+
+__all__ = [
+ '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 = []
+ if case_sensitive:
+ for column, value in values.items():
+ expressions.append(getattr(table.q, column).startswith(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)