flectra/addons/stock/report/report_stock_forecast.py

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# -*- coding: utf-8 -*-
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from flectra import api, fields, models, tools
class ReportStockForecat(models.Model):
_name = 'report.stock.forecast'
_auto = False
date = fields.Date(string='Date')
product_id = fields.Many2one('product.product', string='Product', readonly=True)
product_tmpl_id = fields.Many2one('product.template', string='Product Template', related='product_id.product_tmpl_id', readonly=True)
cumulative_quantity = fields.Float(string='Cumulative Quantity', readonly=True)
quantity = fields.Float(readonly=True)
@api.model_cr
def init(self):
tools.drop_view_if_exists(self._cr, 'report_stock_forecast')
self._cr.execute("""CREATE or REPLACE VIEW report_stock_forecast AS (SELECT
MIN(id) as id,
product_id as product_id,
date as date,
sum(product_qty) AS quantity,
sum(sum(product_qty)) OVER (PARTITION BY product_id ORDER BY date) AS cumulative_quantity
FROM
(SELECT
MIN(id) as id,
MAIN.product_id as product_id,
SUB.date as date,
CASE WHEN MAIN.date = SUB.date THEN sum(MAIN.product_qty) ELSE 0 END as product_qty
FROM
(SELECT
MIN(sq.id) as id,
sq.product_id,
date_trunc('week', to_date(to_char(CURRENT_DATE, 'YYYY/MM/DD'), 'YYYY/MM/DD')) as date,
SUM(sq.quantity) AS product_qty
FROM
stock_quant as sq
LEFT JOIN
product_product ON product_product.id = sq.product_id
LEFT JOIN
stock_location location_id ON sq.location_id = location_id.id
WHERE
location_id.usage = 'internal'
GROUP BY date, sq.product_id
UNION ALL
SELECT
MIN(-sm.id) as id,
sm.product_id,
CASE WHEN sm.date_expected > CURRENT_DATE
THEN date_trunc('week', to_date(to_char(sm.date_expected, 'YYYY/MM/DD'), 'YYYY/MM/DD'))
ELSE date_trunc('week', to_date(to_char(CURRENT_DATE, 'YYYY/MM/DD'), 'YYYY/MM/DD')) END
AS date,
SUM(sm.product_qty) AS product_qty
FROM
stock_move as sm
LEFT JOIN
product_product ON product_product.id = sm.product_id
LEFT JOIN
stock_location dest_location ON sm.location_dest_id = dest_location.id
LEFT JOIN
stock_location source_location ON sm.location_id = source_location.id
WHERE
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sm.state IN ('confirmed','partially_available','assigned','waiting') and
source_location.usage != 'internal' and dest_location.usage = 'internal'
GROUP BY sm.date_expected,sm.product_id
UNION ALL
SELECT
MIN(-sm.id) as id,
sm.product_id,
CASE WHEN sm.date_expected > CURRENT_DATE
THEN date_trunc('week', to_date(to_char(sm.date_expected, 'YYYY/MM/DD'), 'YYYY/MM/DD'))
ELSE date_trunc('week', to_date(to_char(CURRENT_DATE, 'YYYY/MM/DD'), 'YYYY/MM/DD')) END
AS date,
SUM(-(sm.product_qty)) AS product_qty
FROM
stock_move as sm
LEFT JOIN
product_product ON product_product.id = sm.product_id
LEFT JOIN
stock_location source_location ON sm.location_id = source_location.id
LEFT JOIN
stock_location dest_location ON sm.location_dest_id = dest_location.id
WHERE
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sm.state IN ('confirmed','partially_available','assigned','waiting') and
source_location.usage = 'internal' and dest_location.usage != 'internal'
GROUP BY sm.date_expected,sm.product_id)
as MAIN
LEFT JOIN
(SELECT DISTINCT date
FROM
(
SELECT date_trunc('week', CURRENT_DATE) AS DATE
UNION ALL
SELECT date_trunc('week', to_date(to_char(sm.date_expected, 'YYYY/MM/DD'), 'YYYY/MM/DD')) AS date
FROM stock_move sm
LEFT JOIN
stock_location source_location ON sm.location_id = source_location.id
LEFT JOIN
stock_location dest_location ON sm.location_dest_id = dest_location.id
WHERE
sm.state IN ('confirmed','assigned','waiting') and sm.date_expected > CURRENT_DATE and
((dest_location.usage = 'internal' AND source_location.usage != 'internal')
or (source_location.usage = 'internal' AND dest_location.usage != 'internal'))) AS DATE_SEARCH)
SUB ON (SUB.date IS NOT NULL)
GROUP BY MAIN.product_id,SUB.date, MAIN.date
) AS FINAL
GROUP BY product_id,date)""")