Merge pull request #31 from eldarion/add-hookset

Add hookset support

formly/conf.py

@@ -0,0 +1,28 @@
+import importlib
+
+from django.conf import settings  # noqa
+from django.core.exceptions import ImproperlyConfigured
+
+from appconf import AppConf
+
+
+def load_path_attr(path):
+    i = path.rfind(".")
+    module, attr = path[:i], path[i + 1:]
+    try:
+        mod = importlib.import_module(module)
+    except ImportError as e:
+        raise ImproperlyConfigured("Error importing {0}: '{1}'".format(module, e))
+    try:
+        attr = getattr(mod, attr)
+    except AttributeError:
+        raise ImproperlyConfigured("Module '{0}' does not define a '{1}'".format(module, attr))
+    return attr
+
+
+class FormlyAppConf(AppConf):
+
+    HOOKSET = "formly.hooks.FormlyDefaultHookset"
+
+    def configure_hookset(self, value):
+        return load_path_attr(value)()

formly/forms/design.py

@@ -1,6 +1,7 @@
 from django import forms
 
-from formly.models import Survey, Page, Field, FieldChoice, OrdinalScale
+from ..hooks import hookset
+from ..models import Survey, Page, Field, FieldChoice, OrdinalScale
 
 
 class SurveyCreateForm(forms.ModelForm):
@@ -59,6 +60,10 @@ class Meta:
 
 class FieldForm(forms.ModelForm):
 
+    def __init__(self, *args, **kwargs):
+        super(FieldForm, self).__init__(*args, **kwargs)
+        self.fields["field_type"].choices = hookset.field_type_choices
+
     class Meta:
         model = Field
         fields = [

formly/hooks.py

@@ -0,0 +1,20 @@
+class FormlyDefaultHookset(object):
+
+    @property
+    def field_type_choices(self):
+        """
+        Customize available field type choices when designing a survey
+        default: Field.FIELD_TYPE_CHOICES
+        """
+        from formly.models import Field
+        return Field.FIELD_TYPE_CHOICES
+
+
+class HookProxy(object):
+
+    def __getattr__(self, attr):
+        from formly.conf import settings
+        return getattr(settings.FORMLY_HOOKSET, attr)
+
+
+hookset = HookProxy()

setup.py

@@ -26,6 +26,7 @@ def read(*parts):
     tests_require=[],
     install_requires=[
         "jsonfield>=1.0.3",
+        "django-appconf>=1.0.2",
     ],
     classifiers=[
         "Development Status :: 3 - Alpha",