+
+MuK PGSQL Large Objects
+PGSQL Large Objects Support
+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
+
+
+ Demo
+
+
+
+
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+ demo
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+
+Help and Support
+Feel free to + contact us, if you need any help with your Odoo integration or addiontal + features.
+ +
+