+
+MuK Large Objects Field
+PGSQL Large Objects Support for Fields
++ MuK IT GmbH - www.mukit.at +
+
+
+
+
+ Overview
+
+
+
+ + Provides a field to store bytes as PostgreSQL large objects. + PostgreSQL offers support for large objects, which provide + stream-style access to user data that is stored in a special + large-object structure. They are useful with data values too large to + be manipulated conveniently as a whole. +
+Psycopg2 for Python
+
+ Psycopg allows access to the large object using the
+ lobject
+ class. Objects are generated using the
+ connection.lobject()
+ factory method. Data can be retrieved either as bytes or as Unicode
+ strings.
+
+ Psycopg large object support efficient import/export with file system
+ files using the
+ lo_import()
+ and
+ lo_export()
+ libpq functions.
+
+ Changed in version 2.6: added support for large objects greated than + 2GB. Note that the support is enabled only if all the following + conditions are verified: +
+-
+
- the Python build is 64 bits; +
- the extension was built against at least libpq 9.3; +
- + the server version is at least PostgreSQL 9.3 (server_version must + be >= 90300). + +
+ If Psycopg was built with 64 bits large objects support (i.e. the
+ first two contidions above are verified), the
+ psycopg2.__version__
+ constant will contain the lo64 flag. If any of the contition is not
+ met several lobject methods will fail if the arguments exceed 2GB.
+
+
+from odoo.addons.muk_fields_lobject.fields.lobject import LargeObject
+
+class LargeObjectModel(models.Model):
+
+ data_content = LargeObject(string="Data")
+
+ @api.multi
+ def data(self):
+ for record in self:
+ bytes = record.data_content
+ oid = record.with_context({'oid': True}).data_content
+ size = record.with_context({'bin_size': True}).data_content
+ stream = record.with_context({'stream': True}).data_content
+
+
+
+
+Our Services
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+ Help and Support
++ Feel free to contact us, if you need any help with your Odoo integration or + addiontal features. +
+ +
+