validates :width, :presence => true, :numericality => true, :natural_number => true
validates :height, :presence => true, :numericality => true, :natural_number => true
validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
- validates :md5, :presence => true, :length => {:maximum => 32}
+ validates :md5, :presence => true, :length => {:minimum => 32, :maximum => 32}
before_destroy :destroy_with_file
PictureIO.system_picture_io.delete self.filename
end
- def dext
- self.ext.downcase
+ def supply_default
+ end
+
+ def overwrite
+ end
+
+ def own? roles
+ roles = [roles] unless roles.respond_to?(:each)
+ ad = SystemPicture.get_admin_from_roles roles
+ return false unless ad
+ true
+ end
+
+ def visible? ad
+ true
end
def filename
- "#{self.id}.#{self.dext}"
+ "#{self.id}.#{self.ext}"
end
def mime_type
- "image/#{self.dext}"
+ "image/#{self.ext}"
end
def url
'/system_pictures/' + filename
end
- def data_to_mgk picture_data
- begin
- mgk = Magick::Image.from_blob(picture_data).shift
- rescue
- self.errors.add :base, 'magick failed'
- return false
- end
- mgk
+ def opt_img_tag
+ {:src => self.url, :width => self.width, :height => self.height}
end
- def store(picture_data)
- mgk = data_to_mgk picture_data
- return false unless mgk
+ def tmb_opt_img_tag
+ tw, th = PettanImager.thumbnail_size(self.width, self.height)
+ {:src => self.url, :width => tw, :height => th}
+ end
+
+ def self.default_page_size
+ 25
+ end
+
+ def self.max_page_size
+ 100
+ end
+
+ def self.page prm = nil
+ page = prm.to_i
+ page = 1 if page < 1
+ page
+ end
+
+ def self.page_size prm = self.default_page_size
+ page_size = prm.to_i
+ page_size = self.max_page_size if page_size > self.max_page_size
+ page_size = self.default_page_size if page_size < 1
+ page_size
+ end
+
+ def self.list page = 1, page_size = self.default_page_size
+ opt = {}
+ opt.merge!(self.list_opt)
+ opt.merge!({:limit => page_size, :offset => (page -1) * page_size}) if page_size > 0
+ opt.merge!({:order => 'system_pictures.updated_at desc'})
+ SystemPicture.find(:all, opt)
+ end
+
+ def self.list_opt
+ {}
+ end
+
+ def self.list_json_opt
+ {}
+ end
+
+ def self.show sid, ad
+ opt = {}
+ opt.merge!(self.show_opt)
+ res = SystemPicture.find(sid, opt)
+ raise ActiveRecord::Forbidden unless res.visible?(ad)
+ res
+ end
+
+ def self.show_opt
+ {}
+ end
+
+ def self.show_json_opt
+ {}
+ end
+
+ def store(imager)
+ unless imager
+ self.errors.add :base, 'illegal picture data'
+ return false
+ end
res = false
- self.attributes = {:ext => mgk.format.downcase, :width => mgk.columns, :height => mgk.rows,
- :filesize => mgk.filesize
- }
- self.md5 = Digest::MD5.hexdigest(picture_data)
SystemPicture.transaction do
if res = self.save
- res = PictureIO.system_picture_io.put(picture_data, self.filename)
+ begin
+ res = PictureIO.system_picture_io.put(imager.binary, self.filename)
+ rescue PictureIO::Error
+ res = false
+ self.errors.add :base, I18n.t('picture_io.error')
+ raise ActiveRecord::Rollback
+ end
end
end
res
end
- def self.store(picture_data)
- md5 = Digest::MD5.hexdigest(picture_data)
- sp = SystemPicture.find_by_md5(md5)
- sp = SystemPicture.new() unless sp
- res = sp.store picture_data
+ def self.store(imager)
+ attr = {:ext => imager.ext, :width => imager.width, :height => imager.height, :filesize => imager.filesize, :md5 => imager.md5}
+ sp = SystemPicture.modify_object(imager.md5, attr, 'md5')
+ res = sp.store imager
res ? sp : nil
end