BaseAddView.get_default_value() - Code Metrics - Inspection of "Standalone samples and sample creation form" - senaite/senaite.core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#579)

by Pau

created 2018-01-17 17:28 UTC

BaseAddView.get_default_value() C

↳ Parent: BaseAddView

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	7
dl	0
loc	21
rs	6.4705
c	1
b	0
f	0

# -*- coding: utf-8 -*-
#
# This file is part of SENAITE.CORE
#
# Copyright 2018 by it's authors.
# Some rights reserved. See LICENSE.rst, CONTRIBUTORS.rst.

from datetime import datetime

from BTrees.OOBTree import OOBTree
from DateTime import DateTime
from Products.Five.browser import BrowserView
from plone import protect
from plone.memoize.volatile import cache
from zope.annotation.interfaces import IAnnotations
from zope.i18n.locales import locales
from zope.interface import implements
from zope.publisher.interfaces import IPublishTraverse

from bika.lims import api
from bika.lims import logger
from bika.lims.utils import cache_key
from bika.lims.utils import returns_json


class BaseManageAddView(BrowserView):
    """
    Base view to create a visibility and order manager for an Add View.
    """
    template = None

    def __init__(self, context, request):
        BrowserView.__init__(self, context, request)
        self.context = context
        self.request = request
        self.tmp_obj = None
        self.CONFIGURATION_STORAGE = None
        self.SKIP_FIELD_ON_COPY = []

    def __call__(self):
        protect.CheckAuthenticator(self.request.form)
        form = self.request.form
        if form.get("submitted", False) and form.get("save", False):
            order = form.get("order")
            self.set_field_order(order)
            visibility = form.get("visibility")
            self.set_field_visibility(visibility)
        if form.get("submitted", False) and form.get("reset", False):
            self.flush()
        return self.template()

    def get_obj(self):
        """
        This method should return a temporary object. This object should be
        of the same type as the one we are creating.
        :return: ATObjectType
        """
        raise NotImplementedError("get_obj is not implemented.")

    def get_annotation(self):
        bika_setup = api.get_bika_setup()
        return IAnnotations(bika_setup)

    @property
    def storage(self):
        annotation = self.get_annotation()
        if annotation.get(self.CONFIGURATION_STORAGE) is None:
            annotation[self.CONFIGURATION_STORAGE] = OOBTree()
        return annotation[self.CONFIGURATION_STORAGE]

    def flush(self):
        annotation = self.get_annotation()
        if annotation.get(self.CONFIGURATION_STORAGE) is not None:
            del annotation[self.CONFIGURATION_STORAGE]

    def set_field_order(self, order):
        self.storage.update({"order": order})

    def get_field_order(self):
        order = self.storage.get("order")
        if order is None:
            return map(lambda f: f.getName(), self.get_fields())
        return order

    def set_field_visibility(self, visibility):
        self.storage.update({"visibility": visibility})

    def get_field_visibility(self):
        return self.storage.get("visibility")

    def is_field_visible(self, field):
        if field.required:
            return True
        visibility = self.get_field_visibility()
        if visibility is None:
            return True
        return visibility.get(field.getName(), True)

    def get_field(self, name):
        """Get a field of the object by name
        """
        obj = self.get_obj()
        return obj.getField(name)

    def get_fields(self):
        """Return all Object fields
        """
        obj = self.get_obj()
        return obj.Schema().fields()

    def get_sorted_fields(self):
        """Return the sorted fields
        """
        inf = float("inf")
        order = self.get_field_order()

        def field_cmp(field1, field2):
            _n1 = field1.getName()
            _n2 = field2.getName()
            _i1 = _n1 in order and order.index(_n1) + 1 or inf
            _i2 = _n2 in order and order.index(_n2) + 1 or inf
            return cmp(_i1, _i2)

        return sorted(self.get_fields(), cmp=field_cmp)

    def get_fields_with_visibility(self, visibility="edit", mode="add"):
        """Return the fields with visibility
        """
        fields = self.get_sorted_fields()

        out = []

        for field in fields:
            v = field.widget.isVisible(
                self.context, mode, default='invisible', field=field)

            if self.is_field_visible(field) is False:
                v = "hidden"

            visibility_guard = True
            # visibility_guard is a widget field defined in the schema in order
            # to know the visibility of the widget when the field is related to
            # a dynamically changing content such as workflows. For instance
            # those fields related to the workflow will be displayed only if
            # the workflow is enabled, otherwise they should not be shown.
            if 'visibility_guard' in dir(field.widget):
                visibility_guard = eval(field.widget.visibility_guard)
            if v == visibility and visibility_guard:
                out.append(field)

        return out


class BaseAddView(BrowserView):
    """
    Base Object Add view

    This class offers the necessary methods to create a Add view.
    """
    template = None

    def __init__(self, context, request):
        BrowserView.__init__(self, context, request)
        self.request = request
        self.context = context
        self.fieldvalues = {}
        self.tmp_obj = None
        self.icon = None
        self.portal = None
        self.portal_url = None
        self.bika_setup = None
        self.came_from = None
        self.obj_count = None
        self.specifications = None
        self.ShowPrices = None
        self.SKIP_FIELD_ON_COPY = []

    def __call__(self):
        self.portal = api.get_portal()
        self.portal_url = self.portal.absolute_url()
        self.bika_setup = api.get_bika_setup()
        self.request.set('disable_plone.rightcolumn', 1)
        self.came_from = "add"
        self.tmp_obj = self.get_obj()
        self.obj_count = self.get_obj_count()
        self.ShowPrices = self.bika_setup.getShowPrices()

    def get_view_url(self):
        """Return the current view url including request parameters
        """
        request = self.request
        url = request.getURL()
        qs = request.getHeader("query_string")
        if not qs:
            return url
        return "{}?{}".format(url, qs)

    def get_object_by_uid(self, uid):
        """Get the object by UID
        """
        logger.debug("get_object_by_uid::UID={}".format(uid))
        obj = api.get_object_by_uid(uid, None)
        if obj is None:
            logger.warn("!! No object found for UID #{} !!")
        return obj

    def get_currency(self):
        """Returns the configured currency
        """
        bika_setup = api.get_bika_setup()
        currency = bika_setup.getCurrency()
        currencies = locales.getLocale('en').numbers.currencies
        return currencies[currency]

    def get_obj_count(self):
        """Return the obj_count request parameter
        """
        try:
            obj_count = int(self.request.form.get("obj_count", 1))
        except (TypeError, ValueError):
            obj_count = 1
        return obj_count

    def get_obj(self):
        """Create a temporary Object to fetch the fields from
        """
        raise NotImplementedError("get_obj is not implemented.")

    def get_obj_schema(self):
        """Return the Object schema
        """
        obj = self.get_obj()
        return obj.Schema()

    def get_obj_fields(self):
        """Return the Object schema fields (including extendend fields)
        """
        schema = self.get_obj_schema()
        return schema.fields()

    def get_fieldname(self, field, objnum):
        """Generate a new fieldname with a '-<objnum>' suffix
        """
        name = field.getName()
        # ensure we have only *one* suffix
        base_name = name.split("-")[0]
        suffix = "-{}".format(objnum)
        return "{}{}".format(base_name, suffix)

    def get_input_widget(self, fieldname, objnum=0, **kw):
        """Get the field widget of the Object in column <objnum>

        :param fieldname: The base fieldname
        :type fieldname: string
        """

        # temporary Object Context
        context = self.get_obj()
        # request = self.request
        schema = context.Schema()

        # get original field in the schema from the base_fieldname
        base_fieldname = fieldname.split("-")[0]
        field = context.getField(base_fieldname)

        # fieldname with -<objnum> suffix
        new_fieldname = self.get_fieldname(field, objnum)
        new_field = field.copy(name=new_fieldname)

        # get the default value for this field
        fieldvalues = self.fieldvalues
        field_value = fieldvalues.get(new_fieldname)
        # request_value = request.form.get(new_fieldname)
        # value = request_value or field_value
        value = field_value

        def getAccessor(instance):
            def accessor(**kw):
                return value
            return accessor

        # inject the new context for the widget renderer
        # see: Products.Archetypes.Renderer.render
        kw["here"] = context
        kw["context"] = context
        kw["fieldName"] = new_fieldname

        # make the field available with this name
        # XXX: This is actually a hack to make the widget
        # available in the template
        schema._fields[new_fieldname] = new_field
        new_field.getAccessor = getAccessor

        # set the default value
        form = dict()
        form[new_fieldname] = value
        self.request.form.update(form)

        logger.info(
            "get_input_widget: fieldname={} objnum={} -> "
            "new_fieldname={} value={}"
            .format(fieldname, objnum, new_fieldname, value))
        widget = context.widget(new_fieldname, **kw)
        return widget

    def get_copy_from(self):
        """Returns a mapping of UID index -> Object
        """
        # Create a mapping of source Objects for copy
        copy_from = self.request.form.get("copy_from", "").split(",")
        # clean out empty strings
        copy_from_uids = filter(lambda x: x, copy_from)
        out = dict().fromkeys(range(len(copy_from_uids)))
        for n, uid in enumerate(copy_from_uids):
            obj = self.get_object_by_uid(uid)
            if obj is None:
                continue
            out[n] = obj
        logger.info("get_copy_from: uids={}".format(copy_from_uids))
        return out

    def get_default_value(self, field, context):
        """Get the default value of the field
        """
        name = field.getName()
        default = field.getDefault(context)
        if name == "Batch":
            batch = self.get_batch()
            if batch is not None:
                default = batch
        if name == "Client":
            client = self.get_client()
            if client is not None:
                default = client
        if name == "Contact":
            contact = self.get_default_contact()
            if contact is not None:
                default = contact
        logger.info(
            "get_default_value: context={} field={} value={}"
            .format(context, name, default))
        return default

    def get_field_value(self, field, context):
        """Get the stored value of the field
        """
        name = field.getName()
        value = context.getField(name).get(context)
        logger.info(
            "get_field_value: context={} field={} value={}"
            .format(context, name, value))
        return value

    def get_client(self):
        """Returns the Client
        """
        context = self.context
        parent = api.get_parent(context)
        if context.portal_type == "Client":
            return context
        elif parent.portal_type == "Client":
            return parent
        elif context.portal_type == "Batch":
            return context.getClient()
        elif parent.portal_type == "Batch":
            return context.getClient()
        return None

    def get_batch(self):
        """Returns the Batch
        """
        context = self.context
        parent = api.get_parent(context)
        if context.portal_type == "Batch":
            return context
        elif parent.portal_type == "Batch":
            return parent
        return None

    def generate_fieldvalues(self, count=1):
        """Returns a mapping of '<fieldname>-<count>' to the default value
        of the field or the field value of the source Object (copy from)
        """
        raise NotImplementedError("generate_fieldvalues is not implemented.")

    def is_field_visible(self, field):
        """Check if the field is visible
        """
        context = self.context
        fieldname = field.getName()

        # hide the Client field on client and batch contexts
        if fieldname == "Client" and context.portal_type in ("Client", ):
            return False

        # hide the Batch field on batch contexts
        if fieldname == "Batch" and context.portal_type in ("Batch", ):
            return False

        return True

    def get_fields_with_visibility(self, visibility, mode="add"):
        """Return the Object fields with the current visibility.

        It is recommended to get those values from an AddManagerView
        """
        raise NotImplementedError(
            "get_fields_with_visibility is not implemented.")


class BaseAjaxAddView(BaseAddView):
    """Ajax helpers for an Object Add form
    """
    implements(IPublishTraverse)

    def __init__(self, context, request):
        BaseAddView.__init__(self, context, request)
        self.traverse_subpath = []
        # Errors are aggregated here, and returned together to the browser
        self.errors = {}

    def publishTraverse(self, request, name):
        """ get's called before __call__ for each path name
        """
        self.traverse_subpath.append(name)
        return self

    @returns_json
    def __call__(self):
        """Dispatch the path to a method and return JSON.
        """
        protect.CheckAuthenticator(self.request.form)
        protect.PostOnly(self.request.form)

        if len(self.traverse_subpath) != 1:
            return self.error("Not found", status=404)
        func_name = "ajax_{}".format(self.traverse_subpath[0])
        func = getattr(self, func_name, None)
        if func is None:
            return self.error("Invalid function", status=400)
        return func()

    def error(self, message, status=500, **kw):
        """Set a JSON error object and a status to the response
        """
        self.request.response.setStatus(status)
        result = {"success": False, "errors": message}
        result.update(kw)
        return result

    def to_iso_date(self, dt):
        """Return the ISO representation of a date object
        """
        if dt is None:
            return ""
        if isinstance(dt, DateTime):
            return dt.ISO8601()
        if isinstance(dt, datetime):
            return dt.isoformat()
        raise TypeError("{} is neither an instance of DateTime nor datetime"
                        .format(repr(dt)))

    def get_records(self):
        """Returns a list of Sample records

        All fields coming from `request.form` have a number prefix,
        e.g. `Contact-0`.
        All fields with the same suffix number are grouped together in a
        record.
        Each record represents the data for one column in the Sample Add
        form and contains a mapping of the fieldName (w/o prefix) -> value.

        Example:
        [{"Contact": "Rita Mohale", ...}, {Contact: "Neil Standard"} ...]
        """
        form = self.request.form
        obj_count = self.get_obj_count()

        records = []
        # Group belonging Object fields together
        for objenum in range(obj_count):
            record = {}
            s1 = "-{}".format(objenum)
            keys = filter(lambda key: s1 in key, form.keys())
            for key in keys:
                new_key = key.replace(s1, "")
                value = form.get(key)
                record[new_key] = value
            records.append(record)
        return records

    def get_objs_from_record(self, record, key):
        """Returns a mapping of UID -> object
        """
        uids = self.get_uids_from_record(record, key)
        objs = map(self.get_object_by_uid, uids)
        return dict(zip(uids, objs))

    def get_uids_from_record(self, record, key):
        """Returns a list of parsed UIDs from a single form field identified
        by the given key.

        A form field ending with `_uid` can contain an empty value, a
        single UID or multiple UIDs separated by a comma.

        This method parses the UID value and returns a list of non-empty UIDs.
        """
        value = record.get(key, None)
        if value is None:
            return []
        if isinstance(value, basestring):
            value = value.split(",")
        return filter(lambda uid: uid, value)

    @cache(cache_key)
    def get_base_info(self, obj):
        """Returns the base info of an object
        """
        if obj is None:
            return {}

        info = {
            "id": obj.getId(),
            "uid": obj.UID(),
            "title": obj.Title(),
            "description": obj.Description(),
            "url": obj.absolute_url(),
        }

        return info

    @cache(cache_key)
    def get_container_info(self, obj):
        """Returns the info for a Container
        """
        info = self.get_base_info(obj)
        info.update({})
        return info

    @cache(cache_key)
    def get_preservation_info(self, obj):
        """Returns the info for a Preservation
        """
        info = self.get_base_info(obj)
        info.update({})
        return info

    def ajax_get_global_settings(self):
        """Returns the global Bika settings
        """
        bika_setup = api.get_bika_setup()
        settings = {
            "show_prices": bika_setup.getShowPrices(),
        }
        return settings

    def ajax_recalculate_records(self):
        """Recalculate all Object records and dependencies
        """
        raise NotImplementedError(
            "ajax_recalculate_records is not implemented.")

    def ajax_submit(self):
        """Submit & create the Object
        """
        raise NotImplementedError(
            "ajax_recalculate_records is not implemented.")


1			# -- coding: utf-8 --
2			#
3			# This file is part of SENAITE.CORE
4			#
5			# Copyright 2018 by it's authors.
6			# Some rights reserved. See LICENSE.rst, CONTRIBUTORS.rst.
7
8			from datetime import datetime
9
10			from BTrees.OOBTree import OOBTree
11			from DateTime import DateTime
12			from Products.Five.browser import BrowserView
13			from plone import protect
14			from plone.memoize.volatile import cache
15			from zope.annotation.interfaces import IAnnotations
16			from zope.i18n.locales import locales
17			from zope.interface import implements
18			from zope.publisher.interfaces import IPublishTraverse
19
20			from bika.lims import api
21			from bika.lims import logger
22			from bika.lims.utils import cache_key
23			from bika.lims.utils import returns_json
24
25
26			class BaseManageAddView(BrowserView):
27			"""
28			Base view to create a visibility and order manager for an Add View.
29			"""
30			template = None
31
32			def __init__(self, context, request):
33			BrowserView.__init__(self, context, request)
34			self.context = context
35			self.request = request
36			self.tmp_obj = None
37			self.CONFIGURATION_STORAGE = None
38			self.SKIP_FIELD_ON_COPY = []
39
40			def __call__(self):
41			protect.CheckAuthenticator(self.request.form)
42			form = self.request.form
43			if form.get("submitted", False) and form.get("save", False):
44			order = form.get("order")
45			self.set_field_order(order)
46			visibility = form.get("visibility")
47			self.set_field_visibility(visibility)
48			if form.get("submitted", False) and form.get("reset", False):
49			self.flush()
50			return self.template()
51
52			def get_obj(self):
53			"""
54			This method should return a temporary object. This object should be
55			of the same type as the one we are creating.
56			:return: ATObjectType
57			"""
58			raise NotImplementedError("get_obj is not implemented.")
59
60			def get_annotation(self):
61			bika_setup = api.get_bika_setup()
62			return IAnnotations(bika_setup)
63
64			@property
65			def storage(self):
66			annotation = self.get_annotation()
67			if annotation.get(self.CONFIGURATION_STORAGE) is None:
68			annotation[self.CONFIGURATION_STORAGE] = OOBTree()
69			return annotation[self.CONFIGURATION_STORAGE]
70
71			def flush(self):
72			annotation = self.get_annotation()
73			if annotation.get(self.CONFIGURATION_STORAGE) is not None:
74			del annotation[self.CONFIGURATION_STORAGE]
75
76			def set_field_order(self, order):
77			self.storage.update({"order": order})
78
79			def get_field_order(self):
80			order = self.storage.get("order")
81			if order is None:
82			return map(lambda f: f.getName(), self.get_fields())
83			return order
84
85			def set_field_visibility(self, visibility):
86			self.storage.update({"visibility": visibility})
87
88			def get_field_visibility(self):
89			return self.storage.get("visibility")
90
91			def is_field_visible(self, field):
92			if field.required:
93			return True
94			visibility = self.get_field_visibility()
95			if visibility is None:
96			return True
97			return visibility.get(field.getName(), True)
98
99			def get_field(self, name):
100			"""Get a field of the object by name
101			"""
102			obj = self.get_obj()
103			return obj.getField(name)
104
105			def get_fields(self):
106			"""Return all Object fields
107			"""
108			obj = self.get_obj()
109			return obj.Schema().fields()
110
111			def get_sorted_fields(self):
112			"""Return the sorted fields
113			"""
114			inf = float("inf")
115			order = self.get_field_order()
116
117			def field_cmp(field1, field2):
118			_n1 = field1.getName()
119			_n2 = field2.getName()
120			_i1 = _n1 in order and order.index(_n1) + 1 or inf
121			_i2 = _n2 in order and order.index(_n2) + 1 or inf
122			return cmp(_i1, _i2)
123
124			return sorted(self.get_fields(), cmp=field_cmp)
125
126			def get_fields_with_visibility(self, visibility="edit", mode="add"):
127			"""Return the fields with visibility
128			"""
129			fields = self.get_sorted_fields()
130
131			out = []
132
133			for field in fields:
134			v = field.widget.isVisible(
135			self.context, mode, default='invisible', field=field)
136
137			if self.is_field_visible(field) is False:
138			v = "hidden"
139
140			visibility_guard = True
141			# visibility_guard is a widget field defined in the schema in order
142			# to know the visibility of the widget when the field is related to
143			# a dynamically changing content such as workflows. For instance
144			# those fields related to the workflow will be displayed only if
145			# the workflow is enabled, otherwise they should not be shown.
146			if 'visibility_guard' in dir(field.widget):
147			visibility_guard = eval(field.widget.visibility_guard)
148			if v == visibility and visibility_guard:
149			out.append(field)
150
151			return out
152
153
154			class BaseAddView(BrowserView):
155			"""
156			Base Object Add view
157
158			This class offers the necessary methods to create a Add view.
159			"""
160			template = None
161
162			def __init__(self, context, request):
163			BrowserView.__init__(self, context, request)
164			self.request = request
165			self.context = context
166			self.fieldvalues = {}
167			self.tmp_obj = None
168			self.icon = None
169			self.portal = None
170			self.portal_url = None
171			self.bika_setup = None
172			self.came_from = None
173			self.obj_count = None
174			self.specifications = None
175			self.ShowPrices = None
176			self.SKIP_FIELD_ON_COPY = []
177
178			def __call__(self):
179			self.portal = api.get_portal()
180			self.portal_url = self.portal.absolute_url()
181			self.bika_setup = api.get_bika_setup()
182			self.request.set('disable_plone.rightcolumn', 1)
183			self.came_from = "add"
184			self.tmp_obj = self.get_obj()
185			self.obj_count = self.get_obj_count()
186			self.ShowPrices = self.bika_setup.getShowPrices()
187
188			def get_view_url(self):
189			"""Return the current view url including request parameters
190			"""
191			request = self.request
192			url = request.getURL()
193			qs = request.getHeader("query_string")
194			if not qs:
195			return url
196			return "{}?{}".format(url, qs)
197
198			def get_object_by_uid(self, uid):
199			"""Get the object by UID
200			"""
201			logger.debug("get_object_by_uid::UID={}".format(uid))
202			obj = api.get_object_by_uid(uid, None)
203			if obj is None:
204			logger.warn("!! No object found for UID #{} !!")
205			return obj
206
207			def get_currency(self):
208			"""Returns the configured currency
209			"""
210			bika_setup = api.get_bika_setup()
211			currency = bika_setup.getCurrency()
212			currencies = locales.getLocale('en').numbers.currencies
213			return currencies[currency]
214
215			def get_obj_count(self):
216			"""Return the obj_count request parameter
217			"""
218			try:
219			obj_count = int(self.request.form.get("obj_count", 1))
220			except (TypeError, ValueError):
221			obj_count = 1
222			return obj_count
223
224			def get_obj(self):
225			"""Create a temporary Object to fetch the fields from
226			"""
227			raise NotImplementedError("get_obj is not implemented.")
228
229			def get_obj_schema(self):
230			"""Return the Object schema
231			"""
232			obj = self.get_obj()
233			return obj.Schema()
234
235			def get_obj_fields(self):
236			"""Return the Object schema fields (including extendend fields)
237			"""
238			schema = self.get_obj_schema()
239			return schema.fields()
240
241			def get_fieldname(self, field, objnum):
242			"""Generate a new fieldname with a '-<objnum>' suffix
243			"""
244			name = field.getName()
245			# ensure we have only one suffix
246			base_name = name.split("-")[0]
247			suffix = "-{}".format(objnum)
248			return "{}{}".format(base_name, suffix)
249
250			def get_input_widget(self, fieldname, objnum=0, **kw):
251			"""Get the field widget of the Object in column <objnum>
252
253			:param fieldname: The base fieldname
254			:type fieldname: string
255			"""
256
257			# temporary Object Context
258			context = self.get_obj()
259			# request = self.request
260			schema = context.Schema()
261
262			# get original field in the schema from the base_fieldname
263			base_fieldname = fieldname.split("-")[0]
264			field = context.getField(base_fieldname)
265
266			# fieldname with -<objnum> suffix
267			new_fieldname = self.get_fieldname(field, objnum)
268			new_field = field.copy(name=new_fieldname)
269
270			# get the default value for this field
271			fieldvalues = self.fieldvalues
272			field_value = fieldvalues.get(new_fieldname)
273			# request_value = request.form.get(new_fieldname)
274			# value = request_value or field_value
275			value = field_value
276
277			def getAccessor(instance):
278			def accessor(**kw):
279			return value
280			return accessor
281
282			# inject the new context for the widget renderer
283			# see: Products.Archetypes.Renderer.render
284			kw["here"] = context
285			kw["context"] = context
286			kw["fieldName"] = new_fieldname
287
288			# make the field available with this name
289			# XXX: This is actually a hack to make the widget
290			# available in the template
291			schema._fields[new_fieldname] = new_field
292			new_field.getAccessor = getAccessor
293
294			# set the default value
295			form = dict()
296			form[new_fieldname] = value
297			self.request.form.update(form)
298
299			logger.info(
300			"get_input_widget: fieldname={} objnum={} -> "
301			"new_fieldname={} value={}"
302			.format(fieldname, objnum, new_fieldname, value))
303			widget = context.widget(new_fieldname, **kw)
304			return widget
305
306			def get_copy_from(self):
307			"""Returns a mapping of UID index -> Object
308			"""
309			# Create a mapping of source Objects for copy
310			copy_from = self.request.form.get("copy_from", "").split(",")
311			# clean out empty strings
312			copy_from_uids = filter(lambda x: x, copy_from)
313			out = dict().fromkeys(range(len(copy_from_uids)))
314			for n, uid in enumerate(copy_from_uids):
315			obj = self.get_object_by_uid(uid)
316			if obj is None:
317			continue
318			out[n] = obj
319			logger.info("get_copy_from: uids={}".format(copy_from_uids))
320			return out
321
322			def get_default_value(self, field, context):
323			"""Get the default value of the field
324			"""
325			name = field.getName()
326			default = field.getDefault(context)
327			if name == "Batch":
328			batch = self.get_batch()
329			if batch is not None:
330			default = batch
331			if name == "Client":
332			client = self.get_client()
333			if client is not None:
334			default = client
335			if name == "Contact":
336			contact = self.get_default_contact()
337			if contact is not None:
338			default = contact
339			logger.info(
340			"get_default_value: context={} field={} value={}"
341			.format(context, name, default))
342			return default
343
344			def get_field_value(self, field, context):
345			"""Get the stored value of the field
346			"""
347			name = field.getName()
348			value = context.getField(name).get(context)
349			logger.info(
350			"get_field_value: context={} field={} value={}"
351			.format(context, name, value))
352			return value
353
354			def get_client(self):
355			"""Returns the Client
356			"""
357			context = self.context
358			parent = api.get_parent(context)
359			if context.portal_type == "Client":
360			return context
361			elif parent.portal_type == "Client":
362			return parent
363			elif context.portal_type == "Batch":
364			return context.getClient()
365			elif parent.portal_type == "Batch":
366			return context.getClient()
367			return None
368
369			def get_batch(self):
370			"""Returns the Batch
371			"""
372			context = self.context
373			parent = api.get_parent(context)
374			if context.portal_type == "Batch":
375			return context
376			elif parent.portal_type == "Batch":
377			return parent
378			return None
379
380			def generate_fieldvalues(self, count=1):
381			"""Returns a mapping of '<fieldname>-<count>' to the default value
382			of the field or the field value of the source Object (copy from)
383			"""
384			raise NotImplementedError("generate_fieldvalues is not implemented.")
385
386			def is_field_visible(self, field):
387			"""Check if the field is visible
388			"""
389			context = self.context
390			fieldname = field.getName()
391
392			# hide the Client field on client and batch contexts
393			if fieldname == "Client" and context.portal_type in ("Client", ):
394			return False
395
396			# hide the Batch field on batch contexts
397			if fieldname == "Batch" and context.portal_type in ("Batch", ):
398			return False
399
400			return True
401
402			def get_fields_with_visibility(self, visibility, mode="add"):
403			"""Return the Object fields with the current visibility.
404
405			It is recommended to get those values from an AddManagerView
406			"""
407			raise NotImplementedError(
408			"get_fields_with_visibility is not implemented.")
409
410
411			class BaseAjaxAddView(BaseAddView):
412			"""Ajax helpers for an Object Add form
413			"""
414			implements(IPublishTraverse)
415
416			def __init__(self, context, request):
417			BaseAddView.__init__(self, context, request)
418			self.traverse_subpath = []
419			# Errors are aggregated here, and returned together to the browser
420			self.errors = {}
421
422			def publishTraverse(self, request, name):
423			""" get's called before __call__ for each path name
424			"""
425			self.traverse_subpath.append(name)
426			return self
427
428			@returns_json
429			def __call__(self):
430			"""Dispatch the path to a method and return JSON.
431			"""
432			protect.CheckAuthenticator(self.request.form)
433			protect.PostOnly(self.request.form)
434
435			if len(self.traverse_subpath) != 1:
436			return self.error("Not found", status=404)
437			func_name = "ajax_{}".format(self.traverse_subpath[0])
438			func = getattr(self, func_name, None)
439			if func is None:
440			return self.error("Invalid function", status=400)
441			return func()
442
443			def error(self, message, status=500, **kw):
444			"""Set a JSON error object and a status to the response
445			"""
446			self.request.response.setStatus(status)
447			result = {"success": False, "errors": message}
448			result.update(kw)
449			return result
450
451			def to_iso_date(self, dt):
452			"""Return the ISO representation of a date object
453			"""
454			if dt is None:
455			return ""
456			if isinstance(dt, DateTime):
457			return dt.ISO8601()
458			if isinstance(dt, datetime):
459			return dt.isoformat()
460			raise TypeError("{} is neither an instance of DateTime nor datetime"
461			.format(repr(dt)))
462
463			def get_records(self):
464			"""Returns a list of Sample records
465
466			All fields coming from `request.form` have a number prefix,
467			e.g. `Contact-0`.
468			All fields with the same suffix number are grouped together in a
469			record.
470			Each record represents the data for one column in the Sample Add
471			form and contains a mapping of the fieldName (w/o prefix) -> value.
472
473			Example:
474			[{"Contact": "Rita Mohale", ...}, {Contact: "Neil Standard"} ...]
475			"""
476			form = self.request.form
477			obj_count = self.get_obj_count()
478
479			records = []
480			# Group belonging Object fields together
481			for objenum in range(obj_count):
482			record = {}
483			s1 = "-{}".format(objenum)
484			keys = filter(lambda key: s1 in key, form.keys())
485			for key in keys:
486			new_key = key.replace(s1, "")
487			value = form.get(key)
488			record[new_key] = value
489			records.append(record)
490			return records
491
492			def get_objs_from_record(self, record, key):
493			"""Returns a mapping of UID -> object
494			"""
495			uids = self.get_uids_from_record(record, key)
496			objs = map(self.get_object_by_uid, uids)
497			return dict(zip(uids, objs))
498
499			def get_uids_from_record(self, record, key):
500			"""Returns a list of parsed UIDs from a single form field identified
501			by the given key.
502
503			A form field ending with `_uid` can contain an empty value, a
504			single UID or multiple UIDs separated by a comma.
505
506			This method parses the UID value and returns a list of non-empty UIDs.
507			"""
508			value = record.get(key, None)
509			if value is None:
510			return []
511			if isinstance(value, basestring):
512			value = value.split(",")
513			return filter(lambda uid: uid, value)
514
515			@cache(cache_key)
516			def get_base_info(self, obj):
517			"""Returns the base info of an object
518			"""
519			if obj is None:
520			return {}
521
522			info = {
523			"id": obj.getId(),
524			"uid": obj.UID(),
525			"title": obj.Title(),
526			"description": obj.Description(),
527			"url": obj.absolute_url(),
528			}
529
530			return info
531
532			@cache(cache_key)
533			def get_container_info(self, obj):
534			"""Returns the info for a Container
535			"""
536			info = self.get_base_info(obj)
537			info.update({})
538			return info
539
540			@cache(cache_key)
541			def get_preservation_info(self, obj):
542			"""Returns the info for a Preservation
543			"""
544			info = self.get_base_info(obj)
545			info.update({})
546			return info
547
548			def ajax_get_global_settings(self):
549			"""Returns the global Bika settings
550			"""
551			bika_setup = api.get_bika_setup()
552			settings = {
553			"show_prices": bika_setup.getShowPrices(),
554			}
555			return settings
556
557			def ajax_recalculate_records(self):
558			"""Recalculate all Object records and dependencies
559			"""
560			raise NotImplementedError(
561			"ajax_recalculate_records is not implemented.")
562
563			def ajax_submit(self):
564			"""Submit & create the Object
565			"""
566			raise NotImplementedError(
567			"ajax_recalculate_records is not implemented.")
568

senaite / senaite.core

Pull Request — master (#579)

BaseAddView.get_default_value() C

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