前提・実現したいこと

投稿内容を更新した時に、ターミナルでSystemStackError (stack level too deep):が発生してしまいます。

##発生している問題・エラーメッセージ

User Load (0.3ms) SELECT users.* FROM users WHERE users.id = 1 ORDER BY users.id ASC LIMIT 1
Enterprise Load (0.3ms) SELECT enterprises.* FROM enterprises WHERE enterprises.id = 11 LIMIT 1
↳ app/controllers/enterprises_controller.rb:46:in enterprise_return' (0.1ms) BEGIN ↳ app/controllers/enterprises_controller.rb:30:in update'
User Load (0.2ms) SELECT users.* FROM users WHERE users.id = 1 LIMIT 1
↳ app/controllers/enterprises_controller.rb:30:in update' (0.2ms) ROLLBACK ↳ app/controllers/enterprises_controller.rb:30:in update'
Completed 500 Internal Server Error in 755ms (ActiveRecord: 1.2ms | Allocations: 1471138)

SystemStackError (stack level too deep):

app/controllers/enterprises_controller.rb:30:in `update'

該当のソースコード

class EnterprisesController < ApplicationController
before_action :authenticate_user!
before_action :enterprise_return, only: [:show, :edit, :update, :destroy]

def index
@enterprises = Enterprise.includes(:user).order(industry_id: :desc)
end

def new
@enterprise = Enterprise.new
end

def create
@enterprise = Enterprise.new(enterprise_params)
if @enterprise.save
redirect_to root_path
else
render :new
end
end

def show
end

def edit
end

def update
if @enterprise.update(enterprise_params)　エラー該当箇所です
redirect_to root_path
else
render :edit
end
end

def destroy
@enterprise.destroy
redirect_to enterprises_path
end

private

def enterprise_return
@enterprise = Enterprise.find(params[:id])
unless user_signed_in? && current_user.id == @enterprise.user_id
redirect_to root_path
end
end

def enterprise_params
params.require(:enterprise).permit(:title, :text, :theme, :industry_id).merge(user_id: current_user.id)
end
end

enterprise.rb モデル
class Enterprise < ApplicationRecord
validate extend ActiveHash::Associations::ActiveRecordExtensions
belongs_to :user
belongs_to :industry

with_options presence: true do
validates :title
validates :text
validates :theme
end

validates :industry_id, numericality: { other_than: 0 }

edit.html.erb

<body class="back-image"> <%= form_with(model: @enterprise, local: true) do |f| %> <div class="enterprise-box"> 投稿 <%= f.collection_select(:industry_id, Industry.all, :id, :industry, {}, {class:"industry-select"}) %> <%= f.text_field :title, class:"title", placeholder:"企業名" %> <%= f.text_area :theme, class:"theme", placeholder:"選考段階・面接で聞かれたこと等々" %> <%= f.text_area :text, class:"text", placeholder:"選考での感想やアドバイス" %> <%= f.submit "変更" ,class:"btn" %> </div> <% end %> </body> end