我一直在項目上使用attachment_fu很長一段時間,一切都很好,但現在正在嘗試將項目升級到rails 2.3.3我遇到了一個奇怪的bug使我抓狂。在這種情況下,附件是一個標誌,在創建時可以正確驗證,但在更新時不會失敗驗證。我已經調試過它,並且初始驗證失敗,但似乎沒有拋出異常,或者至少沒有一個被我在控制器中救出的異常。似乎我已經嘗試了一切,但無法弄清楚這一點。Attachment_fu無法驗證更新
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
標識型號:
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
我運行以下
的Rails 2.3.3
image_science 1.2.0
ŧ漢克斯 --Tim
這似乎是最好的方式去 – triendeau 2009-09-16 13:42:15
通過在我的自定義驗證中引發RecordInvalid異常並將徽標的分配移動到tournamnet到事務塊,我能夠得到這個工作。謝謝您的幫助。 – triendeau 2009-10-04 14:41:55