(gncInvoiceGetInvoiceFromTxn): initialize book to NULL so warnings
won't kill -Werror compiles.
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@6093 57a11ea4-9604-0410-9ed3-97b8803252fd
structure registration (GncBusinessObject) into "gncCore" in the
engine.
* Change all the Business Objects to take a GNCBook instead of
GncBusiness; use the GNCEntityTable in the Book for GUID storage.
* Use xaccGUIDNew() instead of guid_new().
* Move the object storage tables into the GNCBook via get/set_data.
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@6041 57a11ea4-9604-0410-9ed3-97b8803252fd
to change how the Tax and Discount fields are handled (values
or percentages)
Add code to link a GncInvoice to a Transaction, and to lookup
the GncInvoice from a linked Transaction.
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@5989 57a11ea4-9604-0410-9ed3-97b8803252fd
