I am unable to insert binary values into a Postgres bytea column using the JDBC version of do_postgres (I'm using JRuby 1.6.7.2 in 1.9 mode). I have an InterviewForm model that I am trying to create records for, which has a formImage column that is a bytea (it's actually a custom Postgres type "ImageT" that wraps bytea). This is the model definition:
class InterviewForm include DataMapper::Resource storage_names[:default] = 'InterviewForm' property :interview_id, String, :field => 'interviewId', :key => true property :form_seq_no, Integer, :field => 'formSeqNo', :key => true property :file_name, String, :field => 'fileName' property :size, Integer property :sha_256_hash, String, :field => 'sha256Hash', :length => 64 property :form_image, Binary, :field => 'formImage' end I tried using the usual DataMapper InterviewForm.create method: require 'open-uri' blob_string = open('http://www.adobe.com/misc/pdfs/sssheep_chptr3.pdf'){|f| f.read} InterviewForm.create(:interview_id => 1, :form_seq_no => 1, :file_name => "foo.pdf" :size => blob_string.size, :sha_256_hash => Digest::SHA256.new.hexdigest(blob_string), :form_image => ::Extlib::ByteArray.new(blob_string)) that initially gave me a validation error - "Form image must be at most 50 characters long," so I added :length => 2000000000 and :lazy => trueproperties to the :form_image property. After that, I got the following error for the same statement: DataObjects::SQLError: ERROR: column "formImage" is of type "ImageT" but expression is of type character varying Hint: You will need to rewrite or cast the expression. I tried all kinds of variations of wrapping the :form_image value in ::Extlib::ByteArray but have not been able to get around this error. Therefore, I decided to drop down into a raw prepared statement: require 'open-uri' blob_string = open('http://www.adobe.com/misc/pdfs/sssheep_chptr3.pdf'){|f| f.read} InterviewForm.repository.adapter.execute('INSERT INTO "InterviewForm" ("interviewId", "formSeqNo", "fileName", "size", "sha256Hash", "formImage") VALUES(?, ?, ?, ?, ?, ?)', 1, 1, "foo.pdf", blob_string.size, Digest::SHA256.new.hexdigest(blob_string), ::Extlib::ByteArray.new(blob_string)) However this also errors out. The error is: DataObjects::SQLError: ERROR: invalid input syntax for type bytea (code: 0, sql state: 22P02, query: INSERT INTO "InterviewForm" ("interviewId", "formSeqNo", "fileName", "size", "sha256Hash", "formImage") VALUES('1', '1', 'foo.pdf', '869245', '34abd7142491c988bd15515ee74ab5b0ef426994477363508c820634a6edc962', '<bunch of binary data>'), uri: ) This error leads me to believe that prepared statements for ByteArrays are not being escaped as I can replicate the above error by just trying to insert a single \ character: InterviewForm.repository.adapter.execute('INSERT INTO "InterviewForm" ("interviewId", "formSeqNo", "fileName", "size", "sha256Hash", "formImage") VALUES(?, ?, ?, ?, ?, ?)', 1, 1, "foo.pdf", blob_string.size, Digest::SHA256.new.hexdigest(blob_string), ::Extlib::ByteArray.new("\\")) If I use the plain prepared statements, am I responsible for escaping the data on my own? What is the easiest way to do that - try and find the right method from the JDBC driver itself? Postgres has some vendor-specific escaping<http://www.postgresql.org/docs/9.0/static/datatype-binary.html#AEN5047> for bytea columns so I'd rather not have to re-invent it myself if possible. My Gemfile looks like this: # Postgres databases gem "pg", "~> 0.14.0", :platforms => :ruby gem "jdbc-postgres", "~> 9.1.901", :platforms => :jruby # Use pre-release (1.3.0.beta) versions of DM due to multi_json dependency issue gem "data_mapper" gem "dm-postgres-adapter", :git => 'git://github.com/datamapper/dm-postgres-adapter.git' gem "dm-do-adapter", :git => 'git://github.com/datamapper/dm-do-adapter.git' gem "dm-core", :git => 'git://github.com/datamapper/dm-core.git' gem "dm-aggregates", :git => 'git://github.com/datamapper/dm-aggregates.git' gem "dm-migrations", :git => 'git://github.com/datamapper/dm-migrations.git' gem "dm-transactions", :git => 'git://github.com/datamapper/dm-transactions.git' gem "dm-serializer", :git => 'git://github.com/datamapper/dm-serializer.git' gem "dm-timestamps", :git => 'git://github.com/datamapper/dm-timestamps.git' gem "dm-validations", :git => 'git://github.com/datamapper/dm-validations.git' gem "dm-types", :git => 'git://github.com/datamapper/dm-types.git' Thanks in advance for any assistance. -- You received this message because you are subscribed to the Google Groups "DataMapper" group. To view this discussion on the web visit https://groups.google.com/d/msg/datamapper/-/PVpGsuFK8IIJ. To post to this group, send email to datamapper@googlegroups.com. To unsubscribe from this group, send email to datamapper+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/datamapper?hl=en.