76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
# -*- coding: utf-8; -*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2020 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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Views with info about the underlying Rattail tables
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"""
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from __future__ import unicode_literals, absolute_import
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from tailbone.views import MasterView
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class TablesView(MasterView):
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"""
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Master view for tables
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"""
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normalized_model_name = 'table'
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model_key = 'name'
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model_title = "Table"
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creatable = False
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editable = False
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deletable = False
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viewable = False
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filterable = False
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pageable = False
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grid_columns = [
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'name',
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'row_count',
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]
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def get_data(self, **kwargs):
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"""
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Fetch existing table names and estimate row counts via PG SQL
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"""
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# note that we only show 'public' schema tables, i.e. avoid the 'batch'
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# schema, at least for now? maybe should include all, plus show the
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# schema name within the results grid?
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sql = """
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select relname, n_live_tup
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from pg_stat_user_tables
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where schemaname = 'public'
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order by n_live_tup desc;
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"""
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result = self.Session.execute(sql)
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return [dict(name=row['relname'], row_count=row['n_live_tup'])
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for row in result]
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def configure_grid(self, g):
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g.sorters['name'] = g.make_simple_sorter('name', foldcase=True)
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g.sorters['row_count'] = g.make_simple_sorter('row_count')
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g.set_sort_defaults('name')
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def includeme(config):
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TablesView.defaults(config)
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