Weapons. Migrations.

venv/lib/python3.8/site-packages/multiselectfield/forms/fields.py

@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2012 by Pablo Martín <goinnn@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this programe.  If not, see <http://www.gnu.org/licenses/>.
+
+from django import forms
+
+from ..utils import get_max_length
+from ..validators import MaxValueMultiFieldValidator, MinChoicesValidator, MaxChoicesValidator
+
+
+class MultiSelectFormField(forms.MultipleChoiceField):
+    widget = forms.CheckboxSelectMultiple
+
+    def __init__(self, *args, **kwargs):
+        self.min_choices = kwargs.pop('min_choices', None)
+        self.max_choices = kwargs.pop('max_choices', None)
+        self.max_length = kwargs.pop('max_length', None)
+        super(MultiSelectFormField, self).__init__(*args, **kwargs)
+        self.max_length = get_max_length(self.choices, self.max_length)
+        self.validators.append(MaxValueMultiFieldValidator(self.max_length))
+        if self.max_choices is not None:
+            self.validators.append(MaxChoicesValidator(self.max_choices))
+        if self.min_choices is not None:
+            self.validators.append(MinChoicesValidator(self.min_choices))