forgeplus/app/controllers/admins/weapp_carousels_controller.rb

80 lines
2.2 KiB
Ruby

class Admins::WeappCarouselsController < Admins::BaseController
before_action :convert_file!, only: [:create]
def index
@carousels = WeappSettings::Carousel.all
end
def create
position = WeappSettings::Carousel.count + 1
ActiveRecord::Base.transaction do
carousel = WeappSettings::Carousel.create!(create_params.merge(position: position))
file_path = Util::FileManage.source_disk_filename(carousel)
File.delete(file_path) if File.exist?(file_path) # 删除之前的文件
Util.write_file(@file, file_path)
end
flash[:success] = '保存成功'
redirect_to admins_weapp_carousels_path
end
def update
current_carousel.update!(update_params)
render_ok
end
def destroy
ActiveRecord::Base.transaction do
current_carousel.destroy!
# 前移
WeappSettings::Carousel.where('position > ?', current_carousel.position)
.update_all('position = position - 1')
file_path = Util::FileManage.source_disk_filename(current_carousel)
File.delete(file_path) if File.exist?(file_path)
end
render_delete_success
end
def drag
move = WeappSettings::Carousel.find_by(id: params[:move_id])
after = WeappSettings::Carousel.find_by(id: params[:after_id])
Admins::DragWeappCarouselService.call(move, after)
render_ok
rescue ApplicationService::Error => e
render_error(e.message)
end
private
def current_carousel
@_current_carousel ||= WeappSettings::Carousel.find(params[:id])
end
def create_params
params.require(:weapp_settings_carousel).permit(:link)
end
def update_params
params.permit(:link, :online)
end
def convert_file!
max_size = 10 * 1024 * 1024 # 10M
file = params.dig('weapp_settings_carousel', 'image')
if file.class == ActionDispatch::Http::UploadedFile
@file = file
render_error('请上传文件') if @file.size.zero?
render_error('文件大小超过限制') if @file.size > max_size
else
file = file.to_s.strip
return render_error('请上传正确的图片') if file.blank?
@file = Util.convert_base64_image(file, max_size: max_size)
end
rescue Base64ImageConverter::Error => ex
render_error(ex.message)
end
end