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# -*- coding: utf-8 -*- |
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import json |
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import string |
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import six |
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from bika.lims import api |
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from senaite.core.interfaces import ISenaiteFormLayer |
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from senaite.core.schema.interfaces import IUIDReferenceField |
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from senaite.core.z3cform.interfaces import IUIDReferenceWidget |
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from senaite.jsonapi.interfaces import IInfo |
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from z3c.form import interfaces |
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from z3c.form.browser import widget |
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from z3c.form.browser.textlines import TextLinesWidget |
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from z3c.form.converter import TextLinesConverter |
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from z3c.form.interfaces import IDataConverter |
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from z3c.form.interfaces import IFieldWidget |
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from z3c.form.widget import FieldWidget |
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from zope.component import adapter |
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from zope.interface import implementer |
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DISPLAY_TEMPLATE = "<a href='${url}' _target='blank'>${title} ${uid}</a>" |
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@adapter(IUIDReferenceField, interfaces.IWidget) |
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class UIDReferenceDataConverter(TextLinesConverter): |
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"""Converts the raw field data for widget/field usage |
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""" |
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def toWidgetValue(self, value): |
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"""Converts a list of UIDs for the display/hidden widget |
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returns a list of UIDs when widget is in "display" mode |
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returns a unicode string when widget is in "hidden" mode |
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""" |
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if self.widget.mode == "display": |
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return value |
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return super(UIDReferenceDataConverter, self).toWidgetValue(value) |
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def toFieldValue(self, value): |
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"""Converts a unicode string to a list of UIDs |
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""" |
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# remove any blank lines at the end |
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value = value.rstrip("\r\n") |
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return super(UIDReferenceDataConverter, self).toFieldValue(value) |
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@implementer(IUIDReferenceWidget) |
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class UIDReferenceWidget(TextLinesWidget): |
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"""Senaite UID reference widget |
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""" |
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klass = u"senaite-uidreference-widget" |
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def __init__(self, request, *args, **kw): |
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super(UIDReferenceWidget, self).__init__(request) |
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self.request = request |
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def update(self): |
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super(UIDReferenceWidget, self).update() |
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widget.addFieldClass(self) |
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def get_display_template(self): |
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return getattr(self, "display_template", DISPLAY_TEMPLATE) |
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def get_value(self): |
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"""Extract the value from the request or get it from the field |
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""" |
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# get the processed value from the `update` method |
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value = self.value |
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# the value might come from the request, e.g. on object creation |
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if isinstance(value, six.string_types): |
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value = IDataConverter(self).toFieldValue(value) |
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# we handle always lists in the templates |
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if value is None: |
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return [] |
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if not isinstance(value, (list, tuple)): |
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value = [value] |
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# just to be sure (paranoid) |
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return [uid for uid in value if api.is_uid(uid)] |
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def get_api_url(self): |
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portal = api.get_portal() |
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portal_url = api.get_url(portal) |
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api_url = "{}/@@API/senaite/v1".format(portal_url) |
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return api_url |
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def get_catalog(self): |
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return getattr(self, "catalog", "portal_catalog") |
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def get_query(self): |
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return getattr(self, "query", {}) |
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def get_columns(self): |
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return getattr(self, "columns", []) |
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def get_limit(self): |
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return getattr(self, "limit", 25) |
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def is_multi_valued(self): |
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return getattr(self.field, "multi_valued", False) |
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def get_input_widget_attributes(self): |
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"""Return input widget attributes for the ReactJS component |
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""" |
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uids = self.get_value() |
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attributes = { |
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"data-id": self.id, |
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"data-name": self.name, |
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"data-uids": uids, |
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"data-api_url": self.get_api_url(), |
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"data-records": dict(zip(uids, map(self.get_obj_info, uids))), |
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"data-query": self.get_query(), |
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"data-catalog": self.get_catalog(), |
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"data-columns": self.get_columns(), |
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"data-display_template": self.get_display_template(), |
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"data-limit": self.get_limit(), |
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"data-multi_valued": self.is_multi_valued(), |
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"data-disabled": self.disabled or False, |
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"data-readonly": self.readonly or False, |
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} |
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# convert all attributes to JSON |
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for key, value in attributes.items(): |
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attributes[key] = json.dumps(value) |
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return attributes |
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def get_obj_info(self, uid): |
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"""Returns a dictionary with the object info |
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""" |
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obj = api.get_object(uid) |
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obj_info = IInfo(obj).to_dict() |
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obj_info["uid"] = uid |
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obj_info["url"] = api.get_url(obj) |
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return obj_info |
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def render_reference(self, uid): |
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"""Returns a rendered HTML element for the reference |
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""" |
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template = string.Template(self.get_display_template()) |
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obj_info = self.get_obj_info(uid) |
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return template.safe_substitute(obj_info) |
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@adapter(IUIDReferenceField, ISenaiteFormLayer) |
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@implementer(IFieldWidget) |
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def UIDReferenceWidgetFactory(field, request): |
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"""Widget factory for UIDReferenceField |
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""" |
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return FieldWidget(field, UIDReferenceWidget(request)) |
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senaite /
senaite.core
