forgeplus/app/controllers/admins/page_themes_controller.rb

class Admins::PageThemesController <  Admins::Topic::BaseController
    before_action :finder_page_theme, only: [:edit, :update, :destroy]

    def index
        params[:sort_by] = params[:sort_by].presence || 'created_at'
        params[:sort_direction] = params[:sort_direction].presence || 'desc'
    
        page_themes = Admins::PageThemesQuery.call(params)
    
        @page_themes = paginate page_themes
    end

    def show
        render 'edit'
    end

    def edit
    end  

    def create 
        @page_theme = PageTheme.new update_params
        
        if @page_theme.save 
            save_image_file(params[:image_url], @page_theme)
            redirect_to admins_page_themes_path
            flash[:success] = "新增主题成功"
        else
            redirect_to admins_page_themes_path
            flash[:danger] = "新增主题失败: #{@page_theme.errors.messages.values.flatten.join(',')}"
        end
    end

    def destroy
        if @page_theme.destroy 
            redirect_to admins_page_themes_path
            flash[:success] = "删除主题成功"
        else  
            redirect_to admins_page_themes_path
            flash[:danger] = "删除主题失败"
        end
    end

    def new
        @page_theme = PageTheme.new
    end

    def update
        @page_theme.update(update_params)
        flash[:success] = '保存成功'
        render 'edit'
    end

    private
    def finder_page_theme
        @page_theme = PageTheme.find(params[:id])
    end

    def update_params
        params.require(:page_theme).permit(:language_frame, :name, :cate, :image_url, :clone_url)
    end
end