Add to your City
model:
class City
def to_s
name
end
end
Replacing name
with relevant attribute.
Pregunta
In the select dropdown element it shows instead of the string for City:
<option value="1">#<City:0x007f850028b220></option>
Solución
Add to your City
model:
class City
def to_s
name
end
end
Replacing name
with relevant attribute.