mostrando/escondendo perguntas dependentes

media/js/diagnosticos/diagnosticos_categorias_form.js

@@ -35,15 +35,60 @@ $('#page').live('pageinit', function(event){
   });
 
   // remove a resposta vazia da interface
-  $("div.ui-radio span.ui-btn-text:contains('---------')").parentsUntil("ul").hide()
+  $("div.ui-radio span.ui-btn-text:contains('---------')").parentsUntil("ul").hide();
 
   // para todo input do from registra um evento
   // ao modificar o campo
   $("div.ui-field-contain textarea, div.ui-field-contain input, div.ui-field-contain select").change(function () {
+    // mostra ou esconde uma pergunta dependente
+    var id_to_open = []
+    var id_to_close = []
+    $('input[name=' + $(this).attr('name') + ']').each(function () {
+        schema = $(this);
+        schema_to_open = schema.attr('schema_to_open');
+        if (schema_to_open) {
+            if (schema.is(':checked'))
+                id_to_open.push(schema_to_open)
+            else
+                id_to_close.push(schema_to_open)
+        }
+    });
+
+    for (var i in id_to_close) {
+        id = id_to_close[i]
+        // Evita apagar uma pergunta caso ela possa
+        // ser exibida por outra questão
+        if (id_to_open.indexOf(id_to_close[i]) == -1) {
+            // limpa o valor para não salva-lo
+            // no submit do form
+            $("#" + id + " input").val('');
+            $("#" + id).slideUp();
+        }
+    }
+
+    // Exibe as perguntas que devem estar disponiveis
+    for (var i in id_to_open) {
+        id = id_to_open[i]
+        $("#" + id).slideDown();
+    }
+
     $.ajax({
       data: $('#diagnostico').serializeArray()
-    })
+    });
-  })
+
+  });
+
+  $('input[schema_to_open]').each(function () {
+    schema = $(this);
+    schema_to_open = $("#" + schema.attr('schema_to_open'));
+    schema_to_open.hide();
+  });
+
+  $('input[schema_to_open]:checked').each(function () {
+    schema = $(this);
+    schema_to_open = $("#" + schema.attr('schema_to_open'));
+    schema_to_open.show();
+  });
 
   // se carregou o js sem erros mostra as perguntas
   $("#waiting").hide();

sigi/apps/diagnosticos/forms.py

@@ -3,17 +3,17 @@
 from copy import deepcopy
 from django import forms
 from django.forms.forms import BoundField
-from django.forms import (BooleanField, CharField, CheckboxSelectMultiple,
+from django.forms import (BooleanField, CharField, DateField,
-                          DateField, FloatField, ModelChoiceField,
+                          FloatField, ModelChoiceField, Textarea,
-                          ModelMultipleChoiceField, RadioSelect, Textarea)
+                          ModelMultipleChoiceField)
 from django.contrib.contenttypes.generic import generic_inlineformset_factory
 from sigi.apps.casas.models import CasaLegislativa, Funcionario
 from sigi.apps.contatos.models import Telefone
 from sigi.apps.diagnosticos.models import Diagnostico
+from sigi.apps.diagnosticos.widgets import EavCheckboxSelectMultiple, EavRadioSelect
 from eav.forms import BaseDynamicEntityForm
 from eav.fields import RangeField
 
-
 class DiagnosticoForm(BaseDynamicEntityForm):
     """Classe responsável por contruir o formulário,
     vinculando ao modelo Diagnostico
@@ -39,8 +39,8 @@ class DiagnosticoMobileForm(BaseDynamicEntityForm):
     }
 
     FIELD_EXTRA = {
-        'one': {'widget': RadioSelect},
+        'one': {'widget': EavRadioSelect},
-        'many': {'widget': CheckboxSelectMultiple},
+        'many': {'widget': EavCheckboxSelectMultiple},
     }
 
     FIELD_WIDGET = {

sigi/apps/diagnosticos/widgets.py

@@ -0,0 +1,61 @@
+from itertools import chain
+from django.forms.widgets import CheckboxInput, CheckboxSelectMultiple, RadioSelect, RadioFieldRenderer, RadioInput
+from django.utils.html import conditional_escape
+from django.utils.encoding import force_unicode
+from django.utils.safestring import mark_safe
+from sigi.apps.diagnosticos.models import Escolha
+
+class EavCheckboxSelectMultiple(CheckboxSelectMultiple):
+    def render(self, name, value, attrs=None, choices=()):
+        if value is None: value = []
+        final_attrs = self.build_attrs(attrs, name=name)
+        output = [u'<ul>']
+        str_values = set([force_unicode(v) for v in value])
+        for i, (option_value, option_label) in enumerate(chain(self.choices, choices)):
+            final_attrs = dict(final_attrs, id='%s_%s' % (attrs['id'], i))
+            label_for = u' for="%s"' % final_attrs['id']
+
+            # Caso exista uma pergunta para abrir
+            # adiciona um atripbuto no checkbox
+            schema_to_open = Escolha.objects.get(pk=option_value).schema_to_open
+            if schema_to_open:
+                final_attrs['schema_to_open'] = schema_to_open.name
+
+            cb = CheckboxInput(final_attrs, check_test=lambda value: value in str_values)
+            option_value = force_unicode(option_value)
+            rendered_cb = cb.render(name, option_value)
+            option_label = conditional_escape(force_unicode(option_label))
+            output.append(u'<li><label%s>%s %s</label></li>' % (label_for, rendered_cb, option_label))
+        output.append(u'</ul>')
+        return mark_safe(u'\n'.join(output))
+
+class EavRadioFieldRenderer(RadioFieldRenderer):
+    def __iter__(self):
+        for i, choice in enumerate(self.choices):
+            final_attrs = self.attrs.copy()
+
+            # Caso exista uma pergunta para abrir
+            # adiciona um atripbuto no checkbox
+            if choice[0]:
+                schema_to_open = Escolha.objects.get(pk=choice[0]).schema_to_open
+                if schema_to_open:
+                    final_attrs['schema_to_open'] = schema_to_open.name
+
+            yield RadioInput(self.name, self.value, final_attrs, choice, i)
+
+    def __getitem__(self, idx):
+        choice = self.choices[idx]
+
+        final_attrs = self.attrs.copy()
+
+        # Caso exista uma pergunta para abrir
+        # adiciona um atripbuto no checkbox
+        schema_to_open = Escolha.objects.get(pk=self.value).schema_to_open
+        if schema_to_open:
+            final_attrs['schema_to_open'] = schema_to_open.name
+
+        return RadioInput(self.name, self.value,final_attrs, choice, idx)
+
+class EavRadioSelect(RadioSelect):
+    renderer = EavRadioFieldRenderer
+