我收到错误-未定义的方法collect
进行nil:NilClass
,但我能够从另一个数据库表呈现选项列表,还可以将数据保存期表,但无法对其进行更新。我正在阶段表单字段职责选项中呈现选项列表表单职责表,并将该选项保存到阶段表中。
stage_controller.rb
def index
redirect_to project_path(@project)
end
def show
end
def new
@stage = Stage.new
@responsibilities = @project.responsibilities
end
def edit
end
def create
@responsibilities = @project.responsibilities
@stage = @project.stages.build(stage_params)
respond_to do |format|
if @stage.save
format.html { redirect_to project_path(@project), notice: 'Stage was successfully created.' }
format.json { render :show, status: :created, location: @stage }
else
format.html { render :new }
format.json { render json: @stage.errors, status: :unprocessable_entity }
end
end
end
def update
@responsibilities = @project.responsibilities
respond_to do |format|
if @stage.update(stage_params)
format.html { redirect_to project_stages_url, notice: 'Stage was successfully updated.' }
format.json { render :show, status: :ok, location: @stage }
else
format.html { render :edit }
format.json { render json: @stage.errors, status: :unprocessable_entity }
end
end
end
def destroy
@stage.destroy
respond_to do |format|
format.html { redirect_to project_stages_url, notice: 'Stage was successfully deleted.' }
format.json { head :no_content }
end
end
private
def set_stage
@stage = Stage.find(params[:id])
end
def find_project
@project = Project.find(params[:project_id])
end
您的编辑方法为空,因此@responsibility不包含任何内容(空),例如,您可以放置一些代码(来自其他方法)
def edit
@project = Project.find(params[:id])
@responsibilities = @project.responsibilities
...
end
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我来说两句