def _view_project(node, auth, primary=False):
    user = auth.user

    parent = node.parent_node
    if user:
        bookmark_collection = find_bookmark_collection(user)
        bookmark_collection_id = bookmark_collection._id
        in_bookmark_collection = bookmark_collection.pointing_at(node._primary_key) is not None
    else:
        in_bookmark_collection = False
        bookmark_collection_id = ''
    view_only_link = auth.private_key or request.args.get('view_only', '').strip('/')
    anonymous = has_anonymous_link(node, auth)
    widgets, configs, js, css = _render_addon(node)
    redirect_url = node.url + '?view_only=None'

    disapproval_link = ''
    if (node.is_pending_registration and node.has_permission(user, ADMIN)):
        disapproval_link = node.root.registration_approval.stashed_urls.get(user._id, {}).get('reject', '')

    # Before page load callback; skip if not primary call
    if primary:
        for addon in node.get_addons():
            messages = addon.before_page_load(node, user) or []
            for message in messages:
                status.push_status_message(message, kind='info', dismissible=False, trust=True)
    data = {
        'node': {
            'disapproval_link': disapproval_link,
            'id': node._primary_key,
            'title': node.title,
            'category': node.category_display,
            'category_short': node.category,
            'node_type': node.project_or_component,
            'description': node.description or '',
            'license': serialize_node_license_record(node.license),
            'url': node.url,
            'api_url': node.api_url,
            'absolute_url': node.absolute_url,
            'redirect_url': redirect_url,
            'display_absolute_url': node.display_absolute_url,
            'update_url': node.api_url_for('update_node'),
            'in_dashboard': in_bookmark_collection,
            'is_public': node.is_public,
            'is_archiving': node.archiving,
            'date_created': iso8601format(node.date_created),
            'date_modified': iso8601format(node.logs[-1].date) if node.logs else '',
            'tags': [tag._primary_key for tag in node.tags],
            'children': bool(node.nodes_active),
            'is_registration': node.is_registration,
            'is_pending_registration': node.is_pending_registration,
            'is_retracted': node.is_retracted,
            'is_pending_retraction': node.is_pending_retraction,
            'retracted_justification': getattr(node.retraction, 'justification', None),
            'embargo_end_date': node.embargo_end_date.strftime("%A, %b. %d, %Y") if node.embargo_end_date else False,
            'is_pending_embargo': node.is_pending_embargo,
            'is_embargoed': node.is_embargoed,
            'is_pending_embargo_termination': node.is_embargoed and (
                node.embargo_termination_approval and
                node.embargo_termination_approval.is_pending_approval
            ),
            'registered_from_url': node.registered_from.url if node.is_registration else '',
            'registered_date': iso8601format(node.registered_date) if node.is_registration else '',
            'root_id': node.root._id if node.root else None,
            'registered_meta': node.registered_meta,
            'registered_schemas': serialize_meta_schemas(node.registered_schema),
            'registration_count': node.registrations_all.count(),
            'is_fork': node.is_fork,
            'forked_from_id': node.forked_from._primary_key if node.is_fork else '',
            'forked_from_display_absolute_url': node.forked_from.display_absolute_url if node.is_fork else '',
            'forked_date': iso8601format(node.forked_date) if node.is_fork else '',
            'fork_count': node.forks.count(),
            'templated_count': node.templated_list.count(),
            'watched_count': node.watches.count(),
            'private_links': [x.to_json() for x in node.private_links_active],
            'link': view_only_link,
            'anonymous': anonymous,
            'points': len(node.get_points(deleted=False, folders=False)),
            'piwik_site_id': node.piwik_site_id,
            'comment_level': node.comment_level,
            'has_comments': bool(Comment.find(Q('node', 'eq', node))),
            'has_children': bool(Comment.find(Q('node', 'eq', node))),
            'identifiers': {
                'doi': node.get_identifier_value('doi'),
                'ark': node.get_identifier_value('ark'),
            },
            'institution': {
                'name': node.primary_institution.name if node.primary_institution else None,
                'logo_path': node.primary_institution.logo_path if node.primary_institution else None,
                'id': node.primary_institution._id if node.primary_institution else None
            },
            'alternative_citations': [citation.to_json() for citation in node.alternative_citations],
            'has_draft_registrations': node.has_active_draft_registrations,
            'contributors': [contributor._id for contributor in node.contributors]
        },
        'parent_node': {
            'exists': parent is not None,
            'id': parent._primary_key if parent else '',
            'title': parent.title if parent else '',
            'category': parent.category_display if parent else '',
            'url': parent.url if parent else '',
            'api_url': parent.api_url if parent else '',
            'absolute_url': parent.absolute_url if parent else '',
            'registrations_url': parent.web_url_for('node_registrations') if parent else '',
            'is_public': parent.is_public if parent else '',
            'is_contributor': parent.is_contributor(user) if parent else '',
            'can_view': parent.can_view(auth) if parent else False
        },
        'user': {
            'is_contributor': node.is_contributor(user),
            'is_admin': node.has_permission(user, ADMIN),
            'is_admin_parent': parent.is_admin_parent(user) if parent else False,
            'can_edit': (node.can_edit(auth)
                         and not node.is_registration),
            'has_read_permissions': node.has_permission(user, READ),
            'permissions': node.get_permissions(user) if user else [],
            'is_watching': user.is_watching(node) if user else False,
            'piwik_token': user.piwik_token if user else '',
            'id': user._id if user else None,
            'username': user.username if user else None,
            'fullname': user.fullname if user else '',
            'can_comment': node.can_comment(auth),
            'show_wiki_widget': _should_show_wiki_widget(node, user),
            'dashboard_id': bookmark_collection_id,
            'institutions': get_affiliated_institutions(user) if user else [],
        },
        'badges': _get_badge(user),
        # TODO: Namespace with nested dicts
        'addons_enabled': node.get_addon_names(),
        'addons': configs,
        'addon_widgets': widgets,
        'addon_widget_js': js,
        'addon_widget_css': css,
        'node_categories': Node.CATEGORY_MAP
    }
    return data
Find an appropriate step size using backtracking line search.
dataset/ETHPy150Open CenterForOpenScience/osf.io/website/project/views/node.py/_view_project--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/optimize/_lsq/trf_linear.py/backtracking