive, values)
-
-
-def search_extensions(search_type, case_sensitive, values):
- return _search(Extension, search_type, case_sensitive, values)
-
-
-def search_genres(search_type, case_sensitive, values):
- return _search(Genre, search_type, case_sensitive, values)
-
-
-def search_languages(search_type, case_sensitive, values):
- return _search(Language, search_type, case_sensitive, values)
+ if column == 'id':
+ continue
+ _expressions.append(
+ getattr(func.lower(
+ getattr(table.q, column)),
+ comparison_op)(value.lower()))
+ for expr, value in expressions:
+ _expressions.append(
+ getattr(func.lower(expr), comparison_op)(value.lower()))
+ return _expressions
+
+
+_comparison_operators = {
+ 'start': 'startswith',
+ 'substring': 'contains',
+ 'full': '__eq__',
+}
+
+
+def mk_search_conditions(table, search_type, case_sensitive, values,
+ expressions=None, join_expressions=None):
+ if join_expressions is None:
+ join_expressions = []
+ return _mk_search_conditions_with_operator(
+ table, case_sensitive, _comparison_operators[search_type],
+ values, expressions) + join_expressions
+
+
+def _search(table, search_type, case_sensitive, values,
+ expressions=None, join_expressions=None, orderBy=None):
+ conditions = mk_search_conditions(
+ table, search_type, case_sensitive, values, expressions=expressions,
+ join_expressions=join_expressions)
+ return table.select(AND(*conditions), orderBy=orderBy)
+
+
+def search_authors(search_type, case_sensitive, values,
+ expressions=None, orderBy=None):
+ return _search(Author, search_type, case_sensitive, values,
+ expressions=expressions, orderBy=orderBy)
+
+
+def search_books(search_type, case_sensitive, values, join_expressions=None,
+ orderBy=None, use_filters=False):
+ if use_filters:
+ config = get_config()
+ lang_filter = config.getlist('filters', 'lang')
+ deleted_filter = config.getint('filters', 'deleted')
+ if lang_filter:
+ if join_expressions is None:
+ join_expressions = []
+ lang_conditions = []
+ for lang in lang_filter:
+ lvalues = {'name': lang}
+ conditions = mk_search_conditions(
+ Language, search_type, case_sensitive, lvalues)
+ lang_conditions.append(conditions)
+ join_expressions.append(Book.j.language)
+ join_expressions.append(OR(*lang_conditions))
+ conditions = mk_search_conditions(
+ Book, search_type, case_sensitive, values,
+ join_expressions=join_expressions)
+ if use_filters and not deleted_filter:
+ conditions.append(Book.q.deleted == False) # noqa: E712
+ return Book.select(AND(*conditions), orderBy=orderBy)
+
+
+def search_extensions(search_type, case_sensitive, values, orderBy=None):
+ return _search(Extension, search_type, case_sensitive, values,
+ orderBy=orderBy)
+
+
+def search_genres(search_type, case_sensitive, values, orderBy=None):
+ return _search(Genre, search_type, case_sensitive, values,
+ orderBy=orderBy)
+
+
+def search_languages(search_type, case_sensitive, values, orderBy=None):
+ return _search(Language, search_type, case_sensitive, values,
+ orderBy=orderBy)
projects / m_librarian.git / blobdiff