store mint url in invoices table

cashu/core/base.py

@@ -274,6 +274,7 @@ class Invoice(BaseModel):
     paid: Union[None, bool] = False
     time_created: Union[None, str, int, float] = ""
     time_paid: Union[None, str, int, float] = ""
+    mint: Union[None, str] = None
 
 
 class MeltQuoteState(Enum):

cashu/wallet/crud.py

@@ -246,8 +246,8 @@ async def store_lightning_invoice(
     await (conn or db).execute(
         """
         INSERT INTO invoices
-          (amount, bolt11, id, payment_hash, preimage, paid, time_created, time_paid, out)
-        VALUES (:amount, :bolt11, :id, :payment_hash, :preimage, :paid, :time_created, :time_paid, :out)
+          (amount, bolt11, id, payment_hash, preimage, paid, time_created, time_paid, out, mint)
+        VALUES (:amount, :bolt11, :id, :payment_hash, :preimage, :paid, :time_created, :time_paid, :out, :mint)
         """,
         {
             "amount": invoice.amount,
@@ -259,6 +259,7 @@ async def store_lightning_invoice(
             "time_created": invoice.time_created,
             "time_paid": invoice.time_paid,
             "out": invoice.out,
+            "mint": invoice.mint,
         },
     )
 
@@ -301,6 +302,7 @@ async def get_lightning_invoices(
     db: Database,
     paid: Optional[bool] = None,
     pending: Optional[bool] = None,
+    mint: Optional[str] = None,
     conn: Optional[Connection] = None,
 ) -> List[Invoice]:
     clauses = []
@@ -316,6 +318,10 @@ async def get_lightning_invoices(
         clauses.append("out = :out")
         values["out"] = False
 
+    if mint:
+        clauses.append("mint = :mint")
+        values["mint"] = mint
+
     where = ""
     if clauses:
         where = f"WHERE {' AND '.join(clauses)}"

cashu/wallet/migrations.py

@@ -245,6 +245,12 @@ async def m012_add_fee_to_keysets(db: Database):
         await conn.execute("UPDATE keysets SET input_fee_ppk = 0")
 
 
+async def m013_add_mint_column_invoices(db: Database):
+    async with db.connect() as conn:
+        # add column for storing the mint of an invoice
+        await conn.execute("ALTER TABLE invoices ADD COLUMN mint TEXT")
+
+
 # # async def m020_add_state_to_mint_and_melt_quotes(db: Database):
 # #     async with db.connect() as conn:
 # #         await conn.execute(

cashu/wallet/wallet.py

@@ -411,6 +411,7 @@ async def request_mint_with_callback(
             id=mint_qoute.quote,
             out=False,
             time_created=int(time.time()),
+            mint=self.url,
         )
         await store_lightning_invoice(db=self.db, invoice=invoice)
         return invoice, subscriptions
@@ -435,6 +436,7 @@ async def request_mint(self, amount: int, memo: Optional[str] = None) -> Invoice
             id=mint_quote_response.quote,
             out=False,
             time_created=int(time.time()),
+            mint=self.url,
         )
         await store_lightning_invoice(db=self.db, invoice=invoice)
         return invoice
@@ -502,6 +504,7 @@ async def mint_quote(self, amount: int, memo: Optional[str] = None) -> Invoice:
             id=mint_quote_response.quote,
             out=False,
             time_created=int(time.time()),
+            mint=self.url,
         )
         await store_lightning_invoice(db=self.db, invoice=invoice)
         return invoice
@@ -775,6 +778,7 @@ async def melt(
             time_paid=int(time.time()),
             id=quote_id,  # store the same ID in the invoice
             out=True,  # outgoing invoice
+            mint=self.url,
         )
         # store invoice in db as not paid yet
         await store_lightning_invoice(db=self.db, invoice=invoice_obj)