Auto Check Availability

# Available variables:
#  - env: Odoo Environment on which the action is triggered
#  - model: Odoo Model of the record on which the action is triggered; is a
#           void recordset
#  - record: record on which the action is triggered; may be
#            void
#  - records: recordset of all records on which the action is triggered in
#             multi-mode; may be void
#  - time, datetime, dateutil, timezone: useful Python libraries
#  - log: log(message, level='info'): logging function to record debug
#         information in ir.logging table
#  - Warning: Warning Exception to use with raise
# To return an action, assign: action = {...}

delivery_orders_details_to_ready = []

delivery_orders = env['stock.picking'].search(
    [
        ('name', 'like', '%WH%'),
        ('state', '=', 'confirmed'),
    ],
    limit=2000,
    order='create_date asc',
)
env.cr.commit()

for delivery_order in delivery_orders:
    delivery_order.action_assign()
    env.cr.commit()

    if delivery_order.state == 'assigned':
        delivery_orders_details_to_ready.append((
            delivery_order.id,
            delivery_order.name,
        ))

    log(
        ((
            'Finished Running Check Availability on Delivery Order with ID: {} and Name: {}'
        )).format(delivery_order.id, delivery_order.name),
        level='info',
    )
    env.cr.commit()

log(
    ((
        'These delivery orders (ID and name pair) has just had their state '
        'changed from "Waiting" to "Ready": {}, total: {}.'
    )).format(
        delivery_orders_details_to_ready,
        len(delivery_orders_details_to_ready)
    )
)
env.cr.commit()