bika.lims.idserver.search_by_prefix() - Code Metrics - Inspection of "Fix initial IDs not starting with 1 (#1453)" - senaite/senaite.core - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 10ce0d...03dfc1 )

by Jordi

created 2019-10-14 16:06 UTC

bika.lims.idserver.search_by_prefix() A

↳ Parent: bika.lims.idserver

Complexity

Conditions

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	4
dl	0
loc	7
rs	10
c	0
b	0
f	0
cc	2
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 2018-2019 by it's authors.
# Some rights reserved, see README and LICENSE.

import itertools
import re

import transaction
from bika.lims import api
from bika.lims import logger
from bika.lims.alphanumber import Alphanumber
from bika.lims.alphanumber import to_alpha
from bika.lims.browser.fields.uidreferencefield import \
    get_backreferences as get_backuidreferences
from bika.lims.interfaces import IAnalysisRequest
from bika.lims.interfaces import IAnalysisRequestPartition
from bika.lims.interfaces import IAnalysisRequestRetest
from bika.lims.interfaces import IAnalysisRequestSecondary
from bika.lims.interfaces import IIdServer
from bika.lims.numbergenerator import INumberGenerator
from DateTime import DateTime
from Products.ATContentTypes.utils import DT2dt
from zope.component import getAdapters
from zope.component import getUtility

AR_TYPES = [
    "AnalysisRequest",
    "AnalysisRequestRetest",
    "AnalysisRequestPartition",
    "AnalysisRequestSecondary",
]


def get_objects_in_sequence(brain_or_object, ctype, cref):
    """Return a list of items
    """
    obj = api.get_object(brain_or_object)
    if ctype == "backreference":
        return get_backreferences(obj, cref)
    if ctype == "contained":
        return get_contained_items(obj, cref)
    raise ValueError("Reference value is mandatory for sequence type counter")


def get_backreferences(obj, relationship):
    """Returns the backreferences
    """
    refs = get_backuidreferences(obj, relationship)

    # TODO remove after all ReferenceField get ported to UIDReferenceField
    # At this moment, there are still some content types that are using the
    # ReferenceField, so we need to fallback to traditional getBackReferences
    # for these cases.
    if not refs:
        refs = obj.getBackReferences(relationship)

    return refs


def get_contained_items(obj, spec):
    """Returns a list of (id, subobject) tuples of the current context.
    If 'spec' is specified, returns only objects whose meta_type match 'spec'
    """
    return obj.objectItems(spec)


def get_type_id(context, **kw):
    """Returns the type id for the context passed in
    """
    portal_type = kw.get("portal_type", None)
    if portal_type:
        return portal_type

    # Override by provided marker interface
    if IAnalysisRequestPartition.providedBy(context):
        return "AnalysisRequestPartition"
    elif IAnalysisRequestRetest.providedBy(context):
        return "AnalysisRequestRetest"
    elif IAnalysisRequestSecondary.providedBy(context):
        return "AnalysisRequestSecondary"

    return api.get_portal_type(context)


def get_suffix(id, regex="-[A-Z]{1}[0-9]{1,2}$"):
    """Get the suffix of the ID, e.g. '-R01' or '-P05'

    The current regex determines a pattern of a single uppercase character with
    at most 2 numbers following at the end of the ID as the suffix.
    """
    parts = re.findall(regex, id)
    if not parts:
        return ""
    return parts[0]


def strip_suffix(id):
    """Split off any suffix from ID

    This mimics the old behavior of the Sample ID.
    """
    suffix = get_suffix(id)
    if not suffix:
        return id
    return re.split(suffix, id)[0]


def get_retest_count(context, default=0):
    """Returns the number of retests of this AR
    """
    if not is_ar(context):
        return default

    invalidated = context.getInvalidated()

    count = 0
    while invalidated:
        count += 1
        invalidated = invalidated.getInvalidated()

    return count


def get_partition_count(context, default=0):
    """Returns the number of partitions of this AR
    """
    if not is_ar(context):
        return default

    parent = context.getParentAnalysisRequest()

    if not parent:
        return default

    return len(parent.getDescendants())


def get_secondary_count(context, default=0):
    """Returns the number of secondary ARs of this AR
    """
    if not is_ar(context):
        return default

    primary = context.getPrimaryAnalysisRequest()

    if not primary:
        return default

    return len(primary.getSecondaryAnalysisRequests())


def is_ar(context):
    """Checks if the context is an AR
    """
    return IAnalysisRequest.providedBy(context)


def get_config(context, **kw):
    """Fetch the config dict from the Bika Setup for the given portal_type
    """
    # get the ID formatting config
    config_map = api.get_bika_setup().getIDFormatting()

    # allow portal_type override
    portal_type = get_type_id(context, **kw)

    # check if we have a config for the given portal_type
    for config in config_map:
        if config['portal_type'].lower() == portal_type.lower():
            return config

    # return a default config
    default_config = {
        'form': '%s-{seq}' % portal_type.lower(),
        'sequence_type': 'generated',
        'prefix': '%s' % portal_type.lower(),
    }
    return default_config


def get_variables(context, **kw):
    """Prepares a dictionary of key->value pairs usable for ID formatting
    """
    # allow portal_type override
    portal_type = get_type_id(context, **kw)

    # The variables map hold the values that might get into the constructed id
    variables = {
        "context": context,
        "id": api.get_id(context),
        "portal_type": portal_type,
        "year": get_current_year(),
        "parent": api.get_parent(context),
        "seq": 0,
        "alpha": Alphanumber(0),
    }

    # Augment the variables map depending on the portal type
    if portal_type in AR_TYPES:
        now = DateTime()
        sampling_date = context.getSamplingDate()
        sampling_date = sampling_date and DT2dt(sampling_date) or DT2dt(now)
        date_sampled = context.getDateSampled()
        date_sampled = date_sampled and DT2dt(date_sampled) or DT2dt(now)
        test_count = 1

        variables.update({
            "clientId": context.getClientID(),
            "dateSampled": date_sampled,
            "samplingDate": sampling_date,
            "sampleType": context.getSampleType().getPrefix(),
            "test_count": test_count
        })

        # Partition
        if portal_type == "AnalysisRequestPartition":
            parent_ar = context.getParentAnalysisRequest()
            parent_ar_id = api.get_id(parent_ar)
            parent_base_id = strip_suffix(parent_ar_id)
            partition_count = get_partition_count(context)
            variables.update({
                "parent_analysisrequest": parent_ar,
                "parent_ar_id": parent_ar_id,
                "parent_base_id": parent_base_id,
                "partition_count": partition_count,
            })

        # Retest
        elif portal_type == "AnalysisRequestRetest":
            # Note: we use "parent" instead of "invalidated" for simplicity
            parent_ar = context.getInvalidated()
            parent_ar_id = api.get_id(parent_ar)
            parent_base_id = strip_suffix(parent_ar_id)
            # keep the full ID if the retracted AR is a partition
            if context.isPartition():
                parent_base_id = parent_ar_id
            retest_count = get_retest_count(context)
            test_count = test_count + retest_count
            variables.update({
                "parent_analysisrequest": parent_ar,
                "parent_ar_id": parent_ar_id,
                "parent_base_id": parent_base_id,
                "retest_count": retest_count,
                "test_count": test_count,
            })

        # Secondary
        elif portal_type == "AnalysisRequestSecondary":
            primary_ar = context.getPrimaryAnalysisRequest()
            primary_ar_id = api.get_id(primary_ar)
            parent_base_id = strip_suffix(primary_ar_id)
            secondary_count = get_secondary_count(context)
            variables.update({
                "parent_analysisrequest": primary_ar,
                "parent_ar_id": primary_ar_id,
                "parent_base_id": parent_base_id,
                "secondary_count": secondary_count,
            })

    elif portal_type == "ARReport":
        variables.update({
            "clientId": context.aq_parent.getClientID(),
        })

    return variables


def split(string, separator="-"):
    """ split a string on the given separator
    """
    if not isinstance(string, basestring):
        return []
    return string.split(separator)


def to_int(thing, default=0):
    """Convert a thing to an integer
    """
    try:
        return int(thing)
    except (TypeError, ValueError):
        return default


def slice(string, separator="-", start=None, end=None):
    """Slice out a segment of a string, which is splitted on both the wildcards
    and the separator passed in, if any
    """
    # split by wildcards/keywords first
    # AR-{sampleType}-{parentId}{alpha:3a2d}
    segments = filter(None, re.split('(\{.+?\})', string))
    # ['AR-', '{sampleType}', '-', '{parentId}', '{alpha:3a2d}']
    if separator:
        # Keep track of singleton separators as empties
        # We need to do this to prevent duplicates later, when splitting
        segments = map(lambda seg: seg!=separator and seg or "", segments)
        # ['AR-', '{sampleType}', '', '{parentId}', '{alpha:3a2d}']
        # Split each segment at the given separator
        segments = map(lambda seg: split(seg, separator), segments)
        # [['AR', ''], ['{sampleType}'], [''], ['{parentId}'], ['{alpha:3a2d}']]
        # Flatten the list
        segments = list(itertools.chain.from_iterable(segments))
        # ['AR', '', '{sampleType}', '', '{parentId}', '{alpha:3a2d}']
        # And replace empties with separator
        segments = map(lambda seg: seg!="" and seg or separator, segments)
        # ['AR', '-', '{sampleType}', '-', '{parentId}', '{alpha:3a2d}']

    # Get the start and end positions from the segments without separator
    cleaned_segments = filter(lambda seg: seg!=separator, segments)
    start_pos = to_int(start, 0)
    # Note "end" is not a position, but the number of elements to join!
    end_pos = to_int(end, len(cleaned_segments) - start_pos) + start_pos - 1

    # Map the positions against the segments with separator
    start = segments.index(cleaned_segments[start_pos])
    end = segments.index(cleaned_segments[end_pos]) + 1

    # Return all segments joined
    sliced_parts = segments[start:end]
    return "".join(sliced_parts)


def get_current_year():
    """Returns the current year as a two digit string
    """
    return DateTime().strftime("%Y")[2:]


def make_storage_key(portal_type, prefix=None):
    """Make a storage (dict-) key for the number generator
    """
    key = portal_type.lower()
    if prefix:
        key = "{}-{}".format(key, prefix)
    return key


def get_seq_number_from_id(id, id_template, prefix, **kw):
    """Return the sequence number of the given ID
    """
    separator = kw.get("separator", "-")
    postfix = id.replace(prefix, "").strip(separator)
    postfix_segments = postfix.split(separator)
    seq_number = 0
    possible_seq_nums = filter(lambda n: n.isalnum(), postfix_segments)
    if possible_seq_nums:
        seq_number = possible_seq_nums[-1]

    # Check if this id has to be expressed as an alphanumeric number
    seq_number = get_alpha_or_number(seq_number, id_template)
    seq_number = to_int(seq_number)
    return seq_number


def get_alpha_or_number(number, template):
    """Returns an Alphanumber that represents the number passed in, expressed
    as defined in the template. Otherwise, returns the number
    """
    match = re.match(r".*\{alpha:(\d+a\d+d)\}$", template.strip())
    if match and match.groups():
        format = match.groups()[0]
        return to_alpha(number, format)
    return number


def get_counted_number(context, config, variables, **kw):
    """Compute the number for the sequence type "Counter"
    """
    # This "context" is defined by the user in the Setup and can be actually
    # anything. However, we assume it is something like "sample" or similar
    ctx = config.get("context")

    # get object behind the context name (falls back to the current context)
    obj = variables.get(ctx, context)

    # get the counter type, which is either "backreference" or "contained"
    counter_type = config.get("counter_type")

    # the counter reference is either the "relationship" for
    # "backreference" or the meta type for contained objects
    counter_reference = config.get("counter_reference")

    # This should be a list of existing items, including the current context
    # object
    seq_items = get_objects_in_sequence(obj, counter_type, counter_reference)

    number = len(seq_items)
    return number


def get_generated_number(context, config, variables, **kw):
    """Generate a new persistent number with the number generator for the
    sequence type "Generated"
    """
    # separator where to split the ID
    separator = kw.get('separator', '-')

    # allow portal_type override
    portal_type = get_type_id(context, **kw)

    # The ID format for string interpolation, e.g. WS-{seq:03d}
    id_template = config.get("form", "")

    # The split length defines where the key is splitted from the value
    split_length = config.get("split_length", 1)

    # The prefix template is the static part of the ID
    prefix_template = slice(id_template, separator=separator, end=split_length)

    # get the number generator
    number_generator = getUtility(INumberGenerator)

    # generate the key for the number generator storage
    prefix = prefix_template.format(**variables)

    # normalize out any unicode characters like Ö, É, etc. from the prefix
    prefix = api.normalize_filename(prefix)

    # The key used for the storage
    key = make_storage_key(portal_type, prefix)

    if not kw.get("dry_run", False):
        # Generate a new number
        # NOTE Even when the number exceeds the given ID sequence format,
        #      it will overflow gracefully, e.g.
        #      >>> {sampleId}-R{seq:03d}'.format(sampleId="Water", seq=999999)
        #      'Water-R999999‘
        number = number_generator.generate_number(key=key)
    else:
        # => This allows us to "preview" the next generated ID in the UI
        # TODO Show the user the next generated number somewhere in the UI
        number = number_generator.get(key, 1)

    # Return an int or Alphanumber
    return get_alpha_or_number(number, id_template)


def generateUniqueId(context, **kw):
    """ Generate pretty content IDs.
    """

    # get the config for this portal type from the system setup
    config = get_config(context, **kw)

    # get the variables map for later string interpolation
    variables = get_variables(context, **kw)

    # The new generate sequence number
    number = 0

    # get the sequence type from the global config
    sequence_type = config.get("sequence_type", "generated")

    # Sequence Type is "Counter", so we use the length of the backreferences or
    # contained objects of the evaluated "context" defined in the config
    if sequence_type in ["counter"]:
        number = get_counted_number(context, config, variables, **kw)

    # Sequence Type is "Generated", so the ID is constructed according to the
    # configured split length
    if sequence_type in ["generated"]:
        number = get_generated_number(context, config, variables, **kw)

    # store the new sequence number to the variables map for str interpolation
    if isinstance(number, Alphanumber):
        variables["alpha"] = number
    variables["seq"] = to_int(number)

    # The ID formatting template from user config, e.g. {sampleId}-R{seq:02d}
    id_template = config.get("form", "")

    # Interpolate the ID template
    try:
        new_id = id_template.format(**variables)
    except KeyError, e:
        logger.error('KeyError: {} not in id_template {}'.format(
            e, id_template))
        raise
    normalized_id = api.normalize_filename(new_id)
    logger.info("generateUniqueId: {}".format(normalized_id))

    return normalized_id


def renameAfterCreation(obj):
    """Rename the content after it was created/added
    """
    # Can't rename without a subtransaction commit when using portal_factory
    transaction.savepoint(optimistic=True)

    # The id returned should be normalized already
    new_id = None

    # Checking if an adapter exists for this content type. If yes, we will
    # get new_id from adapter.
    for name, adapter in getAdapters((obj, ), IIdServer):
        if new_id:
            logger.warn(('More than one ID Generator Adapter found for'
                         'content type -> %s') % obj.portal_type)
        new_id = adapter.generate_id(obj.portal_type)
    if not new_id:
        new_id = generateUniqueId(obj)

    # rename the object to the new id
    parent = api.get_parent(obj)
    parent.manage_renameObject(obj.id, new_id)

    return new_id


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 2018-2019 by it's authors.
19			# Some rights reserved, see README and LICENSE.
20
21			import itertools
22			import re
23
24			import transaction
25			from bika.lims import api
26			from bika.lims import logger
27			from bika.lims.alphanumber import Alphanumber
28			from bika.lims.alphanumber import to_alpha
29			from bika.lims.browser.fields.uidreferencefield import \
30			get_backreferences as get_backuidreferences
31			from bika.lims.interfaces import IAnalysisRequest
32			from bika.lims.interfaces import IAnalysisRequestPartition
33			from bika.lims.interfaces import IAnalysisRequestRetest
34			from bika.lims.interfaces import IAnalysisRequestSecondary
35			from bika.lims.interfaces import IIdServer
36			from bika.lims.numbergenerator import INumberGenerator
37			from DateTime import DateTime
38			from Products.ATContentTypes.utils import DT2dt
39			from zope.component import getAdapters
40			from zope.component import getUtility
41
42			AR_TYPES = [
43			"AnalysisRequest",
44			"AnalysisRequestRetest",
45			"AnalysisRequestPartition",
46			"AnalysisRequestSecondary",
47			]
48
49
50			def get_objects_in_sequence(brain_or_object, ctype, cref):
51			"""Return a list of items
52			"""
53			obj = api.get_object(brain_or_object)
54			if ctype == "backreference":
55			return get_backreferences(obj, cref)
56			if ctype == "contained":
57			return get_contained_items(obj, cref)
58			raise ValueError("Reference value is mandatory for sequence type counter")
59
60
61			def get_backreferences(obj, relationship):
62			"""Returns the backreferences
63			"""
64			refs = get_backuidreferences(obj, relationship)
65
66			# TODO remove after all ReferenceField get ported to UIDReferenceField
67			# At this moment, there are still some content types that are using the
68			# ReferenceField, so we need to fallback to traditional getBackReferences
69			# for these cases.
70			if not refs:
71			refs = obj.getBackReferences(relationship)
72
73			return refs
74
75
76			def get_contained_items(obj, spec):
77			"""Returns a list of (id, subobject) tuples of the current context.
78			If 'spec' is specified, returns only objects whose meta_type match 'spec'
79			"""
80			return obj.objectItems(spec)
81
82
83			def get_type_id(context, **kw):
84			"""Returns the type id for the context passed in
85			"""
86			portal_type = kw.get("portal_type", None)
87			if portal_type:
88			return portal_type
89
90			# Override by provided marker interface
91			if IAnalysisRequestPartition.providedBy(context):
92			return "AnalysisRequestPartition"
93			elif IAnalysisRequestRetest.providedBy(context):
94			return "AnalysisRequestRetest"
95			elif IAnalysisRequestSecondary.providedBy(context):
96			return "AnalysisRequestSecondary"
97
98			return api.get_portal_type(context)
99
100
101			def get_suffix(id, regex="-[A-Z]{1}[0-9]{1,2}$"):
102			"""Get the suffix of the ID, e.g. '-R01' or '-P05'
103
104			The current regex determines a pattern of a single uppercase character with
105			at most 2 numbers following at the end of the ID as the suffix.
106			"""
107			parts = re.findall(regex, id)
108			if not parts:
109			return ""
110			return parts[0]
111
112
113			def strip_suffix(id):
114			"""Split off any suffix from ID
115
116			This mimics the old behavior of the Sample ID.
117			"""
118			suffix = get_suffix(id)
119			if not suffix:
120			return id
121			return re.split(suffix, id)[0]
122
123
124			def get_retest_count(context, default=0):
125			"""Returns the number of retests of this AR
126			"""
127			if not is_ar(context):
128			return default
129
130			invalidated = context.getInvalidated()
131
132			count = 0
133			while invalidated:
134			count += 1
135			invalidated = invalidated.getInvalidated()
136
137			return count
138
139
140			def get_partition_count(context, default=0):
141			"""Returns the number of partitions of this AR
142			"""
143			if not is_ar(context):
144			return default
145
146			parent = context.getParentAnalysisRequest()
147
148			if not parent:
149			return default
150
151			return len(parent.getDescendants())
152
153
154			def get_secondary_count(context, default=0):
155			"""Returns the number of secondary ARs of this AR
156			"""
157			if not is_ar(context):
158			return default
159
160			primary = context.getPrimaryAnalysisRequest()
161
162			if not primary:
163			return default
164
165			return len(primary.getSecondaryAnalysisRequests())
166
167
168			def is_ar(context):
169			"""Checks if the context is an AR
170			"""
171			return IAnalysisRequest.providedBy(context)
172
173
174			def get_config(context, **kw):
175			"""Fetch the config dict from the Bika Setup for the given portal_type
176			"""
177			# get the ID formatting config
178			config_map = api.get_bika_setup().getIDFormatting()
179
180			# allow portal_type override
181			portal_type = get_type_id(context, **kw)
182
183			# check if we have a config for the given portal_type
184			for config in config_map:
185			if config['portal_type'].lower() == portal_type.lower():
186			return config
187
188			# return a default config
189			default_config = {
190			'form': '%s-{seq}' % portal_type.lower(),
191			'sequence_type': 'generated',
192			'prefix': '%s' % portal_type.lower(),
193			}
194			return default_config
195
196
197			def get_variables(context, **kw):
198			"""Prepares a dictionary of key->value pairs usable for ID formatting
199			"""
200			# allow portal_type override
201			portal_type = get_type_id(context, **kw)
202
203			# The variables map hold the values that might get into the constructed id
204			variables = {
205			"context": context,
206			"id": api.get_id(context),
207			"portal_type": portal_type,
208			"year": get_current_year(),
209			"parent": api.get_parent(context),
210			"seq": 0,
211			"alpha": Alphanumber(0),
212			}
213
214			# Augment the variables map depending on the portal type
215			if portal_type in AR_TYPES:
216			now = DateTime()
217			sampling_date = context.getSamplingDate()
218			sampling_date = sampling_date and DT2dt(sampling_date) or DT2dt(now)
219			date_sampled = context.getDateSampled()
220			date_sampled = date_sampled and DT2dt(date_sampled) or DT2dt(now)
221			test_count = 1
222
223			variables.update({
224			"clientId": context.getClientID(),
225			"dateSampled": date_sampled,
226			"samplingDate": sampling_date,
227			"sampleType": context.getSampleType().getPrefix(),
228			"test_count": test_count
229			})
230
231			# Partition
232			if portal_type == "AnalysisRequestPartition":
233			parent_ar = context.getParentAnalysisRequest()
234			parent_ar_id = api.get_id(parent_ar)
235			parent_base_id = strip_suffix(parent_ar_id)
236			partition_count = get_partition_count(context)
237			variables.update({
238			"parent_analysisrequest": parent_ar,
239			"parent_ar_id": parent_ar_id,
240			"parent_base_id": parent_base_id,
241			"partition_count": partition_count,
242			})
243
244			# Retest
245			elif portal_type == "AnalysisRequestRetest":
246			# Note: we use "parent" instead of "invalidated" for simplicity
247			parent_ar = context.getInvalidated()
248			parent_ar_id = api.get_id(parent_ar)
249			parent_base_id = strip_suffix(parent_ar_id)
250			# keep the full ID if the retracted AR is a partition
251			if context.isPartition():
252			parent_base_id = parent_ar_id
253			retest_count = get_retest_count(context)
254			test_count = test_count + retest_count
255			variables.update({
256			"parent_analysisrequest": parent_ar,
257			"parent_ar_id": parent_ar_id,
258			"parent_base_id": parent_base_id,
259			"retest_count": retest_count,
260			"test_count": test_count,
261			})
262
263			# Secondary
264			elif portal_type == "AnalysisRequestSecondary":
265			primary_ar = context.getPrimaryAnalysisRequest()
266			primary_ar_id = api.get_id(primary_ar)
267			parent_base_id = strip_suffix(primary_ar_id)
268			secondary_count = get_secondary_count(context)
269			variables.update({
270			"parent_analysisrequest": primary_ar,
271			"parent_ar_id": primary_ar_id,
272			"parent_base_id": parent_base_id,
273			"secondary_count": secondary_count,
274			})
275
276			elif portal_type == "ARReport":
277			variables.update({
278			"clientId": context.aq_parent.getClientID(),
279			})
280
281			return variables
282
283
284			def split(string, separator="-"):
285			""" split a string on the given separator
286			"""
287			if not isinstance(string, basestring):
288			return []
289			return string.split(separator)
290
291
292			def to_int(thing, default=0):
293			"""Convert a thing to an integer
294			"""
295			try:
296			return int(thing)
297			except (TypeError, ValueError):
298			return default
299
300
301			def slice(string, separator="-", start=None, end=None):
302			"""Slice out a segment of a string, which is splitted on both the wildcards
303			and the separator passed in, if any
304			"""
305			# split by wildcards/keywords first
306			# AR-{sampleType}-{parentId}{alpha:3a2d}
307			segments = filter(None, re.split('(\{.+?\})', string))
308			# ['AR-', '{sampleType}', '-', '{parentId}', '{alpha:3a2d}']
309			if separator:
310			# Keep track of singleton separators as empties
311			# We need to do this to prevent duplicates later, when splitting
312			segments = map(lambda seg: seg!=separator and seg or "", segments)
313			# ['AR-', '{sampleType}', '', '{parentId}', '{alpha:3a2d}']
314			# Split each segment at the given separator
315			segments = map(lambda seg: split(seg, separator), segments)
316			# [['AR', ''], ['{sampleType}'], [''], ['{parentId}'], ['{alpha:3a2d}']]
317			# Flatten the list
318			segments = list(itertools.chain.from_iterable(segments))
319			# ['AR', '', '{sampleType}', '', '{parentId}', '{alpha:3a2d}']
320			# And replace empties with separator
321			segments = map(lambda seg: seg!="" and seg or separator, segments)
322			# ['AR', '-', '{sampleType}', '-', '{parentId}', '{alpha:3a2d}']
323
324			# Get the start and end positions from the segments without separator
325			cleaned_segments = filter(lambda seg: seg!=separator, segments)
326			start_pos = to_int(start, 0)
327			# Note "end" is not a position, but the number of elements to join!
328			end_pos = to_int(end, len(cleaned_segments) - start_pos) + start_pos - 1
329
330			# Map the positions against the segments with separator
331			start = segments.index(cleaned_segments[start_pos])
332			end = segments.index(cleaned_segments[end_pos]) + 1
333
334			# Return all segments joined
335			sliced_parts = segments[start:end]
336			return "".join(sliced_parts)
337
338
339			def get_current_year():
340			"""Returns the current year as a two digit string
341			"""
342			return DateTime().strftime("%Y")[2:]
343
344
345			def make_storage_key(portal_type, prefix=None):
346			"""Make a storage (dict-) key for the number generator
347			"""
348			key = portal_type.lower()
349			if prefix:
350			key = "{}-{}".format(key, prefix)
351			return key
352
353
354			def get_seq_number_from_id(id, id_template, prefix, **kw):
355			"""Return the sequence number of the given ID
356			"""
357			separator = kw.get("separator", "-")
358			postfix = id.replace(prefix, "").strip(separator)
359			postfix_segments = postfix.split(separator)
360			seq_number = 0
361			possible_seq_nums = filter(lambda n: n.isalnum(), postfix_segments)
362			if possible_seq_nums:
363			seq_number = possible_seq_nums[-1]
364
365			# Check if this id has to be expressed as an alphanumeric number
366			seq_number = get_alpha_or_number(seq_number, id_template)
367			seq_number = to_int(seq_number)
368			return seq_number
369
370
371			def get_alpha_or_number(number, template):
372			"""Returns an Alphanumber that represents the number passed in, expressed
373			as defined in the template. Otherwise, returns the number
374			"""
375			match = re.match(r".*\{alpha:(\d+a\d+d)\}$", template.strip())
376			if match and match.groups():
377			format = match.groups()[0]
378			return to_alpha(number, format)
379			return number
380
381
382			def get_counted_number(context, config, variables, **kw):
383			"""Compute the number for the sequence type "Counter"
384			"""
385			# This "context" is defined by the user in the Setup and can be actually
386			# anything. However, we assume it is something like "sample" or similar
387			ctx = config.get("context")
388
389			# get object behind the context name (falls back to the current context)
390			obj = variables.get(ctx, context)
391
392			# get the counter type, which is either "backreference" or "contained"
393			counter_type = config.get("counter_type")
394
395			# the counter reference is either the "relationship" for
396			# "backreference" or the meta type for contained objects
397			counter_reference = config.get("counter_reference")
398
399			# This should be a list of existing items, including the current context
400			# object
401			seq_items = get_objects_in_sequence(obj, counter_type, counter_reference)
402
403			number = len(seq_items)
404			return number
405
406
407			def get_generated_number(context, config, variables, **kw):
408			"""Generate a new persistent number with the number generator for the
409			sequence type "Generated"
410			"""
411			# separator where to split the ID
412			separator = kw.get('separator', '-')
413
414			# allow portal_type override
415			portal_type = get_type_id(context, **kw)
416
417			# The ID format for string interpolation, e.g. WS-{seq:03d}
418			id_template = config.get("form", "")
419
420			# The split length defines where the key is splitted from the value
421			split_length = config.get("split_length", 1)
422
423			# The prefix template is the static part of the ID
424			prefix_template = slice(id_template, separator=separator, end=split_length)
425
426			# get the number generator
427			number_generator = getUtility(INumberGenerator)
428
429			# generate the key for the number generator storage
430			prefix = prefix_template.format(**variables)
431
432			# normalize out any unicode characters like Ö, É, etc. from the prefix
433			prefix = api.normalize_filename(prefix)
434
435			# The key used for the storage
436			key = make_storage_key(portal_type, prefix)
437
438			if not kw.get("dry_run", False):
439			# Generate a new number
440			# NOTE Even when the number exceeds the given ID sequence format,
441			# it will overflow gracefully, e.g.
442			# >>> {sampleId}-R{seq:03d}'.format(sampleId="Water", seq=999999)
443			# 'Water-R999999‘
444			number = number_generator.generate_number(key=key)
445			else:
446			# => This allows us to "preview" the next generated ID in the UI
447			# TODO Show the user the next generated number somewhere in the UI
448			number = number_generator.get(key, 1)
449
450			# Return an int or Alphanumber
451			return get_alpha_or_number(number, id_template)
452
453
454			def generateUniqueId(context, **kw):
455			""" Generate pretty content IDs.
456			"""
457
458			# get the config for this portal type from the system setup
459			config = get_config(context, **kw)
460
461			# get the variables map for later string interpolation
462			variables = get_variables(context, **kw)
463
464			# The new generate sequence number
465			number = 0
466
467			# get the sequence type from the global config
468			sequence_type = config.get("sequence_type", "generated")
469
470			# Sequence Type is "Counter", so we use the length of the backreferences or
471			# contained objects of the evaluated "context" defined in the config
472			if sequence_type in ["counter"]:
473			number = get_counted_number(context, config, variables, **kw)
474
475			# Sequence Type is "Generated", so the ID is constructed according to the
476			# configured split length
477			if sequence_type in ["generated"]:
478			number = get_generated_number(context, config, variables, **kw)
479
480			# store the new sequence number to the variables map for str interpolation
481			if isinstance(number, Alphanumber):
482			variables["alpha"] = number
483			variables["seq"] = to_int(number)
484
485			# The ID formatting template from user config, e.g. {sampleId}-R{seq:02d}
486			id_template = config.get("form", "")
487
488			# Interpolate the ID template
489			try:
490			new_id = id_template.format(**variables)
491			except KeyError, e:
492			logger.error('KeyError: {} not in id_template {}'.format(
493			e, id_template))
494			raise
495			normalized_id = api.normalize_filename(new_id)
496			logger.info("generateUniqueId: {}".format(normalized_id))
497
498			return normalized_id
499
500
501			def renameAfterCreation(obj):
502			"""Rename the content after it was created/added
503			"""
504			# Can't rename without a subtransaction commit when using portal_factory
505			transaction.savepoint(optimistic=True)
506
507			# The id returned should be normalized already
508			new_id = None
509
510			# Checking if an adapter exists for this content type. If yes, we will
511			# get new_id from adapter.
512			for name, adapter in getAdapters((obj, ), IIdServer):
513			if new_id:
514			logger.warn(('More than one ID Generator Adapter found for'
515			'content type -> %s') % obj.portal_type)
516			new_id = adapter.generate_id(obj.portal_type)
517			if not new_id:
518			new_id = generateUniqueId(obj)
519
520			# rename the object to the new id
521			parent = api.get_parent(obj)
522			parent.manage_renameObject(obj.id, new_id)
523
524			return new_id
525

senaite / senaite.core

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