bika.lims.content.calculation.Calculation.getCalculationDependents() - Code Metrics - Inspection of "Fix performance of analysis dependency calculation..." - senaite/senaite.core - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — 2.x ( 3a5aed...187ea7 )

by Jordi

created 2025-07-22 14:24 UTC

Calculation.getCalculationDependents() A

↳ Parent: bika.lims.content.calculation

Complexity

Conditions

Size

Total Lines	19
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	11
dl	0
loc	19
rs	9.3333
c	0
b	0
f	0
cc	5
nop	2

# -*- coding: utf-8 -*-
#
# This file is part of SENAITE.CORE.
#
# SENAITE.CORE is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright 2018-2025 by it's authors.
# Some rights reserved, see README and LICENSE.

import importlib
import inspect
import math
import re

import transaction
from AccessControl import ClassSecurityInfo
from bika.lims import api
from bika.lims import bikaMessageFactory as _
from bika.lims.api import get_object_by_uid
from bika.lims.browser.fields import InterimFieldsField
from bika.lims.browser.fields.uidreferencefield import UIDReferenceField
from bika.lims.browser.fields.uidreferencefield import get_backreferences
from bika.lims.browser.widgets import RecordsWidget as BikaRecordsWidget
from bika.lims.config import PROJECTNAME
from bika.lims.content.bikaschema import BikaSchema
from bika.lims.interfaces import IDeactivable
from bika.lims.interfaces.calculation import ICalculation
from Products.Archetypes.atapi import BaseFolder
from Products.Archetypes.atapi import Schema
from Products.Archetypes.atapi import TextAreaWidget
from Products.Archetypes.atapi import TextField
from Products.Archetypes.atapi import registerType
from Products.ATContentTypes.lib.historyaware import HistoryAwareMixin
from Products.CMFCore.utils import getToolByName
from Products.CMFCore.WorkflowCore import WorkflowException
from Products.CMFPlone.utils import safe_unicode
from senaite.core import logger
from senaite.core.browser.fields.records import RecordsField
from senaite.core.browser.widgets.referencewidget import ReferenceWidget
from senaite.core.catalog import SETUP_CATALOG
from zope.interface import implements

schema = BikaSchema.copy() + Schema((

    InterimFieldsField(
        'InterimFields',
        widget=BikaRecordsWidget(
            label=_("Calculation Interim Fields"),
            description=_(
                "Define interim fields such as vessel mass, dilution factors, "
                "should your calculation require them. The field title "
                "specified here will be used as column headers and field "
                "descriptors where the interim fields are displayed. If "
                "'Apply wide' is enabled the field will be shown in a "
                "selection box on the top of the worksheet, allowing to apply "
                "a specific value to all the corresponding fields on the "
                "sheet."),
        )
    ),

    # hidden field
    UIDReferenceField(
        "DependentServices",
        required=1,
        multiValued=1,
        relationship="CalculationDependentServices",
        allowed_types=("AnalysisService",),
        widget=ReferenceWidget(
            visible=False,
            label=_(
                "label_calculation_dependentservices",
                default="Dependent services"),
            description=_(
                "description_calculation_dependentservices",
                default="Dependent services of this calculation"),
            catalog=SETUP_CATALOG,
            query={
                "is_active": True,
                "sort_on": "sortable_title",
                "sort_order": "ascending"
            },
        ),
    ),

    RecordsField(
        'PythonImports',
        required=False,
        subfields=('module', 'function'),
        subfield_labels={'module': _('Module'), 'function': _('Function')},
        subfield_readonly={'module': False, 'function': False},
        subfield_types={'module': 'string', 'function': 'string'},
        default=[
            {'module': 'math', 'function': 'ceil'},
            {'module': 'math', 'function': 'floor'},
        ],
        subfield_validators={
            'module': 'importvalidator',
        },
        widget=BikaRecordsWidget(
            label=_("Additional Python Libraries"),
            description=_(
                "If your formula needs a special function from an external "
                "Python library, you can import it here. E.g. if you want to "
                "use the 'floor' function from the Python 'math' module, "
                "you add 'math' to the Module field and 'floor' to the "
                "function field. The equivalent in Python would be 'from math "
                "import floor'. In your calculation you could use then "
                "'floor([Ca] + [Mg])'. "
            ),
            allowDelete=True,
        ),
    ),

    TextField(
        'Formula',
        required=True,
        validators=('formulavalidator',),
        default_content_type='text/plain',
        allowable_content_types=('text/plain',),
        widget=TextAreaWidget(
            label=_("Calculation Formula"),
            description=_(
                "<p>The formula you type here will be dynamically calculated "
                "when an analysis using this calculation is displayed.</p>"
                "<p>To enter a Calculation, use standard maths operators,  "
                "+ - * / ( ), and all keywords available, both from other "
                "Analysis Services and the Interim Fields specified here, "
                "as variables. Enclose them in square brackets [ ].</p>"
                "<p>E.g, the calculation for Total Hardness, the total of "
                "Calcium (ppm) and Magnesium (ppm) ions in water, is entered "
                "as [Ca] + [Mg], where Ca and MG are the keywords for those "
                "two Analysis Services.</p>"),
        )
    ),

    RecordsField(
        'TestParameters',
        required=False,
        subfields=('keyword', 'value'),
        subfield_labels={'keyword': _('Keyword'), 'value': _('Value')},
        subfield_readonly={'keyword': True, 'value': False},
        subfield_types={'keyword': 'string', 'value': 'float'},
        default=[{'keyword': '', 'value': 0}],
        widget=BikaRecordsWidget(
            label=_("Test Parameters"),
            description=_("To test the calculation, enter values here for all "
                          "calculation parameters.  This includes Interim "
                          "fields defined above, as well as any services that "
                          "this calculation depends on to calculate results."),
            allowDelete=False,
        ),
    ),

    TextField(
        'TestResult',
        default_content_type='text/plain',
        allowable_content_types=('text/plain',),
        widget=TextAreaWidget(
            label=_('Test Result'),
            description=_("The result after the calculation has taken place "
                          "with test values.  You will need to save the "
                          "calculation before this value will be calculated."),
        )
    ),

))

schema['title'].widget.visible = True
schema['description'].widget.visible = True


class Calculation(BaseFolder, HistoryAwareMixin):
    """Calculation for Analysis Results
    """
    implements(ICalculation, IDeactivable)

    security = ClassSecurityInfo()
    displayContentsTab = False
    schema = schema


    _at_rename_after_creation = True

    def _renameAfterCreation(self, check_auto_id=False):
        from senaite.core.idserver import renameAfterCreation
        renameAfterCreation(self)

    def setInterimFields(self, value):
        new_value = []

        for x in range(len(value)):
            row = dict(value[x])
            keys = row.keys()
            if 'value' not in keys:
                row['value'] = 0
            new_value.append(row)

        # extract the keywords from the new calculation interims
        calculation_interim_keys = map(lambda i: i.get("keyword"), value)

        # update all service interims
        for service in self.getCalculationDependents():
            # get the interims of the dependent service
            service_interims = service.getInterimFields()
            # extract the keywords from the service interims
            service_interim_keys = map(lambda i: i.get("keyword"),
                                       service_interims)
            # sync new interims from the calculation -> service
            new_interims = set(calculation_interim_keys).difference(
                set(service_interim_keys))
            for key in new_interims:
                new_interim = value[calculation_interim_keys.index(key)]
                service_interims.append(new_interim)
            if new_interims:
                service.setInterimFields(service_interims)

        self.getField('InterimFields').set(self, new_value)

    def setFormula(self, Formula=None):
        """Set the Dependent Services from the text of the calculation Formula
        """
        bsc = getToolByName(self, 'senaite_catalog_setup')
        if Formula is None:
            self.setDependentServices(None)
            self.getField('Formula').set(self, Formula)
        else:
            keywords = re.compile(r"\[([^.^\]]+)\]").findall(Formula)
            brains = bsc(portal_type='AnalysisService',
                         getKeyword=keywords)
            services = [brain.getObject() for brain in brains]
            self.getField('DependentServices').set(self, services)
            self.getField('Formula').set(self, Formula)

    def getMinifiedFormula(self):
        """Return the current formula value as text.
        The result will have newlines and additional spaces stripped out.
        """
        value = " ".join(self.getFormula().splitlines())
        return value

    def getCalculationDependencies(self, flat=False, deps=None):
        """ Recursively calculates all dependencies of this calculation.
            The return value is dictionary of dictionaries (of dictionaries...)

            {service_UID1:
                {service_UID2:
                    {service_UID3: {},
                     service_UID4: {},
                    },
                },
            }

            set flat=True to get a simple list of AnalysisService objects
        """
        if deps is None:
            deps = [] if flat is True else {}

        def get_fetched(deps):
            if isinstance(deps, list):
                return map(api.get_uid, deps)
            if isinstance(deps, dict):
                fetched = deps.keys()
                for value in deps.values():
                    fetched.extend(get_fetched(value))
                return fetched
            return []

        # List of service uids that have been grabbed already. This is used to
        # prevent an infinite recursion error when the formula includes the
        # Keyword of the Service that includes the Calculation
        fetched = get_fetched(deps)

        for service in self.getDependentServices():
            if api.get_uid(service) in fetched:
                # Processed already. Omit to prevent recursion
                continue

            if flat:
                deps.append(service)
            else:
                deps[service.UID()] = {}

            calc = service.getCalculation()
            if calc:
                calc.getCalculationDependencies(flat, deps)

        if flat:
            # Remove duplicates
            deps = list(set(deps))

        return deps

    def getCalculationDependents(self, deps=None):
        """Return a flat list of services who depend on this calculation.

        This refers only to services who's Calculation UIDReferenceField have
        the value set to point to this calculation.

        It has nothing to do with the services referenced in the calculation's
        Formula.
        """
        if deps is None:
            deps = []
        backrefs = get_backreferences(self, "AnalysisServiceCalculation")
        services = map(get_object_by_uid, backrefs)
        for service in services:
            calc = service.getCalculation()
            if calc and calc.UID() != self.UID():
                calc.getCalculationDependents(deps)
            deps.append(service)
        return deps

    def setTestParameters(self, form_value):
        """This is called from the objectmodified subscriber, to ensure
        correct population of the test-parameters field.
        It collects Keywords for all services that are direct dependencies of
        this calculatioin, and all of this calculation's InterimFields,
        and gloms them together.
        """
        params = []

        # Set default/existing values for InterimField keywords
        for interim in self.getInterimFields():
            keyword = interim.get('keyword')
            ex = [x.get('value') for x in form_value if
                  x.get('keyword') == keyword]
            params.append({'keyword': keyword,
                           'value': ex[0] if ex else interim.get('value')})
        # Set existing/blank values for service keywords
        for service in self.getDependentServices():
            keyword = service.getKeyword()
            ex = [x.get('value') for x in form_value if
                  x.get('keyword') == keyword]
            params.append({'keyword': keyword,
                           'value': ex[0] if ex else ''})
        self.Schema().getField('TestParameters').set(self, params)

    # noinspection PyUnusedLocal
    def setTestResult(self, form_value):
        """Calculate formula with TestParameters and enter result into
         TestResult field.
        """
        # Create mapping from TestParameters
        mapping = {x['keyword']: x['value'] for x in self.getTestParameters()}
        # Gather up and parse formula
        formula = self.getMinifiedFormula()
        test_result_field = self.Schema().getField('TestResult')

        # Flush the TestResult field and return
        if not formula:
            return test_result_field.set(self, "")

        formula = formula.replace('[', '{').replace(']', '}').replace('  ', '')
        result = 'Failure'

        try:
            formula = formula.format(**mapping)
            result = eval(formula, self._getGlobals())
        except TypeError as e:
            # non-numeric arguments in interim mapping?
            result = "TypeError: {}".format(str(e.args[0]))
        except ZeroDivisionError as e:
            result = "Division by 0: {}".format(str(e.args[0]))
        except KeyError as e:
            result = "Key Error: {}".format(str(e.args[0]))
        except ImportError as e:
            result = "Import Error: {}".format(str(e.args[0]))
        except Exception as e:
            result = "Unspecified exception: {}".format(str(e.args[0]))
        test_result_field.set(self, str(result))

    def _getGlobals(self, **kwargs):
        """Return the globals dictionary for the formula calculation
        """
        # Default globals
        globs = {
            "__builtins__": None,
            "all": all,
            "any": any,
            "bool": bool,
            "chr": chr,
            "cmp": cmp,

            "complex": complex,
            "divmod": divmod,
            "enumerate": enumerate,
            "float": float,
            "format": format,
            "frozenset": frozenset,
            "hex": hex,
            "int": int,
            "len": len,
            "list": list,
            "long": long,

            "math": math,
            "max": max,
            "min": min,
            "oct": oct,
            "ord": ord,
            "pow": pow,
            "range": range,
            "reversed": reversed,
            "round": round,
            "str": str,
            "sum": sum,
            "tuple": tuple,
            "xrange": xrange,

        }
        # Update with keyword arguments
        globs.update(kwargs)
        # Update with additional Python libraries
        for imp in self.getPythonImports():
            mod = imp["module"]
            func = imp["function"]
            member = self._getModuleMember(mod, func)
            if member is None:
                raise ImportError(
                    "Could not find member {} of module {}".format(
                        func, mod))
            globs[func] = member
        return globs

    def _getModuleMember(self, dotted_name, member):
        """Get the member object of a module.

        :param dotted_name: The dotted name of the module, e.g. 'scipy.special'
        :type dotted_name: string
        :param member: The name of the member function, e.g. 'gammaincinv'
        :type member: string
        :returns: member object or None
        """
        try:
            mod = importlib.import_module(dotted_name)
        except ImportError as e:
            logger.error("Cannot import module %s: %s" % (dotted_name, str(e)))
            return None

        members = dict(inspect.getmembers(mod))
        return members.get(member)

    def workflow_script_activate(self):
        pu = getToolByName(self, 'plone_utils')
        # A calculation cannot be re-activated if services it depends on
        # are deactivated.
        services = self.getDependentServices()
        inactive_services = []
        for service in services:
            if not api.is_active(service):
                inactive_services.append(service.Title())
        if inactive_services:
            msg = _("Cannot activate calculation, because the following "
                    "service dependencies are inactive: ${inactive_services}",
                    mapping={'inactive_services': safe_unicode(
                        ", ".join(inactive_services))})
            pu.addPortalMessage(msg, 'error')
            transaction.get().abort()
            raise WorkflowException

    def workflow_script_deactivate(self):
        bsc = getToolByName(self, 'senaite_catalog_setup')
        pu = getToolByName(self, 'plone_utils')
        # A calculation cannot be deactivated if active services are using it.
        services = bsc(portal_type="AnalysisService", is_active=True)
        calc_services = []
        for service in services:
            service = service.getObject()
            calc = service.getCalculation()
            if calc and calc.UID() == self.UID():
                calc_services.append(service.Title())
        if calc_services:
            msg = _(
                'Cannot deactivate calculation, because it is in use by the '
                'following services: ${calc_services}',
                mapping={
                    'calc_services': safe_unicode(", ".join(calc_services))})
            pu.addPortalMessage(msg, 'error')
            transaction.get().abort()
            raise WorkflowException


registerType(Calculation, PROJECTNAME)


1			# -- coding: utf-8 --
2			#
3			# This file is part of SENAITE.CORE.
4			#
5			# SENAITE.CORE is free software: you can redistribute it and/or modify it under
6			# the terms of the GNU General Public License as published by the Free Software
7			# Foundation, version 2.
8			#
9			# This program is distributed in the hope that it will be useful, but WITHOUT
10			# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11			# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
12			# details.
13			#
14			# You should have received a copy of the GNU General Public License along with
15			# this program; if not, write to the Free Software Foundation, Inc., 51
16			# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17			#
18			# Copyright 2018-2025 by it's authors.
19			# Some rights reserved, see README and LICENSE.
20
21			import importlib
22			import inspect
23			import math
24			import re
25
26			import transaction
27			from AccessControl import ClassSecurityInfo
28			from bika.lims import api
29			from bika.lims import bikaMessageFactory as _
30			from bika.lims.api import get_object_by_uid
31			from bika.lims.browser.fields import InterimFieldsField
32			from bika.lims.browser.fields.uidreferencefield import UIDReferenceField
33			from bika.lims.browser.fields.uidreferencefield import get_backreferences
34			from bika.lims.browser.widgets import RecordsWidget as BikaRecordsWidget
35			from bika.lims.config import PROJECTNAME
36			from bika.lims.content.bikaschema import BikaSchema
37			from bika.lims.interfaces import IDeactivable
38			from bika.lims.interfaces.calculation import ICalculation
39			from Products.Archetypes.atapi import BaseFolder
40			from Products.Archetypes.atapi import Schema
41			from Products.Archetypes.atapi import TextAreaWidget
42			from Products.Archetypes.atapi import TextField
43			from Products.Archetypes.atapi import registerType
44			from Products.ATContentTypes.lib.historyaware import HistoryAwareMixin
45			from Products.CMFCore.utils import getToolByName
46			from Products.CMFCore.WorkflowCore import WorkflowException
47			from Products.CMFPlone.utils import safe_unicode
48			from senaite.core import logger
49			from senaite.core.browser.fields.records import RecordsField
50			from senaite.core.browser.widgets.referencewidget import ReferenceWidget
51			from senaite.core.catalog import SETUP_CATALOG
52			from zope.interface import implements
53
54			schema = BikaSchema.copy() + Schema((
55
56			InterimFieldsField(
57			'InterimFields',
58			widget=BikaRecordsWidget(
59			label=_("Calculation Interim Fields"),
60			description=_(
61			"Define interim fields such as vessel mass, dilution factors, "
62			"should your calculation require them. The field title "
63			"specified here will be used as column headers and field "
64			"descriptors where the interim fields are displayed. If "
65			"'Apply wide' is enabled the field will be shown in a "
66			"selection box on the top of the worksheet, allowing to apply "
67			"a specific value to all the corresponding fields on the "
68			"sheet."),
69			)
70			),
71
72			# hidden field
73			UIDReferenceField(
74			"DependentServices",
75			required=1,
76			multiValued=1,
77			relationship="CalculationDependentServices",
78			allowed_types=("AnalysisService",),
79			widget=ReferenceWidget(
80			visible=False,
81			label=_(
82			"label_calculation_dependentservices",
83			default="Dependent services"),
84			description=_(
85			"description_calculation_dependentservices",
86			default="Dependent services of this calculation"),
87			catalog=SETUP_CATALOG,
88			query={
89			"is_active": True,
90			"sort_on": "sortable_title",
91			"sort_order": "ascending"
92			},
93			),
94			),
95
96			RecordsField(
97			'PythonImports',
98			required=False,
99			subfields=('module', 'function'),
100			subfield_labels={'module': _('Module'), 'function': _('Function')},
101			subfield_readonly={'module': False, 'function': False},
102			subfield_types={'module': 'string', 'function': 'string'},
103			default=[
104			{'module': 'math', 'function': 'ceil'},
105			{'module': 'math', 'function': 'floor'},
106			],
107			subfield_validators={
108			'module': 'importvalidator',
109			},
110			widget=BikaRecordsWidget(
111			label=_("Additional Python Libraries"),
112			description=_(
113			"If your formula needs a special function from an external "
114			"Python library, you can import it here. E.g. if you want to "
115			"use the 'floor' function from the Python 'math' module, "
116			"you add 'math' to the Module field and 'floor' to the "
117			"function field. The equivalent in Python would be 'from math "
118			"import floor'. In your calculation you could use then "
119			"'floor([Ca] + [Mg])'. "
120			),
121			allowDelete=True,
122			),
123			),
124
125			TextField(
126			'Formula',
127			required=True,
128			validators=('formulavalidator',),
129			default_content_type='text/plain',
130			allowable_content_types=('text/plain',),
131			widget=TextAreaWidget(
132			label=_("Calculation Formula"),
133			description=_(
134			"<p>The formula you type here will be dynamically calculated "
135			"when an analysis using this calculation is displayed.</p>"
136			"<p>To enter a Calculation, use standard maths operators, "
137			"+ - * / ( ), and all keywords available, both from other "
138			"Analysis Services and the Interim Fields specified here, "
139			"as variables. Enclose them in square brackets [ ].</p>"
140			"<p>E.g, the calculation for Total Hardness, the total of "
141			"Calcium (ppm) and Magnesium (ppm) ions in water, is entered "
142			"as [Ca] + [Mg], where Ca and MG are the keywords for those "
143			"two Analysis Services.</p>"),
144			)
145			),
146
147			RecordsField(
148			'TestParameters',
149			required=False,
150			subfields=('keyword', 'value'),
151			subfield_labels={'keyword': _('Keyword'), 'value': _('Value')},
152			subfield_readonly={'keyword': True, 'value': False},
153			subfield_types={'keyword': 'string', 'value': 'float'},
154			default=[{'keyword': '', 'value': 0}],
155			widget=BikaRecordsWidget(
156			label=_("Test Parameters"),
157			description=_("To test the calculation, enter values here for all "
158			"calculation parameters. This includes Interim "
159			"fields defined above, as well as any services that "
160			"this calculation depends on to calculate results."),
161			allowDelete=False,
162			),
163			),
164
165			TextField(
166			'TestResult',
167			default_content_type='text/plain',
168			allowable_content_types=('text/plain',),
169			widget=TextAreaWidget(
170			label=_('Test Result'),
171			description=_("The result after the calculation has taken place "
172			"with test values. You will need to save the "
173			"calculation before this value will be calculated."),
174			)
175			),
176
177			))
178
179			schema['title'].widget.visible = True
180			schema['description'].widget.visible = True
181
182
183			class Calculation(BaseFolder, HistoryAwareMixin):
184			"""Calculation for Analysis Results
185			"""
186			implements(ICalculation, IDeactivable)
187
188			security = ClassSecurityInfo()
189			displayContentsTab = False
190			schema = schema
			0 ignored issues – show Comprehensibility Best Practice introduced 2018-07-25 08:58 UTC by Report Bug Copy Issue Report The variable `schema` does not seem to be defined. Loading history...
191
192			_at_rename_after_creation = True
193
194			def _renameAfterCreation(self, check_auto_id=False):
195			from senaite.core.idserver import renameAfterCreation
196			renameAfterCreation(self)
197
198			def setInterimFields(self, value):
199			new_value = []
200
201			for x in range(len(value)):
202			row = dict(value[x])
203			keys = row.keys()
204			if 'value' not in keys:
205			row['value'] = 0
206			new_value.append(row)
207
208			# extract the keywords from the new calculation interims
209			calculation_interim_keys = map(lambda i: i.get("keyword"), value)
210
211			# update all service interims
212			for service in self.getCalculationDependents():
213			# get the interims of the dependent service
214			service_interims = service.getInterimFields()
215			# extract the keywords from the service interims
216			service_interim_keys = map(lambda i: i.get("keyword"),
217			service_interims)
218			# sync new interims from the calculation -> service
219			new_interims = set(calculation_interim_keys).difference(
220			set(service_interim_keys))
221			for key in new_interims:
222			new_interim = value[calculation_interim_keys.index(key)]
223			service_interims.append(new_interim)
224			if new_interims:
225			service.setInterimFields(service_interims)
226
227			self.getField('InterimFields').set(self, new_value)
228
229			def setFormula(self, Formula=None):
230			"""Set the Dependent Services from the text of the calculation Formula
231			"""
232			bsc = getToolByName(self, 'senaite_catalog_setup')
233			if Formula is None:
234			self.setDependentServices(None)
235			self.getField('Formula').set(self, Formula)
236			else:
237			keywords = re.compile(r"\[([^.^\]]+)\]").findall(Formula)
238			brains = bsc(portal_type='AnalysisService',
239			getKeyword=keywords)
240			services = [brain.getObject() for brain in brains]
241			self.getField('DependentServices').set(self, services)
242			self.getField('Formula').set(self, Formula)
243
244			def getMinifiedFormula(self):
245			"""Return the current formula value as text.
246			The result will have newlines and additional spaces stripped out.
247			"""
248			value = " ".join(self.getFormula().splitlines())
249			return value
250
251			def getCalculationDependencies(self, flat=False, deps=None):
252			""" Recursively calculates all dependencies of this calculation.
253			The return value is dictionary of dictionaries (of dictionaries...)
254
255			{service_UID1:
256			{service_UID2:
257			{service_UID3: {},
258			service_UID4: {},
259			},
260			},
261			}
262
263			set flat=True to get a simple list of AnalysisService objects
264			"""
265			if deps is None:
266			deps = [] if flat is True else {}
267
268			def get_fetched(deps):
269			if isinstance(deps, list):
270			return map(api.get_uid, deps)
271			if isinstance(deps, dict):
272			fetched = deps.keys()
273			for value in deps.values():
274			fetched.extend(get_fetched(value))
275			return fetched
276			return []
277
278			# List of service uids that have been grabbed already. This is used to
279			# prevent an infinite recursion error when the formula includes the
280			# Keyword of the Service that includes the Calculation
281			fetched = get_fetched(deps)
282
283			for service in self.getDependentServices():
284			if api.get_uid(service) in fetched:
285			# Processed already. Omit to prevent recursion
286			continue
287
288			if flat:
289			deps.append(service)
290			else:
291			deps[service.UID()] = {}
292
293			calc = service.getCalculation()
294			if calc:
295			calc.getCalculationDependencies(flat, deps)
296
297			if flat:
298			# Remove duplicates
299			deps = list(set(deps))
300
301			return deps
302
303			def getCalculationDependents(self, deps=None):
304			"""Return a flat list of services who depend on this calculation.
305
306			This refers only to services who's Calculation UIDReferenceField have
307			the value set to point to this calculation.
308
309			It has nothing to do with the services referenced in the calculation's
310			Formula.
311			"""
312			if deps is None:
313			deps = []
314			backrefs = get_backreferences(self, "AnalysisServiceCalculation")
315			services = map(get_object_by_uid, backrefs)
316			for service in services:
317			calc = service.getCalculation()
318			if calc and calc.UID() != self.UID():
319			calc.getCalculationDependents(deps)
320			deps.append(service)
321			return deps
322
323			def setTestParameters(self, form_value):
324			"""This is called from the objectmodified subscriber, to ensure
325			correct population of the test-parameters field.
326			It collects Keywords for all services that are direct dependencies of
327			this calculatioin, and all of this calculation's InterimFields,
328			and gloms them together.
329			"""
330			params = []
331
332			# Set default/existing values for InterimField keywords
333			for interim in self.getInterimFields():
334			keyword = interim.get('keyword')
335			ex = [x.get('value') for x in form_value if
336			x.get('keyword') == keyword]
337			params.append({'keyword': keyword,
338			'value': ex[0] if ex else interim.get('value')})
339			# Set existing/blank values for service keywords
340			for service in self.getDependentServices():
341			keyword = service.getKeyword()
342			ex = [x.get('value') for x in form_value if
343			x.get('keyword') == keyword]
344			params.append({'keyword': keyword,
345			'value': ex[0] if ex else ''})
346			self.Schema().getField('TestParameters').set(self, params)
347
348			# noinspection PyUnusedLocal
349			def setTestResult(self, form_value):
350			"""Calculate formula with TestParameters and enter result into
351			TestResult field.
352			"""
353			# Create mapping from TestParameters
354			mapping = {x['keyword']: x['value'] for x in self.getTestParameters()}
355			# Gather up and parse formula
356			formula = self.getMinifiedFormula()
357			test_result_field = self.Schema().getField('TestResult')
358
359			# Flush the TestResult field and return
360			if not formula:
361			return test_result_field.set(self, "")
362
363			formula = formula.replace('[', '{').replace(']', '}').replace(' ', '')
364			result = 'Failure'
365
366			try:
367			formula = formula.format(**mapping)
368			result = eval(formula, self._getGlobals())
369			except TypeError as e:
370			# non-numeric arguments in interim mapping?
371			result = "TypeError: {}".format(str(e.args[0]))
372			except ZeroDivisionError as e:
373			result = "Division by 0: {}".format(str(e.args[0]))
374			except KeyError as e:
375			result = "Key Error: {}".format(str(e.args[0]))
376			except ImportError as e:
377			result = "Import Error: {}".format(str(e.args[0]))
378			except Exception as e:
379			result = "Unspecified exception: {}".format(str(e.args[0]))
380			test_result_field.set(self, str(result))
381
382			def _getGlobals(self, **kwargs):
383			"""Return the globals dictionary for the formula calculation
384			"""
385			# Default globals
386			globs = {
387			"__builtins__": None,
388			"all": all,
389			"any": any,
390			"bool": bool,
391			"chr": chr,
392			"cmp": cmp,
			0 ignored issues – show Comprehensibility Best Practice introduced 2021-01-11 23:48 UTC by Report Bug Copy Issue Report The variable `cmp` does not seem to be defined. Loading history...
393			"complex": complex,
394			"divmod": divmod,
395			"enumerate": enumerate,
396			"float": float,
397			"format": format,
398			"frozenset": frozenset,
399			"hex": hex,
400			"int": int,
401			"len": len,
402			"list": list,
403			"long": long,
			0 ignored issues – show Comprehensibility Best Practice introduced 2021-01-11 23:48 UTC by Report Bug Copy Issue Report The variable `long` does not seem to be defined. Loading history...
404			"math": math,
405			"max": max,
406			"min": min,
407			"oct": oct,
408			"ord": ord,
409			"pow": pow,
410			"range": range,
411			"reversed": reversed,
412			"round": round,
413			"str": str,
414			"sum": sum,
415			"tuple": tuple,
416			"xrange": xrange,
			0 ignored issues – show Comprehensibility Best Practice introduced 2021-01-11 23:48 UTC by Report Bug Copy Issue Report The variable `xrange` does not seem to be defined. Loading history...
417			}
418			# Update with keyword arguments
419			globs.update(kwargs)
420			# Update with additional Python libraries
421			for imp in self.getPythonImports():
422			mod = imp["module"]
423			func = imp["function"]
424			member = self._getModuleMember(mod, func)
425			if member is None:
426			raise ImportError(
427			"Could not find member {} of module {}".format(
428			func, mod))
429			globs[func] = member
430			return globs
431
432			def _getModuleMember(self, dotted_name, member):
433			"""Get the member object of a module.
434
435			:param dotted_name: The dotted name of the module, e.g. 'scipy.special'
436			:type dotted_name: string
437			:param member: The name of the member function, e.g. 'gammaincinv'
438			:type member: string
439			:returns: member object or None
440			"""
441			try:
442			mod = importlib.import_module(dotted_name)
443			except ImportError as e:
444			logger.error("Cannot import module %s: %s" % (dotted_name, str(e)))
445			return None
446
447			members = dict(inspect.getmembers(mod))
448			return members.get(member)
449
450			def workflow_script_activate(self):
451			pu = getToolByName(self, 'plone_utils')
452			# A calculation cannot be re-activated if services it depends on
453			# are deactivated.
454			services = self.getDependentServices()
455			inactive_services = []
456			for service in services:
457			if not api.is_active(service):
458			inactive_services.append(service.Title())
459			if inactive_services:
460			msg = _("Cannot activate calculation, because the following "
461			"service dependencies are inactive: ${inactive_services}",
462			mapping={'inactive_services': safe_unicode(
463			", ".join(inactive_services))})
464			pu.addPortalMessage(msg, 'error')
465			transaction.get().abort()
466			raise WorkflowException
467
468			def workflow_script_deactivate(self):
469			bsc = getToolByName(self, 'senaite_catalog_setup')
470			pu = getToolByName(self, 'plone_utils')
471			# A calculation cannot be deactivated if active services are using it.
472			services = bsc(portal_type="AnalysisService", is_active=True)
473			calc_services = []
474			for service in services:
475			service = service.getObject()
476			calc = service.getCalculation()
477			if calc and calc.UID() == self.UID():
478			calc_services.append(service.Title())
479			if calc_services:
480			msg = _(
481			'Cannot deactivate calculation, because it is in use by the '
482			'following services: ${calc_services}',
483			mapping={
484			'calc_services': safe_unicode(", ".join(calc_services))})
485			pu.addPortalMessage(msg, 'error')
486			transaction.get().abort()
487			raise WorkflowException
488
489
490			registerType(Calculation, PROJECTNAME)
491

senaite / senaite.core

Push — 2.x ( 3a5aed...187ea7 )

Calculation.getCalculationDependents() A

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