我有一个嵌套的表单,并且在另一个表单中。基本上我所拥有的是一堆成分,对于每种成分,我有一个数量和单位,存储在Entry和Ingredient之间的关联表中,称为EntryIngredient。使用我的以下JS,我可以添加动态字段,但是当我提交时,我收到了AssociationTypeMismatch错误。不知道为什么,参数对我来说很好("ingredients_attributes"=>{"0"=>{"name"=>"Salt", "entry_ingredients"=>{"quantity"=>"2.5", "unit"=>"tbspns"}, "_destroy"=>""}}}}
),我错过了什么?实际上,我认为这可能是因为它发送为entry_ingredients
而不是entry_ingredients_attributes
,但我没有看到我在第二个嵌套表单中做了哪些不同的操作。这是第一个包含成分领域的表格:
<div id="ingredients">
<p>Ingredient List:</p>
<%= f.fields_for :ingredients, @entry.ingredients.build do |builder| %>
<%= render 'ingredient_fields', :f => builder %>
<% end %>
</div>
<div id='add_ingredient'>Add Ingredient</div>
<div class="actions">
<%= f.submit %>
以下是entry_ingredients的代码:
<ul id="ingredient_list">
<li>
<%= f.label :name %>
<%= f.text_field :name, :class => "ingredient_field" %>
<%= f.hidden_field :_destroy, :class => "delete_ingredient" %>
<%= f.fields_for :entry_ingredients, @entry.entry_ingredients.build do |builder| %>
<%= render 'entry_ingredient_fields', :f => builder %>
<% end %>
<%= link_to "Remove", "#", :class => "remove_fields" %>
</li>
</ul>
并且继续我的JS动态添加新成分:
$('form').on('click', '#add_ingredient', function(){
count = $('#ingredient_list li').length;
field = $('#ingredient_list li').first()
.clone() //clone the first element in the list
.find('input') //find all its inputs
.val('') //set all input values to blank
.end()
.find($('.ingredient_field'))
.prop({id: 'entry_ingredients_attributes_' + count + '_name', name: 'entry[ingredients_attributes][' + count +'][name]' })
.end()
.find($('.delete_ingredient'))
.prop({id: 'entry_ingredients_attributes_' + count + '__destroy', name: 'entry[ingredients_attributes][' + count +'][_destroy]', value: 'false' })
.end()
.find($('.ingredient_quantity'))
.prop({id: 'entry_ingredients_attributes_' + count + '_entry_ingredients_quantity', name: 'entry[ingredients_attributes][' + count +'][entry_ingredients][quantity]'})
.end()
.find($('.ingredient_unit'))
.prop({id: 'entry_ingredients_attributes_' + count + '_entry_ingredients_unit', name: 'entry[ingredients_attributes][' + count +'][entry_ingredients][unit]'})
.end();
$('#ingredient_list').append(field);
})
答案 0 :(得分:1)
表单助手检查模型之间的关系,以确定如何提交参数。您是否在accepts_nested_attributes_for :entry_ingredients
模型中添加了Ingredient
?