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<section class="oe_container">
<div class="oe_row oe_spaced">
<h2 class="oe_slogan">MuK Large Objects Field</h2>
<h3 class="oe_slogan">PGSQL Large Objects Support for Fields</h3>
<h4 class="oe_slogan" style="font-size: 23px;">
MuK IT GmbH - www.mukit.at
</h4>
</div>
</section>
<section class="oe_container">
<div class="oe_row oe_spaced">
<div class="text-justify" style="max-width: 84%; margin: 16px 8%;">
<h3 class="oe_slogan">Overview</h3>
<div class="oe_mt32" style="padding-bottom: 10px; text-align: justify;">
<p>
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.
</p>
<h5 style="padding-top: 10px;">Psycopg2 for Python</h5>
<p>
Psycopg allows access to the large object using the
<code>lobject</code>
class. Objects are generated using the
<code>connection.lobject()</code>
factory method. Data can be retrieved either as bytes or as Unicode
strings.
</p>
<p>
Psycopg large object support efficient import/export with file system
files using the
<code>lo_import()</code>
and
<code>lo_export()</code>
libpq functions.
</p>
<p>
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:
</p>
<ul>
<li>the Python build is 64 bits;</li>
<li>the extension was built against at least libpq 9.3;</li>
<li>
the server version is at least PostgreSQL 9.3 (server_version must
be >= 90300).
</li>
</ul>
<p>
If Psycopg was built with 64 bits large objects support (i.e. the
first two contidions above are verified), the
<code>psycopg2.__version__</code>
constant will contain the lo64 flag. If any of the contition is not
met several lobject methods will fail if the arguments exceed 2GB.
</p>
</div>
<pre>
<code>
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:
base64 = record.data_content
oid = record.with_context({'oid': True}).data_content
size = record.with_context({'bin_size': True}).data_content
bytes = record.with_context({'bytes': True}).data_content
stream = record.with_context({'stream': True}).data_content
</code>
</pre>
</div>
</div>
</section>
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>
Odoo <br />Integration
</h3>
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<h3 class="oe_slogan">Help and Support</h3>
<h5 class="oe_slogan" style="font-size: 20px;">
Feel free to contact us, if you need any help with your Odoo integration or
addiontal features.
</h5>
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class="mx-auto center-block"
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</section>