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Fatal error??

I'm getting the following error message "Fatal error: Call to undefined method CI_DB_mysql_driver::num_rows()" and it's pointing to this line of code "if ($query->num_rows() > 0)" inside a model. Any ideas as to why?

it depends what $query is and what db function call you are setting it with. Why not print_r($query); and see what it contains (you can do that in the model temporarily as long as you take it out again)

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