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|
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<a href="Gnumed-module.html">Package Gnumed</a> ::
<a href="Gnumed.pycommon-module.html">Package pycommon</a> ::
<a href="Gnumed.pycommon.gmBusinessDBObject-module.html">Module gmBusinessDBObject</a> ::
Class cBusinessDBObject
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class cBusinessDBObject</h1><p class="nomargin-top"><span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject">source code</a></span></p>
<pre class="base-tree">
object --+
|
<strong class="uidshort">cBusinessDBObject</strong>
</pre>
<dl><dt>Known Subclasses:</dt>
<dd>
<ul class="subclass-list">
<li><a href="Gnumed.business.gmDocuments.cDocument-class.html">business.gmDocuments.cDocument</a></li><li>, <a href="Gnumed.business.gmDocuments.cDocumentPart-class.html">business.gmDocuments.cDocumentPart</a></li><li>, <a href="Gnumed.business.gmDocuments.cDocumentType-class.html">business.gmDocuments.cDocumentType</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cAddress-class.html">business.gmDemographicRecord.cAddress</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cCommChannel-class.html">business.gmDemographicRecord.cCommChannel</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cIdentityTag-class.html">business.gmDemographicRecord.cIdentityTag</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cOrg-class.html">business.gmDemographicRecord.cOrg</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cOrgCommChannel-class.html">business.gmDemographicRecord.cOrgCommChannel</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cPatientAddress-class.html">business.gmDemographicRecord.cPatientAddress</a></li><li>, <a href="Gnumed.business.gmDemographicRecord.cTagImage-class.html">business.gmDemographicRecord.cTagImage</a></li><li>, <a href="Gnumed.business.gmClinNarrative.cNarrative-class.html">business.gmClinNarrative.cNarrative</a></li><li>, <a href="Gnumed.business.gmAllergy.cAllergy-class.html">business.gmAllergy.cAllergy</a></li><li>, <a href="Gnumed.business.gmAllergy.cAllergyState-class.html">business.gmAllergy.cAllergyState</a></li><li>, <a href="Gnumed.business.gmStaff.cStaff-class.html">business.gmStaff.cStaff</a></li><li>, <a href="Gnumed.business.gmBilling.cBill-class.html">business.gmBilling.cBill</a></li><li>, <a href="Gnumed.business.gmBilling.cBillItem-class.html">business.gmBilling.cBillItem</a></li><li>, <a href="Gnumed.business.gmBilling.cBillable-class.html">business.gmBilling.cBillable</a></li><li>, <a href="Gnumed.business.gmProviderInbox.cDynamicHint-class.html">business.gmProviderInbox.cDynamicHint</a></li><li>, <a href="Gnumed.business.gmProviderInbox.cInboxMessage-class.html">business.gmProviderInbox.cInboxMessage</a></li><li>, <a href="Gnumed.business.gmFamilyHistory.cFamilyHistory-class.html">business.gmFamilyHistory.cFamilyHistory</a></li><li>, <a href="Gnumed.business.gmPathLab.cLabRequest-class.html">business.gmPathLab.cLabRequest</a></li><li>, <a href="Gnumed.business.gmPathLab.cLabResult-class.html">business.gmPathLab.cLabResult</a></li><li>, <a href="Gnumed.business.gmPathLab.cMeasurementType-class.html">business.gmPathLab.cMeasurementType</a></li><li>, <a href="Gnumed.business.gmPathLab.cMetaTestType-class.html">business.gmPathLab.cMetaTestType</a></li><li>, <a href="Gnumed.business.gmPathLab.cTestOrg-class.html">business.gmPathLab.cTestOrg</a></li><li>, <a href="Gnumed.business.gmPathLab.cTestResult-class.html">business.gmPathLab.cTestResult</a></li><li>, <a href="Gnumed.business.gmPathLab.cUnifiedTestType-class.html">business.gmPathLab.cUnifiedTestType</a></li><li>, <a href="Gnumed.business.gmCoding.cGenericCode-class.html">business.gmCoding.cGenericCode</a></li><li>, <a href="Gnumed.business.gmCoding.cGenericLinkedCode-class.html">business.gmCoding.cGenericLinkedCode</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cEncounter-class.html">business.gmEMRStructItems.cEncounter</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cEpisode-class.html">business.gmEMRStructItems.cEpisode</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cHealthIssue-class.html">business.gmEMRStructItems.cHealthIssue</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cHospitalStay-class.html">business.gmEMRStructItems.cHospitalStay</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cPerformedProcedure-class.html">business.gmEMRStructItems.cPerformedProcedure</a></li><li>, <a href="Gnumed.business.gmEMRStructItems.cProblem-class.html">business.gmEMRStructItems.cProblem</a></li><li>, <a href="Gnumed.business.gmOrganization.cOrg-class.html">business.gmOrganization.cOrg</a></li><li>, <a href="Gnumed.business.gmOrganization.cOrgUnit-class.html">business.gmOrganization.cOrgUnit</a></li> </ul>
</dd></dl>
<hr />
<pre class="literalblock">
Represents business objects in the database.
Rules:
- instances ARE ASSUMED TO EXIST in the database
- PK construction (aPK_obj): DOES verify its existence on instantiation
(fetching data fails)
- Row construction (row): allowed by using a dict of pairs
field name: field value (PERFORMANCE improvement)
- does NOT verify FK target existence
- does NOT create new entries in the database
- does NOT lazy-fetch fields on access
Class scope SQL commands and variables:
<_cmd_fetch_payload>
- must return exactly one row
- where clause argument values are expected
in self.pk_obj (taken from __init__(aPK_obj))
- must return xmin of all rows that _cmds_store_payload
will be updating, so views must support the xmin columns
of their underlying tables
<_cmds_store_payload>
- one or multiple "update ... set ... where xmin_* = ..." statements
which actually update the database from the data in self._payload,
- the last query must refetch at least the XMIN values needed to detect
concurrent updates, their field names had better be the same as
in _cmd_fetch_payload,
- when subclasses tend to live a while after save_payload() was
called and they support computed fields (say, _(some_column)
you need to return *all* columns (see cEncounter)
<_updatable_fields>
- a list of fields available for update via object['field']
A template for new child classes:
*********** start of template ***********
#------------------------------------------------------------
from Gnumed.pycommon import gmBusinessDBObject
from Gnumed.pycommon import gmPG2
#============================================================
# short description
#------------------------------------------------------------
# use plural form, search-replace get_XXX
_SQL_get_XXX = u"""
SELECT *, (xmin AS xmin_XXX)
FROM XXX.v_XXX
WHERE %s
"""
class cXxxXxx(gmBusinessDBObject.cBusinessDBObject):
"""Represents ..."""
_cmd_fetch_payload = _SQL_get_XXX % u"pk_XXX = %s"
_cmds_store_payload = [
u"""
UPDATE xxx.xxx SET -- typically the underlying table name
xxx = %(xxx)s, -- typically "table_col = %(view_col)s"
xxx = gm.nullify_empty_string(%(xxx)s)
WHERE
pk = %(pk_XXX)s
AND
xmin = %(xmin_XXX)s
RETURNING
pk as pk_XXX,
xmin as xmin_XXX
"""
]
# view columns that can be updated:
_updatable_fields = [
u'xxx',
u'xxx'
]
#--------------------------------------------------------
def format(self):
return u'%s' % self
#------------------------------------------------------------
def get_XXX(order_by=None):
if order_by is None:
order_by = u'true'
else:
order_by = u'true ORDER BY %s' % order_by
cmd = _SQL_get_XXX % order_by
rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = True)
return [ cXxxXxx(row = {'data': r, 'idx': idx, 'pk_field': 'xxx'}) for r in rows ]
#------------------------------------------------------------
def create_xxx(xxx=None, xxx=None):
args = {
u'xxx': xxx,
u'xxx': xxx
}
cmd = u"""
INSERT INTO xxx.xxx (
xxx,
xxx,
xxx
) VALUES (
%(xxx)s,
%(xxx)s,
gm.nullify_empty_string(%(xxx)s)
)
RETURNING pk
"""
rows, idx = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True, get_col_idx = False)
return cXxxXxx(aPK_obj = rows[0]['pk'])
#------------------------------------------------------------
def delete_xxx(xxx=None):
args = {'pk': xxx}
cmd = u"DELETE FROM xxx.xxx WHERE pk = %(pk)s"
gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
return True
#------------------------------------------------------------
*********** end of template ***********
</pre>
<!-- ==================== INSTANCE METHODS ==================== -->
<a name="section-InstanceMethods"></a>
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cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Instance Methods</span></td>
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<span class="summary-type"> </span>
</td><td class="summary">
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<td><span class="summary-sig"><a name="__del__"></a><span class="summary-sig-name">__del__</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__del__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
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<td><span class="summary-sig"><a name="__getitem__"></a><span class="summary-sig-name">__getitem__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">attribute</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__getitem__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="Gnumed.pycommon.gmBusinessDBObject.cBusinessDBObject-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">aPK_obj</span>=<span class="summary-sig-default">None</span>,
<span class="summary-sig-arg">row</span>=<span class="summary-sig-default">None</span>)</span><br />
Init business object.</td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__init__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__setitem__"></a><span class="summary-sig-name">__setitem__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">attribute</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__setitem__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="Gnumed.pycommon.gmBusinessDBObject.cBusinessDBObject-class.html#__str__" class="summary-sig-name">__str__</a>(<span class="summary-sig-arg">self</span>)</span><br />
str(x)</td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__str__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="fields_as_dict"></a><span class="summary-sig-name">fields_as_dict</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">date_format</span>=<span class="summary-sig-default"><code class="variable-quote">'</code><code class="variable-string">%c</code><code class="variable-quote">'</code></span>,
<span class="summary-sig-arg">none_string</span>=<span class="summary-sig-default"><code class="variable-quote">u'</code><code class="variable-string"></code><code class="variable-quote">'</code></span>,
<span class="summary-sig-arg">escape_style</span>=<span class="summary-sig-default">None</span>,
<span class="summary-sig-arg">bool_strings</span>=<span class="summary-sig-default">None</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.fields_as_dict">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="format"></a><span class="summary-sig-name">format</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.format">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="get_fields"></a><span class="summary-sig-name">get_fields</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.get_fields">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="get_patient"></a><span class="summary-sig-name">get_patient</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.get_patient">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="get_updatable_fields"></a><span class="summary-sig-name">get_updatable_fields</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.get_updatable_fields">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="is_modified"></a><span class="summary-sig-name">is_modified</span>(<span class="summary-sig-arg">self</span>)</span></td>
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<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.is_modified">source code</a></span>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="refetch_payload"></a><span class="summary-sig-name">refetch_payload</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">ignore_changes</span>=<span class="summary-sig-default">False</span>)</span><br />
Fetch field values from backend.</td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.refetch_payload">source code</a></span>
</td>
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</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="same_payload"></a><span class="summary-sig-name">same_payload</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">another_object</span>=<span class="summary-sig-default">None</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.same_payload">source code</a></span>
</td>
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</table>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="save"></a><span class="summary-sig-name">save</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">conn</span>=<span class="summary-sig-default">None</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.save">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="Gnumed.pycommon.gmBusinessDBObject.cBusinessDBObject-class.html#save_payload" class="summary-sig-name">save_payload</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">conn</span>=<span class="summary-sig-default">None</span>)</span><br />
Store updated values (if any) in database.</td>
<td align="right" valign="top">
<span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.save_payload">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__delattr__</code>,
<code>__format__</code>,
<code>__getattribute__</code>,
<code>__hash__</code>,
<code>__new__</code>,
<code>__reduce__</code>,
<code>__reduce_ex__</code>,
<code>__repr__</code>,
<code>__setattr__</code>,
<code>__sizeof__</code>,
<code>__subclasshook__</code>
</p>
</td>
</tr>
</table>
<!-- ==================== PROPERTIES ==================== -->
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<span class="table-header">Properties</span></td>
</tr>
<tr>
<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
</p>
</td>
</tr>
</table>
<!-- ==================== METHOD DETAILS ==================== -->
<a name="section-MethodDetails"></a>
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<span class="table-header">Method Details</span></td>
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</table>
<a name="__init__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">aPK_obj</span>=<span class="sig-default">None</span>,
<span class="sig-arg">row</span>=<span class="sig-default">None</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__init__">source code</a></span>
</td>
</tr></table>
<pre class="literalblock">
Init business object.
Call from child classes:
super(cChildClass, self).__init__(aPK_obj = aPK_obj, row = row)
</pre>
<dl class="fields">
<dt>Overrides:
object.__init__
</dt>
</dl>
</td></tr></table>
</div>
<a name="__str__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
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<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__str__</span>(<span class="sig-arg">self</span>)</span>
<br /><em class="fname">(Informal representation operator)</em>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.__str__">source code</a></span>
</td>
</tr></table>
<p>str(x)</p>
<dl class="fields">
<dt>Overrides:
object.__str__
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
</td></tr></table>
</div>
<a name="save_payload"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">save_payload</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">conn</span>=<span class="sig-default">None</span>)</span>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="Gnumed.pycommon.gmBusinessDBObject-pysrc.html#cBusinessDBObject.save_payload">source code</a></span>
</td>
</tr></table>
<pre class="literalblock">
Store updated values (if any) in database.
Optionally accepts a pre-existing connection
- returns a tuple (<True|False>, <data>)
- True: success
- False: an error occurred
* data is (error, message)
* for error meanings see gmPG2.run_rw_queries()
</pre>
<dl class="fields">
</dl>
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</div>
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