root / snf-astakos-app / astakos / im / tables.py @ b87429e1
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from collections import defaultdict |
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from django.utils.translation import ugettext as _ |
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from django.utils.safestring import mark_safe |
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from django.template import Context, Template |
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from django.template.loader import render_to_string |
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from django.core.exceptions import PermissionDenied |
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from django_tables2 import A |
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import django_tables2 as tables |
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from astakos.im.models import * |
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from astakos.im.templatetags.filters import truncatename |
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from astakos.im.functions import (join_project_checks, |
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leave_project_checks, |
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cancel_membership_checks) |
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DEFAULT_DATE_FORMAT = "d/m/Y"
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class LinkColumn(tables.LinkColumn): |
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def __init__(self, *args, **kwargs): |
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self.coerce = kwargs.pop('coerce', None) |
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self.append = kwargs.pop('append', None) |
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super(LinkColumn, self).__init__(*args, **kwargs) |
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def render(self, value, record, bound_column): |
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link = super(LinkColumn, self).render(value, record, bound_column) |
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extra = ''
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if self.append: |
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if callable(self.append): |
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extra = self.append(record, bound_column)
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else:
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extra = self.append
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return mark_safe(link + extra)
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def render_link(self, uri, text, attrs=None): |
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if self.coerce: |
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text = self.coerce(text)
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return super(LinkColumn, self).render_link(uri, text, attrs) |
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# Helper columns
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class RichLinkColumn(tables.TemplateColumn): |
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method = 'POST'
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confirm_prompt = _('Yes')
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cancel_prompt = _('No')
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confirm = True
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prompt = _('Confirm action ?')
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action_tpl = None
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action = _('Action')
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extra_context = lambda record, table, column: {}
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url = None
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url_args = () |
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resolve_func = None
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def __init__(self, *args, **kwargs): |
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kwargs['template_name'] = kwargs.get('template_name', |
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'im/table_rich_link_column.html')
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for attr in ['method', 'confirm_prompt', |
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'cancel_prompt', 'prompt', 'url', |
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'url_args', 'action', 'confirm', |
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'resolve_func', 'extra_context']: |
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setattr(self, attr, kwargs.pop(attr, getattr(self, attr))) |
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super(RichLinkColumn, self).__init__(*args, **kwargs) |
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def render(self, record, table, value, bound_column, **kwargs): |
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# If the table is being rendered using `render_table`, it hackily
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# attaches the context to the table as a gift to `TemplateColumn`. If
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# the table is being rendered via `Table.as_html`, this won't exist.
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content = ''
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for extra_context in self.get_template_context(record, table, value, |
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bound_column, **kwargs): |
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context = getattr(table, 'context', Context()) |
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context.update(extra_context) |
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try:
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if self.template_code: |
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content += Template(self.template_code).render(context)
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else:
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content += render_to_string(self.template_name, context)
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finally:
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context.pop() |
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return mark_safe(content)
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def get_confirm(self, record, table): |
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if callable(self.confirm): |
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return self.confirm(record, table) |
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return self.confirm |
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def resolved_url(self, record, table): |
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if callable(self.url): |
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return self.url(record, table) |
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if not self.url: |
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return '#' |
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args = list(self.url_args) |
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for index, arg in enumerate(args): |
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if isinstance(arg, A): |
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args[index] = arg.resolve(record) |
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return reverse(self.url, args=args) |
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def get_action(self, record, table): |
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if callable(self.action): |
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return self.action(record, table) |
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return self.action |
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def get_prompt(self, record, table): |
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if callable(self.prompt): |
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return self.prompt(record, table) |
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return self.prompt |
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def get_template_context(self, record, table, value, bound_column, **kwargs): |
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context = {'default': bound_column.default,
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'record': record,
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'value': value,
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'col': self, |
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'url': self.resolved_url(record, table), |
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'prompt': self.get_prompt(record, table), |
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'action': self.get_action(record, table), |
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'confirm': self.get_confirm(record, table) |
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} |
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# decide whether to return dict or a list of dicts in case we want to
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# display multiple actions within a cell.
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if self.extra_context: |
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contexts = [] |
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extra_contexts = self.extra_context(record, table, self) |
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if isinstance(extra_contexts, list): |
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for extra_context in extra_contexts: |
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newcontext = dict(context)
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newcontext.update(extra_context) |
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contexts.append(newcontext) |
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else:
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context.update(extra_contexts) |
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contexts = [context] |
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else:
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contexts = [context] |
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return contexts
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def action_extra_context(application, table, self): |
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user = table.user |
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url, action, confirm, prompt = '', '', True, '' |
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append_url = ''
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can_join = can_leave = can_cancel = False
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project = application.get_project() |
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if project:
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try:
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join_project_checks(project) |
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can_join = True
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except PermissionDenied, e:
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pass
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try:
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leave_project_checks(project) |
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can_leave = True
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except PermissionDenied:
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pass
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try:
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cancel_membership_checks(project) |
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can_cancel = True
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except PermissionDenied:
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pass
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membership = user.get_membership(project) |
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if membership is not None: |
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if can_leave and membership.can_leave(): |
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url = 'astakos.im.views.project_leave'
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action = _('Leave')
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confirm = True
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prompt = _('Are you sure you want to leave from the project?')
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elif can_cancel and membership.can_cancel(): |
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url = 'astakos.im.views.project_cancel'
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action = _('Cancel')
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confirm = True
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prompt = _('Are you sure you want to cancel the join request?')
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elif can_join:
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url = 'astakos.im.views.project_join'
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action = _('Join')
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confirm = True
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prompt = _('Are you sure you want to join this project?')
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else:
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action = ''
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confirm = False
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url = None
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url = reverse(url, args=(application.chain, )) + append_url if url else '' |
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return {'action': action, |
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'confirm': confirm,
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'url': url,
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'prompt': prompt}
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class UserTable(tables.Table): |
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def __init__(self, *args, **kwargs): |
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self.user = None |
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if 'request' in kwargs and kwargs.get('request').user: |
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self.user = kwargs.get('request').user |
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if 'user' in kwargs: |
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self.user = kwargs.pop('user') |
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super(UserTable, self).__init__(*args, **kwargs) |
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def project_name_append(application, column): |
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if application.has_pending_modifications():
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return mark_safe("<br /><i class='tiny'>%s</i>" % \ |
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_('modifications pending'))
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return u'' |
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# Table classes
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class UserProjectApplicationsTable(UserTable): |
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caption = _('My projects')
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name = LinkColumn('astakos.im.views.project_detail',
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coerce=lambda x: truncatename(x, 25), |
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append=project_name_append, |
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args=(A('chain'),))
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issue_date = tables.DateColumn(verbose_name=_('Application'), format=DEFAULT_DATE_FORMAT)
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start_date = tables.DateColumn(format=DEFAULT_DATE_FORMAT) |
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end_date = tables.DateColumn(verbose_name=_('Expiration'), format=DEFAULT_DATE_FORMAT)
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members_count = tables.Column(verbose_name=_("Members"), default=0, |
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orderable=False)
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membership_status = tables.Column(verbose_name=_("Status"), empty_values=(),
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orderable=False)
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project_action = RichLinkColumn(verbose_name=_('Action'),
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extra_context=action_extra_context, |
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orderable=False)
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def render_membership_status(self, record, *args, **kwargs): |
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if self.user.owns_application(record): |
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return record.state_display()
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else:
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status = record.user_status(self.user)
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return record.user_status_display(self.user) |
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def render_members_count(self, record, *args, **kwargs): |
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append = ""
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application = record |
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project = application.get_project() |
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if project is None: |
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append = mark_safe("<i class='tiny'>%s</i>" % (_('pending'),)) |
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c = project.count_pending_memberships() |
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if c > 0: |
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append = mark_safe("<i class='tiny'> - %d %s</i>"
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% (c, _('pending')))
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return mark_safe(str(record.members_count()) + append) |
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class Meta: |
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model = ProjectApplication |
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fields = ('name', 'membership_status', 'issue_date', 'end_date', 'members_count') |
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attrs = {'id': 'projects-list', 'class': 'my-projects alt-style'} |
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template = "im/table_render.html"
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empty_text = _('No projects')
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exclude = ('start_date', )
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class ProjectModificationApplicationsTable(UserProjectApplicationsTable): |
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name = LinkColumn('astakos.im.views.project_detail',
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verbose_name=_('Action'),
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coerce= lambda x: 'review', |
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args=(A('pk'),))
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class Meta: |
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attrs = {'id': 'projects-list', 'class': 'my-projects alt-style'} |
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fields = ('issue_date', 'membership_status') |
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exclude = ('start_date', 'end_date', 'members_count', 'project_action') |
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def member_action_extra_context(membership, table, col): |
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context = [] |
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urls, actions, prompts, confirms = [], [], [], [] |
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if membership.state == ProjectMembership.REQUESTED:
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urls = ['astakos.im.views.project_reject_member',
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'astakos.im.views.project_accept_member']
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actions = [_('Reject'), _('Accept')] |
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prompts = [_('Are you sure you want to reject this member ?'),
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_('Are you sure you want to accept this member ?')]
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confirms = [True, True] |
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if membership.state == ProjectMembership.ACCEPTED:
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urls = ['astakos.im.views.project_remove_member']
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actions = [_('Remove')]
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if table.user == membership.person:
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actions = [_('Leave')]
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prompts = [_('Are you sure you want to remove this member ?')]
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confirms = [True, True] |
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for i, url in enumerate(urls): |
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context.append(dict(url=reverse(url, args=(table.project.pk,
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membership.person.pk)), |
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action=actions[i], prompt=prompts[i], |
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confirm=confirms[i])) |
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return context
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class ProjectMembersTable(UserTable): |
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name = tables.Column(accessor="person.last_name", verbose_name=_('Name')) |
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email = tables.Column(accessor="person.email", verbose_name=_('Email')) |
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status = tables.Column(accessor="state", verbose_name=_('Status')) |
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project_action = RichLinkColumn(verbose_name=_('Action'),
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extra_context=member_action_extra_context, |
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orderable=False)
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def __init__(self, project, *args, **kwargs): |
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self.project = project
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super(ProjectMembersTable, self).__init__(*args, **kwargs) |
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if not self.user.owns_project(self.project): |
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self.exclude = ('project_action', ) |
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def render_name(self, value, record, *args, **kwargs): |
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return record.person.realname
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def render_status(self, value, *args, **kwargs): |
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return USER_STATUS_DISPLAY.get(value, 'Unknown') |
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class Meta: |
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template = "im/table_render.html"
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model = ProjectMembership |
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fields = ('name', 'status') |
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sequence = ('name', 'email', 'status', 'project_action') |
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attrs = {'id': 'members-table', 'class': 'members-table alt-style'} |
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empty_text = _('No members')
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