Fix #861 -- Add language dropdown

cadasta/config/settings/default.py

@@ -14,6 +14,7 @@
 import os
 
 from django.utils.translation import ugettext_lazy as _
+from .languages import FORM_LANGS  # noqa
 
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 

cadasta/config/settings/languages.py

@@ -0,0 +1,78 @@
+from django.utils.translation import ugettext_lazy as _
+
+
+FORM_LANGS = {
+    'af': _('Afrikaans'),
+    'ar': _('Arabic'),
+    'az': _('Azerbaijani'),
+    'be': _('Belarusian'),
+    'bg': _('Bulgarian'),
+    'bn': _('Bengali'),
+    'br': _('Breton'),
+    'bs': _('Bosnian'),
+    'ca': _('Catalan'),
+    'cs': _('Czech'),
+    'cy': _('Welsh'),
+    'da': _('Danish'),
+    'de': _('German'),
+    'el': _('Greek'),
+    'en': _('English'),
+    'eo': _('Esperanto'),
+    'es': _('Spanish'),
+    'et': _('Estonian'),
+    'eu': _('Basque'),
+    'fa': _('Persian (Farsi)'),
+    'fi': _('Finnish'),
+    'fr': _('French'),
+    'fy': _('Western Frisian'),
+    'ga': _('Irish'),
+    'gd': _('Scottish Gaelic'),
+    'gl': _('Galician'),
+    'he': _('Hebrew'),
+    'hi': _('Hindi'),
+    'hr': _('Croatian'),
+    'hu': _('Hungarian'),
+    'ia': _('Interlingua'),
+    'id': _('Indonesian'),
+    'io': _('Ido'),
+    'is': _('Icelandic'),
+    'it': _('Italian'),
+    'ja': _('Japanese'),
+    'ka': _('Georgian'),
+    'kk': _('Kazakh'),
+    'km': _('Khmer'),
+    'kn': _('Kannada'),
+    'ko': _('Korean'),
+    'lb': _('Luxembourgish'),
+    'lt': _('Lithuanian'),
+    'lv': _('Latvian'),
+    'mk': _('Macedonian'),
+    'ml': _('Malayalam'),
+    'mn': _('Mongolian'),
+    'mr': _('Marathi'),
+    'my': _('Burmese'),
+    'nb': _('Norwegian (Bokmål)'),
+    'ne': _('Nepali'),
+    'nl': _('Dutch'),
+    'nn': _('Norwegian (Nynorsk)'),
+    'os': _('Ossetian'),
+    'pa': _('Eastern Punjabi'),
+    'pl': _('Polish'),
+    'pt': _('Portuguese'),
+    'ro': _('Romanian'),
+    'ru': _('Russian'),
+    'sk': _('Slovak'),
+    'sl': _('Slovene'),
+    'sq': _('Albanian'),
+    'sr': _('Serbian'),
+    'sv': _('Swedish'),
+    'sw': _('Swahili'),
+    'ta': _('Tamil'),
+    'te': _('Telugu'),
+    'th': _('Thai'),
+    'tr': _('Turkish'),
+    'tt': _('Tatar'),
+    'uk': _('Ukrainian'),
+    'ur': _('Urdu'),
+    'vi': _('Vietnamese')
+}

cadasta/core/form_mixins.py

@@ -1,10 +1,12 @@
-from django.forms import Form, ModelForm
-
+from django.forms import Form, ModelForm, MultipleChoiceField
+from jsonattrs.mixins import template_xlang_labels
 from jsonattrs.forms import form_field_from_name
 from django.contrib.contenttypes.models import ContentType
 from tutelary.models import Role
 
+from questionnaires.models import Questionnaire, Question, QuestionOption
 from .mixins import SchemaSelectorMixin
+from .widgets import XLangSelect, XLangSelectMultiple
 
 
 class SuperUserCheck:
@@ -22,12 +24,39 @@ def is_superuser(self, user):
 
 
 class AttributeFormMixin(SchemaSelectorMixin):
+    def set_standard_field(self, name, empty_choice=None, field_name=None):
+        if not field_name:
+            field_name = name
+        q = Questionnaire.objects.get(id=self.project.current_questionnaire)
+        default_lang = q.default_language
+        try:
+            question = Question.objects.get(name=name, questionnaire=q)
+            self.fields[field_name].labels_xlang = template_xlang_labels(
+                    question.label_xlat)
+
+            if question.has_options:
+                choices = QuestionOption.objects.filter(
+                    question=question).values_list('name', 'label_xlat')
+                choices, xlang_labels = zip(*[((c[0], c[1].get(default_lang)),
+                                              (c[0], c[1])) for c in choices])
+
+                choices = ([('', empty_choice)] + list(choices)
+                           if empty_choice else list(choices))
+                self.fields[field_name].widget = XLangSelect(
+                    attrs=self.fields[field_name].widget.attrs,
+                    choices=choices,
+                    xlang_labels=dict(xlang_labels)
+                )
+        except Question.DoesNotExist:
+            pass
+
     def create_model_fields(self, field_prefix, attribute_map, new_item=False):
         for selector, attributes in attribute_map.items():
             for name, attr in attributes.items():
                 fieldname = '{}::{}::{}'.format(
                     field_prefix, selector.lower(), name)
                 atype = attr.attr_type
+
                 field_kwargs = {
                     'label': attr.long_name, 'required': attr.required
                 }
@@ -40,6 +69,7 @@ def create_model_fields(self, field_prefix, attribute_map, new_item=False):
                         chs = list(zip(attr.choices, attr.choice_labels))
                     else:
                         chs = [(c, c) for c in attr.choices]
+
                     field_kwargs['choices'] = chs
                 if atype.form_field == 'BooleanField':
                     field_kwargs['required'] = attr.required
@@ -51,7 +81,29 @@ def create_model_fields(self, field_prefix, attribute_map, new_item=False):
                     if len(attr.default) > 0 and len(str(
                             field_kwargs.get('initial', ''))) == 0:
                         self.set_default(field_kwargs, attr)
-                self.fields[fieldname] = field(**field_kwargs)
+
+                f = field(**field_kwargs)
+
+                if hasattr(f.widget, 'choices'):
+                    try:
+                        xlang_labels = dict(zip(attr.choices,
+                                                attr.choice_labels_xlat))
+                    except TypeError:
+                        xlang_labels = {}
+
+                    widget_args = {
+                        'attrs': f.widget.attrs,
+                        'choices': f.widget.choices,
+                        'xlang_labels': xlang_labels
+                    }
+
+                    if isinstance(f, MultipleChoiceField):
+                        f.widget = XLangSelectMultiple(**widget_args)
+                    else:
+                        f.widget = XLangSelect(**widget_args)
+
+                f.labels_xlang = template_xlang_labels(attr.long_name_xlat)
+                self.fields[fieldname] = f
 
     def set_default(self, field_kwargs, attr, boolean=False):
         if len(attr.default) > 0:

cadasta/core/static/css/forms.scss

@@ -48,6 +48,52 @@ tr.contacts-error {
   }
 }
 
+/* =Project translation select dropdown
+-------------------------------------------------------------- */
+
+.langs-select {
+  overflow: hidden; 
+  height: 34px;
+  position: relative;
+  margin-right: 30px;
+  margin-bottom: 0;
+  select {       
+    color: #fff;
+    padding: 4px;
+    padding-right: 25px;
+    background-color: transparent;
+    border: 0;
+    border-radius: 0;
+    outline: none;      
+    -webkit-appearance: none;
+    -moz-appearance: none;
+    appearance: none;
+    box-shadow: unset;
+    -webkit-box-shadow: unset;
+    > option {
+      background: #fff;
+      padding: 6px;
+      color: $gray-dark;
+    } 
+  }
+  &:after {
+    font-family: 'Glyphicons Halflings';
+    font-size: 9px;
+    content:"\e252"; 
+    color: #fff;   
+    padding: 12px 8px;
+    position: absolute; 
+    right: 10px; 
+    top: 0;    
+    z-index: 1;
+    text-align: center;
+    width: 10%;
+    height: 100%;      
+    pointer-events: none;
+    box-sizing: border-box;   
+  }
+}
+
 /* =Required field label
 -------------------------------------------------------------- */