# -*- coding: utf-8 -*-

"""
Copyright [2009-2017] EMBL-European Bioinformatics Institute
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""

from ..db import cursor


def ranges_between(start, stop, max_size):
    for start in xrange(start, stop, max_size):
        last = min(start + max_size, stop)
        yield (start, last)

    if last < stop:
        yield (last, stop)


def upi_ranges(dbconf, max_size):
    """
    This will create range of the ids for all UPI's in the database.
    """

    with cursor(dbconf) as cur:
        cur.execute('select max(id) from rna')
        stop = 20  # cur.fetchone()[0]

    return ranges_between(1, stop, max_size)

# -*- coding: utf-8 -*-

"""
Copyright [2009-2017] EMBL-European Bioinformatics Institute
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""

from ..db import cursor


def ranges_between(start, stop, max_size):
    for start in xrange(start, stop, max_size):
        last = min(start + max_size, stop)
        yield (start, last)

    if last < stop:
        yield (last, stop)


def upi_ranges(dbconf, max_size):
    """
    This will create range of the ids for all UPI's in the database.
    """

    with cursor(dbconf) as cur:
        cur.execute('select max(id) from rna')
        stop = cur.fetchone()[0]

    return ranges_between(1, stop, max_size)

Remove testing code