I hope for your help.
I have faced with problem. I used postgresql.
I create model instance and try to save object to DB:
$city = $this->add("Model_City")->debug();
$city['name'] = "London";
$city['country_id'] = 18;
It causes an error: "Call to a member function execute()"
When I check sql query and execute it manually, I get this error from postgresql:
ERROR: column "London" does not exist
LINE 1: insert into "city" ("name","country_id") values ("London",18...
Please help, what am I doing wrong?