Rails 4-Cocoon gem的嵌套属性 [英] Rails 4 - nested attributes with Cocoon gem
问题描述
我正在尝试使用Rails 4制作应用.
I'm trying to make an app with Rails 4.
我正在将Cocoon gem用于具有简单形式的嵌套形式.
I'm using Cocoon gem for nested forms with simple form.
我有一个资格模型，嵌套在个人资料模型中.关联是:
I have a qualifications model, nested in a profile model. The associations are:
资格
belongs_to :profile
个人资料
has_many :qualifications
accepts_nested_attributes_for :qualifications, reject_if: :all_blank, allow_destroy: true
在我的个人资料表格中，我将资格条件属性与以下内容合并在一起:
In my profile form, I incorporate the qualifications attributes with:
<%= f.simple_fields_for :qualifications do |f| %>
<%= render 'qualifications/qualification_fields', f: f %>
<% end %>
在我的资格"表单属性中，我具有:
In my Qualifications form attributes, I have:
<div class="nested-fields">
<div class="container-fluid">
<div class="form-inputs">
<div class="row">
<div class="col-md-6">
<%= f.input :title, :label => "Your award" %>
</div>
<div class="col-md-6">
</div>
</div>
<div class="row">
<div class="col-md-8">
<%= f.input :pending, :label => "Are you currently studying toward this qualification?" %>
</div>
</div>
<div class="row">
<div class="col-md-4">
<%= f.input :level, collection: [ "Bachelor's degree", "Master's degree", "Ph.D", "Post Doctoral award"] %>
</div>
<div class="col-md-4">
<%= f.input :year_earned, :label => "When did you graduate?", collection: (Date.today.year - 50)..(Date.today.year + 5) %>
</div>
</div>
<div class="row">
<div class="col-md-6">
<%= link_to_remove_association 'Remove this qualification', f %>
</div>
</div>
</div>
</div>
</div>
在我的个人资料控制器中，我有:
In my profiles controller I have:
def new
@profile = Profile.new
@profile.qualifications_build
@profile.build_vision
@profile.build_personality
@profile.addresses_build
authorize @profile
end
# GET /profiles/1/edit
def edit
@profile.build_personality unless @profile.personality
@profile.qualifications_build unless @profile.qualifications
@profile.build_vision unless @profile.vision
@profile.addresses_build unless @profile.addresses
end
# POST /profiles
# POST /profiles.json
def create
@profile = Profile.new(profile_params)
authorize @profile
respond_to do |format|
if @profile.save
format.html { redirect_to @profile }
format.json { render :show, status: :created, location: @profile }
else
format.html { render :new }
format.json { render json: @profile.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /profiles/1
# PATCH/PUT /profiles/1.json
def update
# successful = @profile.update(profile_params)
# Rails.logger.info "xxxxxxxxxxxxx"
# Rails.logger.info successful.inspect
# user=@profile.user
# user.update.avatar
respond_to do |format|
if @profile.update(profile_params)
format.html { redirect_to @profile }
format.json { render :show, status: :ok, location: @profile }
else
format.html { render :edit }
format.json { render json: @profile.errors, status: :unprocessable_entity }
end
end
end
# DELETE /profiles/1
# DELETE /profiles/1.json
def destroy
@profile.destroy
respond_to do |format|
format.html { redirect_to profiles_url }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_profile
@profile = Profile.find(params[:id])
authorize @profile
end
# Never trust parameters from the scary internet, only allow the white list through.
def profile_params
params.require(:profile).permit( :title, :hero, :overview, :research_interest, :occupation, :external_profile,
:working_languages, :tag_list,
industry_ids: [],
user_attributes: [:avatar],
personality_attributes: [:average_day, :fantasy_project, :preferred_style],
vision_attributes: [ :long_term, :immediate_challenge],
qualifications_attributes: [ :level, :title, :year_earned, :pending, :institution, :_destroy],
addresses_attributes: [:id, :unit, :building, :street_number, :street, :city, :region, :zip, :country, :time_zone, :latitude, :longitude, :_destroy],
industries_attributes: [:id, :sector, :icon] )
end
end
我的问题是:
-
当我保存所有这些并尝试使用它时，每次我更新配置文件时，它都会为资格创建一个新条目，因此，每次更新都会显示重复的资格列表(即使未进行任何更新)田野).
when I save all of this and try it, each time I update the profile, it creates a new entry for the qualifications, so the list of qualifications displayed duplicates on every update (even when no update is made to the fields).
当我更新配置文件表单并单击删除资格时，它不会从阵列中删除.我可以在控制台中删除它们，但不能使用表单.
When I update the profile form and click remove qualification, it does not get removed from the array. I can delete them in the console, but not using the form.
我担心如果删除
@profile.qualifications_build unless @profile.qualifications
在配置文件控制器中的编辑操作中，我将无法更新这些属性.
from the edit action in the profile controller, I won't be able to update those attributes.
另外，对我来说，删除将解决删除资格问题没有任何意义.我是否需要在删除资格链接中添加一些内容以强制其删除条目?
Also, it doesn't make sense to me that removing that would solve the problem with removing qualifications. Do I need to add something to the remove qualification link to force it to remove the entry?
推荐答案
我认为您只是忘记在profile_params的资格条件允许的参数中添加:id:
I think you just forgot to add :id in the allowed parameters for qualifications, in your profile_params:
qualifications_attributes: [ :id, :level, :title, :year_earned, :pending, :institution, :_destroy]
如果没有匹配的ID，则任何资格都将被视为新的资格.
Without an ID to match, any qualification will be seen as a new one.
这篇关于Rails 4-Cocoon gem的嵌套属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
