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Cap unfunded dues #3876

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Cap unfunded dues #3876

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78a3347
Failing test for keeping dues under minimum charge
rohitpaulk Dec 12, 2015
37c8e4f
Prevent dues from exceeding minimum_charge in payday
rohitpaulk Dec 12, 2015
50318f9
Add SQL script to bring all existing unfunded dues to below minimum c…
rohitpaulk Dec 12, 2015
05c0355
Add script to recalculate stale cached values
rohitpaulk Dec 16, 2015
55ce4b2
Correct the payin minimum
chadwhitacre Jan 5, 2016
b319262
Store minimum_charge in the database
chadwhitacre Jan 5, 2016
354ede6
Refresh settings after each test
rohitpaulk Jan 27, 2016
8ea83a8
Tinker with how we manage the settings table
chadwhitacre Jan 27, 2016
295cef5
Check has_credit_card instead of minimum_charge
chadwhitacre Jan 27, 2016
ac20404
Remove settings table
chadwhitacre Jan 27, 2016
ab9df0e
Modify db repair to harmonize w/ new condition
chadwhitacre Jan 27, 2016
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16 changes: 16 additions & 0 deletions sql/branch.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
from gratipay import wireup

db = wireup.db(wireup.env())

participants = db.all("""
SELECT p.*::participants
FROM participants p
JOIN payment_instructions pi ON pi.participant = p.username -- Only include those with tips
""")
total = len(participants)
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=> select count(*) from participants p JOIN payment_instructions pi ON pi.participant = p.username;
┌───────┐
│ count │
├───────┤
│  2921 │
└───────┘
(1 row)

I would expect this script to run for a few minutes, anyway.

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Yes, and I think that's fine - the operations are idempotent so crash/rerun shouldn't be a problem.

counter = 0

for p in participants:
print("Participant %s/%s" % (counter, total))
p.update_giving_and_teams()
counter += 1
3 changes: 3 additions & 0 deletions sql/branch.sql
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@@ -0,0 +1,3 @@
BEGIN;
UPDATE payment_instructions SET due = 0 WHERE due > 9.41;
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We could do something like this instead:

BEGIN;
    CREATE TEMP TABLE _participants AS
        SELECT id
             , username
             , ( SELECT count(*)
                   FROM current_exchange_routes r
                  WHERE r.participant = p.id
                    AND network = 'braintree-cc'
                    AND error = ''
               ) > 0 AS has_credit_card
          FROM participants p;

    UPDATE payment_instructions SET due = 0 WHERE due >= 9.41 AND participant IN (
        SELECT username FROM _participants WHERE NOT has_credit_card
    );

    DROP TABLE _participants;
END;

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I'm outta time to work on this today, though. I will try to pick up again tomorrow, @rohitpaulk.

END;
6 changes: 4 additions & 2 deletions sql/payday.sql
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Expand Up @@ -186,13 +186,14 @@ CREATE OR REPLACE FUNCTION process_payment_instruction() RETURNS trigger AS $$
FROM payday_participants p
WHERE username = NEW.participant
);

IF (NEW.amount + NEW.due <= participant.new_balance OR participant.card_hold_ok) THEN
EXECUTE pay(NEW.participant, NEW.team, NEW.amount + NEW.due, 'to-team');
RETURN NEW;
ELSE
ELSIF participant.has_credit_card THEN
EXECUTE park(NEW.participant, NEW.team, NEW.amount + NEW.due);
RETURN NULL;
END IF;

RETURN NULL;
END;
$$ LANGUAGE plpgsql;
Expand All @@ -202,6 +203,7 @@ CREATE TRIGGER process_payment_instruction BEFORE UPDATE OF is_funded ON payday_
WHEN (NEW.is_funded IS true AND OLD.is_funded IS NOT true)
EXECUTE PROCEDURE process_payment_instruction();


-- Create a trigger to process takes

CREATE OR REPLACE FUNCTION process_take() RETURNS trigger AS $$
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22 changes: 22 additions & 0 deletions tests/py/test_billing_payday.py
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Expand Up @@ -101,6 +101,28 @@ def test_payday_preserves_due_until_charged(self, fch):
assert obama.balance == D('0.00')
assert obama.get_due('TheEnterprise') == D('0.00')

@mock.patch.object(Payday, 'fetch_card_holds')
def test_payday_keeps_dues_under_minimum_charge(self, fch):
Enterprise = self.make_team(is_approved=True)
self.obama.set_payment_instruction(Enterprise, '4.00')
assert self.obama.get_due('TheEnterprise') == D('0.00')

fch.return_value = {}
Payday.start().run() # payday 0

assert self.obama.get_due('TheEnterprise') == D('4.00')

fch.return_value = {}
self.obama_route.update_error("failed") # card fails
Payday.start().run() # payday 1

assert self.obama.get_due('TheEnterprise') == D('4.00')

fch.return_value = {}
Payday.start().run() # payday 2

assert self.obama.get_due('TheEnterprise') == D('4.00')

@mock.patch.object(Payday, 'fetch_card_holds')
def test_payday_does_not_move_money_below_min_charge(self, fch):
Enterprise = self.make_team(is_approved=True)
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