[FIX] fix wrong model and misspelling. add user error

easy_my_coop_loan_account/wizard/end_of_year_operation.py

@@ -3,6 +3,8 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 from odoo import api, fields, models
 
+from odoo.exceptions import UserError
+
 
 class LoanEndOfYearOperation(models.TransientModel):
     _name = "loan.end.of.year.operation"
@@ -22,6 +24,7 @@ class LoanEndOfYearOperation(models.TransientModel):
     @api.multi
     def run(self):
         afy_obj = self.env["account.fiscal.year"]
+        interest_line_obj = self.env["loan.interest.line"]
 
         loan_issues = self.env["loan.issue"].browse(
             self._context.get("active_ids")
@@ -30,15 +33,19 @@ class LoanEndOfYearOperation(models.TransientModel):
         last_fy_day = self.ongoing_fy_id.date_to
         next_fy = afy_obj.get_next_fiscal_year(last_fy_day)
 
-        if self.operation_type == "debt_eoy":
+        if self.operation_type == "eoy_debt":
             if next_fy:
-                interest_lines = self.search([
+                interest_lines = interest_line_obj.search([
                     ('due_date', '>=', next_fy.date_from),
                     ('due_date', '<=', next_fy.date_to),
                     ('due_loan_amount', '>', 0),
                     ("loan_issue_id", "in", loan_issues.ids)
                     ])
 
+                if interest_lines:
                     interest_lines.generate_loan_due_fy(last_fy_day)
+                else:
+                    raise UserError("There is no account move lines to"
+                                    " generate for the selected loan issue")
         elif self.operation_type == "eoy_interest":
             print()