我在一个项目上使用 attachment_fu 很长时间了,一切都很好,但现在我正试图将项目升级到 rails 2.3.3,我遇到了一个让我发疯的奇怪错误。附件(在这种情况下是一个徽标)在创建时正确验证,但在更新时验证不会失败。我已经对其进行了调试,但它未能通过初始验证,但似乎没有引发异常,或者至少没有引发我在控制器中的救援捕获的异常。好像我已经尝试了一切,但无法弄清楚这一点。
控制器:
# POST /tournaments
# POST /tournaments.xml
def create
# Build tournament
@tournament = Tournament.new(params[:tournament].merge(:user_id => current_user.id) )
# Save the uploaded attachments
params[:uploads].each do |upload|
@tournament.documents << Document.new({:uploaded_data => upload[:document]}.merge(:description => upload[:description]))
end unless params[:uploads].nil?
# if supplied save an event logo
@logo = Logo.new({:uploaded_data => params[:logo][:upload_data]}) unless params[:logo].nil? or params[:logo][:upload_data].blank?
@tournament.logo = @logo unless @logo.nil?
respond_to do |format|
begin
Tournament.transaction do
@tournament.logo.save! unless @tournament.logo.nil?
@tournament.save!
end
flash[:notice] = 'Tournament was successfully created.'
format.html { redirect_to tournament_url(@tournament) }
format.xml { head :created, :location => tournament_url(@tournament) }
rescue
flash[:notice] = 'Errors prevented your Tournament from being saved'
format.html { render :action => "new" }
format.xml { render :xml => @tournament.errors, :status => :unprocessable_entity }
end
end
end
# PUT /tournaments/1
# PUT /tournaments/1.xml
def update
@tournament = Tournament.find(params[:id])
@tournament.user_id = session[:orig_user_id]
respond_to do |format|
begin
Tournament.transaction do
# Update Logo if necessary
unless params[:logo][:upload_data].blank?
@tournament.logo.destroy unless @tournament.logo.nil?
@tournament.logo = Logo.new({:uploaded_data => params[:logo][:upload_data]}.merge(:user_id => current_user.id))
end
# Save any uploaded documents
params[:uploads].each do |upload|
@tournament.documents << Document.new({:uploaded_data => upload[:document]}.merge(:description => upload[:description]))
end unless params[:uploads].nil?
# Update Tournamnet Attributes
@tournament.attributes = params[:tournament]
# Save the Tournament
@tournament.save!
end
flash[:notice] = 'Tournament was successfully updated.'
format.html { redirect_to tournament_url(@tournament) }
format.xml { head :ok, :location => tournament_url(@tournament) }
rescue
flash[:notice] = 'Errors prevented your Tournament from being updated'
format.html { render :action => "edit" }
format.xml { render :xml => @tournament.errors, :status => :unprocessable_entity }
end
end
end
标志型号:
class Logo < Asset
validate_on_create :attachment_valid?
has_attachment :content_type => :image,
:storage => :file_system,
:max_size => 4.megabytes,
:resize_to => '810x150>',
:processor => :ImageScience,
:thumbnails => { :thumb => '270x50>' }
def attachment_valid?
content_type = attachment_options[:content_type]
unless content_type.nil? || content_type.include?(self.content_type)
errors.add(:upload_data, " * must be an image file (jpg, gif, or png)")
end
size = attachment_options[:size]
unless size.nil? || size.include?(self.size)
errors.add(:upload_data, "* image must be 4MB or less")
end
end
before_thumbnail_saved do |thumbnail|
record = thumbnail.parent
thumbnail.user_id = record.user_id
thumbnail.listing_id = record.listing_id
end
end
我正在运行以下
导轨 2.3.3
图像科学 1.2.0
谢谢——蒂姆