在尝试创建记录时，我收到错误“未定义的方法被破坏？”就在“if @ form_response.save”这一点，我不知道为什么。这是控制器：
class FormResponsesController < ApplicationController
before_action :authenticate_user!
before_action :initialize_form, only: [:new]
def index
@patient = Patient.find(params[:patient_id])
@forms = Form.all
end
def new
end
def create
@patient = Patient.find(params[:patient_id])
@form = Form.find(params[:form_id])
@form_response = FormResponse.new(form_response_params)
@form_response.patient = @patient
@form_response.form = @form
if @form_response.save
flash[:success] = "Form filled out."
redirect_to patient_forms_path
else
puts("Wasn't created")
flash[:error] = @form_response.errors.full_messages.to_sentence
# THIS ISN'T WORKING, FIX THIS
redirect_to new_patient_form_response_path(id: params[:form_id])
end
end
def show
end
def destroy
@form_response = FormResponse.find(params[:id]).destroy
flash[:success] = "Form Response Deleted."
redirect_to patient_forms_path, notice: "Form Response Deleted."
end
private
def initialize_form
puts("initialize_form")
@patient = Patient.find(params[:patient_id])
@form = Form.find(params[:id])
@form_response = FormResponse.new()
@form.form_sections.each_with_index do |section, index|
@form_response.form_response_sections.build(
form_section: section
)
section.form_fields.each do |field|
@form_response.form_response_sections[index].form_response_fields.build(
field_type: field.field_type,
name: field.name,
key: field.key,
field_width: field.field_width,
value: field.value,
description: field.description,
required: field.required,
form_field: field
)
end
end
end
def form_response_params
params.require("form_response").permit(
form_response_sections_attributes: [
:form_section_id,
form_response_fields_attributes: [
:form_field_id,
:key,
:value
]
]
)
end
端
FormResponse模型：
class FormResponse < ApplicationRecord
belongs_to :patient
belongs_to :form
has_many :form_response_sections
accepts_nested_attributes_for :form_response_sections
end
FormResponseSection模型
class FormResponseSection < ApplicationRecord
belongs_to :form_response_fields
belongs_to :form_section
has_many :form_response_fields
accepts_nested_attributes_for :form_response_fields
end
FormResponseField模型
class FormResponseField < ApplicationRecord
belongs_to :form_response_section
belongs_to :form_field
end
正如你所看到的，有两个嵌套属性，试图理解可能出现的问题......“自从被破坏后？”不应该在这一点上运行，因为它不存在。这是提交新方法时的控制台输出：
pp/controllers/form_responses_controller.rb:20:in `create'
::1 - - [24/May/2018:15:20:39 PDT] "POST /patients/1/form_responses HTTP/1.1" 500 192571
http://localhost:3000/patients/1/form_responses/new?id=1 -> /patients/1/form_responses
Started POST "/patients/1/form_responses" for ::1 at 2018-05-24 15:20:41 -0700
Processing by FormResponsesController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"zN9OLKcZRE9li1j019Mp1qkvWI8aYqhxbV2YRgPdnfNnJcAqivNtuPjxK6Vm210lGUNGuwoBFcQObRyUVebgWQ==", "form_id"=>"1", "form_response"=>{"form_response_sections_attributes"=>{"0"=>{"form_section_id"=>"1", "form_response_fields_attributes"=>{"0"=>{"form_field_id"=>"1", "value"=>""}, "1"=>{"form_field_id"=>"2", "value"=>""}, "2"=>{"form_field_id"=>"3", "value"=>""}, "3"=>{"form_field_id"=>"4", "value"=>""}, "4"=>{"form_field_id"=>"5", "value"=>""}, "5"=>{"form_field_id"=>"6", "value"=>""}}}, "1"=>{"form_section_id"=>"2", "form_response_fields_attributes"=>{"0"=>{"form_field_id"=>"7", "value"=>"0"}, "1"=>{"form_field_id"=>"8", "value"=>"0"}}}, "2"=>{"form_section_id"=>"3", "form_response_fields_attributes"=>{"0"=>{"form_field_id"=>"9", "value"=>"0"}}}}}, "commit"=>"Submit", "patient_id"=>"1"}
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ? [["id", 1], ["LIMIT", 1]]
Patient Load (0.1ms) SELECT "patients".* FROM "patients" WHERE "patients"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
Form Load (0.1ms) SELECT "forms".* FROM "forms" WHERE "forms"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
(0.1ms) begin transaction
FormSection Load (0.1ms) SELECT "form_sections".* FROM "form_sections" WHERE "form_sections"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 2], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 3], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 4], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 5], ["LIMIT", 1]]
FormField Load (0.0ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 6], ["LIMIT", 1]]
FormSection Load (0.2ms) SELECT "form_sections".* FROM "form_sections" WHERE "form_sections"."id" = ? LIMIT ? [["id", 2], ["LIMIT", 1]]
FormField Load (0.1ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 7], ["LIMIT", 1]]
FormField Load (0.1ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 8], ["LIMIT", 1]]
FormSection Load (0.1ms) SELECT "form_sections".* FROM "form_sections" WHERE "form_sections"."id" = ? LIMIT ? [["id", 3], ["LIMIT", 1]]
FormField Load (0.1ms) SELECT "form_fields".* FROM "form_fields" WHERE "form_fields"."id" = ? LIMIT ? [["id", 9], ["LIMIT", 1]]
(0.1ms) rollback transaction
(0.0ms) begin transaction
SQL (0.4ms) INSERT INTO "form_responses" ("form_id", "patient_id") VALUES (?, ?) [["form_id", 1], ["patient_id", 1]]
(2.2ms) rollback transaction
Completed 500 Internal Server Error in 33ms (ActiveRecord: 3.9ms)
NoMethodError (undefined method `destroyed?' for #<Array:0x007feeff8abf88>):
app/controllers/form_responses_controller.rb:20:in `create'
::1 - - [24/May/2018:15:20:41 PDT] "POST /patients/1/form_responses HTTP/1.1" 500 192571
http://localhost:3000/patients/1/form_responses/new?id=1 -> /patients/1/form_responses