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# -*- coding: utf-8 -*- |
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from AccessControl import Unauthorized |
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from bika.lims import api |
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from bika.lims.interfaces import IAnalysisRequest |
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from bika.lims.interfaces import IBatchBookView |
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from Products.Archetypes.utils import mapply |
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from senaite.core import logger |
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from senaite.core.datamanagers import DataManager |
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from zope.component import adapter |
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@adapter(IAnalysisRequest) |
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class SampleDataManager(DataManager): |
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"""Data Manager for Samples |
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""" |
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@property |
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def fields(self): |
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return api.get_fields(self.context) |
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def is_field_readable(self, field): |
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"""Checks if the field is readable |
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""" |
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return field.checkPermission("get", self.context) |
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def is_field_writeable(self, field): |
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"""Checks if the field is writeable |
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""" |
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return field.checkPermission("set", self.context) |
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def get_field_by_name(self, name): |
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"""Get the field by name |
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""" |
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field = self.fields.get(name) |
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# try to fetch the field w/o the `get` prefix |
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# this might be the case is some listings |
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if field is None: |
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# ensure we do not have the field setter as column |
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name = name.split("get", 1)[-1] |
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field = self.fields.get(name) |
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return field |
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def get(self, name): |
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"""Get sample field |
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""" |
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# get the schema field |
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field = self.get_field_by_name(name) |
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# check if the field exists |
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if field is None: |
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raise AttributeError("Field '{}' not found".format(name)) |
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# Check the permission of the field |
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if not self.is_field_readable(field): |
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raise Unauthorized("Field '{}' not readable!".format(name)) |
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# return the value with the field accessor |
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if hasattr(field, "getAccessor"): |
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accessor = field.getAccessor(self.context) |
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return accessor() |
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else: |
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# Set the value on the field directly |
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return field.get(self.context) |
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def set_analysis_result(self, name, value): |
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"""Handle Batchbook Results |
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:param name: ID of the contained analysis |
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:param value: Result of the Analysis |
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:returns: True if the result was set, otherwise False |
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""" |
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analysis = self.get_analysis_by_id(name) |
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if not analysis: |
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logger.error("Analysis '{}' not found".format(name)) |
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return False |
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fields = api.get_fields(analysis) |
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field = fields.get("Result") |
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# Check the permission of the field |
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if not self.is_field_writeable(field): |
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logger.error("Field '{}' not writeable!".format(name)) |
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return False |
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# set the analysis result with the mutator |
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analysis.setResult(value) |
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analysis.reindexObject() |
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return True |
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def get_analysis_by_id(self, name): |
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"""Get the analysis by ID |
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""" |
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return self.context.get(name) |
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def is_request_from_batchbook(self): |
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"""Checks if the request is coming from the batchbook |
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If this is the case, the `name` does not refer to a field, |
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but to an analysis and the `value` is always the result. |
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:returns: True if the request was sent from the batchbook |
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""" |
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req = api.get_request() |
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view = req.PARENTS[0] |
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return IBatchBookView.providedBy(view) |
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def set(self, name, value): |
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"""Set sample field or analysis result |
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""" |
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# set of updated objects |
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updated_objects = set() |
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# handle batchbook results set |
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if self.is_request_from_batchbook(): |
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success = self.set_analysis_result(name, value) |
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if not success: |
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raise ValueError( |
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"Failed to set analysis result for '%s'" % name) |
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return [self.context] |
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# get the schema field |
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field = self.get_field_by_name(name) |
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if field is None: |
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raise AttributeError("Field '{}' not found".format(name)) |
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# Check the permission of the field |
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if not self.is_field_writeable(field): |
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logger.error("Field '{}' not writeable!".format(name)) |
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return [] |
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# get the field mutator (works only for AT content types) |
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if hasattr(field, "getMutator"): |
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mutator = field.getMutator(self.context) |
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mapply(mutator, value) |
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else: |
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# Set the value on the field directly |
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field.set(self.context, value) |
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updated_objects.add(self.context) |
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# return a unified list of the updated objects |
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return list(updated_objects) |
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