#7 New Form

* adds NewEmaForm and EditEmaForm
* refactors ResponsibilityData related form fields into reusable mixin CompensationResponsibleFormMixin
   * used in NewEcoAccountForm and NewEmaForm for easier maintaining and reducing amount of code
* refactors templates /xy/new/view.html into /xy/form/view.html since the same template file is used for new and edit forms

compensation/forms/forms.py

@@ -85,10 +85,61 @@ class AbstractCompensationForm(BaseForm):
         abstract = True
 
 
+class CompensationResponsibleFormMixin(forms.Form):
+    """ Encapsulates form fields used in different compensation related models like EcoAccount or EMA
+
+    """
+    conservation_office = forms.ModelChoiceField(
+        label=_("Conservation office"),
+        label_suffix="",
+        help_text=_("Select the responsible office"),
+        queryset=KonovaCode.objects.filter(
+            is_archived=False,
+            is_leaf=True,
+            code_lists__in=[CODELIST_CONSERVATION_OFFICE_ID],
+        ),
+        widget=autocomplete.ModelSelect2(
+            url="codes-conservation-office-autocomplete",
+            attrs={
+                "data-placeholder": _("Click for selection")
+            }
+        ),
+    )
+    conservation_file_number = forms.CharField(
+        label=_("Conservation office file number"),
+        label_suffix="",
+        max_length=255,
+        required=False,
+        widget=forms.TextInput(
+            attrs={
+                "placeholder": _("ETS-123/ABC.456"),
+                "class": "form-control",
+            }
+        )
+    )
+    handler = forms.CharField(
+        label=_("Eco-account handler"),
+        label_suffix="",
+        max_length=255,
+        required=False,
+        help_text=_("Who handles the eco-account"),
+        widget=forms.TextInput(
+            attrs={
+                "placeholder": _("Company Mustermann"),
+                "class": "form-control",
+            }
+        )
+    )
+
+
 class NewCompensationForm(AbstractCompensationForm):
     """ Form for creating new compensations.
 
     Can be initialized with an intervention id for preselecting the related intervention.
+        form = NewCompensationForm(request.POST or None, intervention_id=intervention_id)
+        ...
+    The intervention id will not be resolved into the intervention ORM object but instead will be used to initialize
+    the related form field.
 
     """
     intervention = forms.ModelChoiceField(
@@ -172,6 +223,9 @@ class NewCompensationForm(AbstractCompensationForm):
 
 
 class EditCompensationForm(NewCompensationForm):
+    """ Form for editing compensations
+
+    """
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.form_title = _("Edit compensation")
@@ -224,48 +278,12 @@ class EditCompensationForm(NewCompensationForm):
         return self.instance
 
 
-class NewEcoAccountForm(AbstractCompensationForm):
-    conservation_office = forms.ModelChoiceField(
-        label=_("Conservation office"),
-        label_suffix="",
-        help_text=_("Select the responsible office"),
-        queryset=KonovaCode.objects.filter(
-            is_archived=False,
-            is_leaf=True,
-            code_lists__in=[CODELIST_CONSERVATION_OFFICE_ID],
-        ),
-        widget=autocomplete.ModelSelect2(
-            url="codes-conservation-office-autocomplete",
-            attrs={
-                "data-placeholder": _("Click for selection")
-            }
-        ),
-    )
-    conservation_file_number = forms.CharField(
-        label=_("Conservation office file number"),
-        label_suffix="",
-        max_length=255,
-        required=False,
-        widget=forms.TextInput(
-            attrs={
-                "placeholder": _("ETS-123/ABC.456"),
-                "class": "form-control",
-            }
-        )
-    )
-    handler = forms.CharField(
-        label=_("Eco-account handler"),
-        label_suffix="",
-        max_length=255,
-        required=False,
-        help_text=_("Who handles the eco-account"),
-        widget=forms.TextInput(
-            attrs={
-                "placeholder": _("Company Mustermann"),
-                "class": "form-control",
-            }
-        )
-    )
+class NewEcoAccountForm(AbstractCompensationForm, CompensationResponsibleFormMixin):
+    """ Form for creating eco accounts
+
+    Inherits from basic AbstractCompensationForm and further form fields from CompensationResponsibleFormMixin
+
+    """
     field_order = [
         "identifier",
         "title",
@@ -333,6 +351,9 @@ class NewEcoAccountForm(AbstractCompensationForm):
 
 
 class EditEcoAccountForm(NewEcoAccountForm):
+    """ Form for editing eco accounts
+
+    """
     surface = forms.DecimalField(
         min_value=0.00,
         decimal_places=2,