64 lines
1.7 KiB
Ruby
64 lines
1.7 KiB
Ruby
class WikiFile < ActiveRecord::Base
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belongs_to :web
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before_save :write_content_to_file
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before_destroy :delete_content_file
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validates_presence_of %w( web file_name )
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validates_length_of :file_name, :within=>1..50
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validates_length_of :description, :maximum=>255
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def self.find_by_file_name(file_name)
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find(:first, :conditions => ['file_name = ?', file_name])
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end
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SANE_FILE_NAME = /^[a-zA-Z0-9\-_\. ]*$/
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def validate
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if file_name
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if file_name !~ SANE_FILE_NAME
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errors.add("file_name", "is invalid. Only latin characters, digits, dots, underscores, " +
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"dashes and spaces are accepted")
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elsif file_name == '.' or file_name == '..'
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errors.add("file_name", "cannot be '.' or '..'")
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end
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end
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if @web and @content
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if (@content.size > @web.max_upload_size.kilobytes)
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errors.add("content", "size (#{(@content.size / 1024.0).round} kilobytes) exceeds " +
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"the maximum (#{web.max_upload_size} kilobytes) set for this wiki")
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end
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end
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errors.add("content", "is empty") if @content.nil? or @content.empty?
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end
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def content=(content)
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if content.respond_to? :read
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@content = content.read
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else
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@content = content
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end
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end
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def content
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@content ||= ( File.open(content_path, 'rb') { |f| f.read } )
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end
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def content_path
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web.files_path + '/' + file_name
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end
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def write_content_to_file
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web.create_files_directory unless File.exists?(web.files_path)
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File.open(self.content_path, 'wb') { |f| f.write(@content) }
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end
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def delete_content_file
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require 'fileutils'
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FileUtils.rm_f(content_path) if File.exists?(content_path)
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end
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end
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