Soportar campos númericos con decimales

app/models/metadata_float.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+# Un campo numérico de punto flotante
+class MetadataFloat < MetadataTemplate
+  # Nada
+  def default_value
+    super || nil
+  end
+
+  def save
+    return true unless changed?
+
+    self[:value] = value.to_f
+    self[:value] = encrypt(value) if private?
+
+    true
+  end
+
+  # Indicarle al navegador que acepte números decimales
+  #
+  # @return [Float]
+  def step
+    0.05
+  end
+
+  private
+
+  def decrypt(value)
+    super(value).to_f
+  end
+end

app/views/posts/attribute_ro/_float.haml

@@ -0,0 +1,3 @@
+%tr{ id: attribute }
+  %th= post_label_t(attribute, post: post)
+  %td{ dir: dir, lang: locale }= metadata.value

app/views/posts/attributes/_float.haml

@@ -0,0 +1,6 @@
+.form-group
+  = label_tag "#{base}_#{attribute}", post_label_t(attribute, post: post)
+  = number_field base, attribute, value: metadata.value, step: metadata.step,
+    **field_options(attribute, metadata)
+  = render 'posts/attribute_feedback',
+    post: post, attribute: attribute, metadata: metadata