This is the same as a payment, but the user is the payee instead of the
payer.
I used a different relation than payment because i do not know any other
way to encode the constraint that only invoices can have a collection,
while expenses have only payments.
Besides the name and the fact that they are related to invoices, a
collection is pretty much the same as a payment.
With Oriol we agreed that to add new payments to expenses we should
direct users to a separate payments section, much like the general
payments but centered around the payments of the given expense.
In fact, the only thing i had to do is extract the expense from the
URL, and then adjust the base URI to keep things always within the
correct section; the rest of the code is shared with the general
section.
This actually should be the “payments and receivables” section, however
this is quite a mouthful; a “receivable” is a payment made **to** you,
therefore “payments” is ok.
In fact, there is still no receivables in there, as they should be in
a separate relation, to constraint them to invoices instead of expenses.
It will be done in a separate commit.
Since this section will be, in a sense, sort of simplified accounting,
i needed to introduce the “payment account” concept. There is no way,
yet, for users to add them, because i have to revamp the “tax details”
section, but this commit started to grow too big already.
The same reasoning for the attachment payment slips as PDF to payment:
something i have to add, but not yet in this commit.
jordi fita mas