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87 lines
2.5 KiB
87 lines
2.5 KiB
class Admins::CarouselsController < Admins::BaseController
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before_action :convert_file!, only: [:create]
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helper_method :current_laboratory
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def index
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@images = current_laboratory.portal_images.order(position: :asc)
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end
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def create
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position = current_laboratory.portal_images.count + 1
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ActiveRecord::Base.transaction do
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image = current_laboratory.portal_images.create!(create_params.merge(position: position))
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file_path = Util::FileManage.disk_filename('PortalImage', image.id)
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File.delete(file_path) if File.exist?(file_path) # 删除之前的文件
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Util.write_file(@file, file_path)
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end
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flash[:success] = '保存成功'
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redirect_to admins_laboratory_carousels_path(current_laboratory)
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end
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def update
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current_image.update!(update_params)
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render_ok
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end
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def destroy
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ActiveRecord::Base.transaction do
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current_image.destroy!
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# 前移
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current_laboratory.portal_images.where('position > ?', current_image.position)
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.update_all('position = position - 1')
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file_path = Util::FileManage.disk_filename('PortalImage', current_image.id)
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File.delete(file_path) if File.exist?(file_path)
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end
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render_delete_success
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end
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def drag
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move = current_laboratory.portal_images.find_by(id: params[:move_id])
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after = current_laboratory.portal_images.find_by(id: params[:after_id])
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Admins::DragPortalImageService.call(current_laboratory, move, after)
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render_ok
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rescue Admins::DragPortalImageService::Error => e
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render_error(e.message)
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end
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private
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def current_laboratory
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@_current_laboratory ||= Laboratory.find(params[:laboratory_id])
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end
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def current_image
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@_current_image ||= current_laboratory.portal_images.find(params[:id])
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end
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def create_params
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params.require(:portal_image).permit(:name, :link)
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end
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def update_params
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params.permit(:name, :link, :status)
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end
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def convert_file!
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max_size = 10 * 1024 * 1024 # 10M
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file = params.dig('portal_image', 'image')
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if file.class == ActionDispatch::Http::UploadedFile
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@file = file
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render_error('请上传文件') if @file.size.zero?
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render_error('文件大小超过限制') if @file.size > max_size
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else
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file = file.to_s.strip
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return render_error('请上传正确的图片') if file.blank?
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@file = Util.convert_base64_image(file, max_size: max_size)
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end
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rescue Base64ImageConverter::Error => ex
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render_error(ex.message)
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end
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end
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