Problem uploading file to database mysql blob field

Hi All,

Please help me ,I need to look into this issue asap, I need to change
the redmine functionality of uploading files to disk to upload them to
database. I tried suggestion on
http://dizzy.co.uk/ruby_on_rails/contents/store-file-uploads-in-database
but no luck , My form is multipart but still getting the error.

Please bare with me I am new to ruby and rails.

Here is the like for my redmine question
http://www.redmine.org/boards/2/topics/7737

I need to change Redmine functionality to upload files directly to
database and not to local filesystem. *

  1. What I think is that I should add a field to “Attachments” table.*
    I did this via this following migration
    class AddFileToAttachments < ActiveRecord::Migration
    def self.up
    add_column :“attachments”, :“file”, :binary, :limit =>10.megabytes
    end end

def self.down

  drop_column :"attachments", :"file"

end

  1. Now I should change the model code to copy the file content into the
    blob.

I updated attachment.rb , just added the line self.file =
@temp_file.read
as I need to read the content of file and put it into database.

def file=(incoming_file)
unless incoming_file.nil?
@temp_file = incoming_file
if @temp_file.size > 0
self.filename = sanitize_filename(@temp_file.original_filename)
self.disk_filename = Attachment.disk_filename(filename)
self.content_type = @temp_file.content_type.to_s.chomp
self.filesize = @temp_file.size
self.file = @temp_file.read
end
end
end

But After doing so I am getting the following error: Anybody please give
some direction

ndefined method `original_filename’ for #String:0x8c09038

RAILS_ROOT: C:/InstantRails/rails_apps/redmine
Application Trace | Framework Trace | Full Trace

app/models/attachment.rb:56:in file=' app/models/attachment.rb:60:infile=’
app/controllers/application.rb:183:in attach_files' app/controllers/application.rb:180:ineach_value’
app/controllers/application.rb:180:in attach_files' app/controllers/projects_controller.rb:195:inadd_file’

vendor/rails/activerecord/lib/active_record/base.rb:2372:in send' vendor/rails/activerecord/lib/active_record/base.rb:2372:inattributes=’
vendor/rails/activerecord/lib/active_record/base.rb:2371:in each' vendor/rails/activerecord/lib/active_record/base.rb:2371:inattributes=’
vendor/rails/activerecord/lib/active_record/base.rb:2141:in initialize' vendor/rails/activerecord/lib/active_record/base.rb:642:innew’
vendor/rails/activerecord/lib/active_record/base.rb:642:in create' vendor/rails/actionpack/lib/action_controller/base.rb:1166:insend’
vendor/rails/actionpack/lib/action_controller/base.rb:1166:in
perform_action_without_filters' vendor/rails/actionpack/lib/action_controller/filters.rb:579:incall_filters’
vendor/rails/actionpack/lib/action_controller/filters.rb:572:in
perform_action_without_benchmark' vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:inperform_action_without_rescue’
C:/InstantRails/ruby/lib/ruby/1.8/benchmark.rb:293:in measure' vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:inperform_action_without_rescue’
vendor/rails/actionpack/lib/action_controller/rescue.rb:201:in
perform_action_without_caching' vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:inperform_action’
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
cache' vendor/rails/activerecord/lib/active_record/query_cache.rb:8:incache’
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in
perform_action' vendor/rails/actionpack/lib/action_controller/base.rb:529:insend’
vendor/rails/actionpack/lib/action_controller/base.rb:529:in
process_without_filters' vendor/rails/actionpack/lib/action_controller/filters.rb:568:inprocess_without_session_management_support’
vendor/rails/actionpack/lib/action_controller/session_management.rb:130:in
process' vendor/rails/actionpack/lib/action_controller/base.rb:389:inprocess’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:149:in
handle_request' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:indispatch’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
synchronize' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:indispatch’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in
dispatch_cgi' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:indispatch’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:76:in
process' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:insynchronize’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
process' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:159:inprocess_client’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
each' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:inprocess_client’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:ininitialize’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
new' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
initialize' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:innew’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:282:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
each' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:128:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/command.rb:212:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:281
vendor/rails/activesupport/lib/active_support/dependencies.rb:503:in
load' vendor/rails/activesupport/lib/active_support/dependencies.rb:503:inload’
vendor/rails/activesupport/lib/active_support/dependencies.rb:355:in
new_constants_in' vendor/rails/activesupport/lib/active_support/dependencies.rb:503:inload’
vendor/rails/railties/lib/commands/servers/mongrel.rb:64
C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
gem_original_require' C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:inrequire’
vendor/rails/activesupport/lib/active_support/dependencies.rb:510:in
require' vendor/rails/activesupport/lib/active_support/dependencies.rb:355:innew_constants_in’
vendor/rails/activesupport/lib/active_support/dependencies.rb:510:in
require' vendor/rails/railties/lib/commands/server.rb:39 C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:ingem_original_require’
C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require’
script/server:3

app/models/attachment.rb:56:in file=' app/models/attachment.rb:60:infile=’
vendor/rails/activerecord/lib/active_record/base.rb:2372:in send' vendor/rails/activerecord/lib/active_record/base.rb:2372:inattributes=’
vendor/rails/activerecord/lib/active_record/base.rb:2371:in each' vendor/rails/activerecord/lib/active_record/base.rb:2371:inattributes=’
vendor/rails/activerecord/lib/active_record/base.rb:2141:in initialize' vendor/rails/activerecord/lib/active_record/base.rb:642:innew’
vendor/rails/activerecord/lib/active_record/base.rb:642:in create' app/controllers/application.rb:183:inattach_files’
app/controllers/application.rb:180:in each_value' app/controllers/application.rb:180:inattach_files’
app/controllers/projects_controller.rb:195:in add_file' vendor/rails/actionpack/lib/action_controller/base.rb:1166:insend’
vendor/rails/actionpack/lib/action_controller/base.rb:1166:in
perform_action_without_filters' vendor/rails/actionpack/lib/action_controller/filters.rb:579:incall_filters’
vendor/rails/actionpack/lib/action_controller/filters.rb:572:in
perform_action_without_benchmark' vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:inperform_action_without_rescue’
C:/InstantRails/ruby/lib/ruby/1.8/benchmark.rb:293:in measure' vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:inperform_action_without_rescue’
vendor/rails/actionpack/lib/action_controller/rescue.rb:201:in
perform_action_without_caching' vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:inperform_action’
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in
cache' vendor/rails/activerecord/lib/active_record/query_cache.rb:8:incache’
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in
perform_action' vendor/rails/actionpack/lib/action_controller/base.rb:529:insend’
vendor/rails/actionpack/lib/action_controller/base.rb:529:in
process_without_filters' vendor/rails/actionpack/lib/action_controller/filters.rb:568:inprocess_without_session_management_support’
vendor/rails/actionpack/lib/action_controller/session_management.rb:130:in
process' vendor/rails/actionpack/lib/action_controller/base.rb:389:inprocess’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:149:in
handle_request' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:indispatch’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
synchronize' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:indispatch’
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in
dispatch_cgi' vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:indispatch’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:76:in
process' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:insynchronize’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
process' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:159:inprocess_client’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
each' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:inprocess_client’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:ininitialize’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
new' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
initialize' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:innew’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:282:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
each' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:128:in
run' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/command.rb:212:inrun’
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:281
vendor/rails/activesupport/lib/active_support/dependencies.rb:503:in
load' vendor/rails/activesupport/lib/active_support/dependencies.rb:503:inload’
vendor/rails/activesupport/lib/active_support/dependencies.rb:355:in
new_constants_in' vendor/rails/activesupport/lib/active_support/dependencies.rb:503:inload’
vendor/rails/railties/lib/commands/servers/mongrel.rb:64
C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
gem_original_require' C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:inrequire’
vendor/rails/activesupport/lib/active_support/dependencies.rb:510:in
require' vendor/rails/activesupport/lib/active_support/dependencies.rb:355:innew_constants_in’
vendor/rails/activesupport/lib/active_support/dependencies.rb:510:in
require' vendor/rails/railties/lib/commands/server.rb:39 C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:ingem_original_require’
C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require’
script/server:3

Request

Parameters:

{“commit”=>“Add”,
“id”=>“saur”,
“attachments”=>{“1”=>{“description”=>“ss”,
“file”=>#<File:C:/DOCUME~1/sauragar/LOCALS~1/Temp/CGI3868-0>}}}

Show session dump


projectslist_files_sort:
:order: asc
:key: filename
:user_id: 1
adminprojects_sort:
:order: asc
:key: name
issuesindex_sort:
:order: desc
:key: id
flash: !map:ActionController::Flash::FlashHash {}

:query:
:project_id: 1
:filters:
tracker_id:
:values:

  • “1”
    :operator: “=”
    status_id:
    :values:
  • “”
    :operator: o

Response

Headers:

{“cookie”=>[],
“Cache-Control”=>“no-cache”}

Thanks & Regards
Saurabh

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