How to invoke model methods in controller & vice versa

Rails
1

hello

how to invoke model methods in controller & vice versa
please explain with examples

advance thanx

2

You shouldn’t be invoking any controllers methods from your models,
but to invoke a method from a controller on a model you do it the
same way you do in every other ruby class.

obj = ModelName.new

go from there.

Thank You,
Ben J.
E: [email protected]

3

hai
first of all thx to u for explaining
i did the same way like that ur qouted
even am calling the method in model
by doing
s=Shortform.price # shortform is the model class & price is the method
in it
but the error was arise error: undefine method price in shortform
am checked the spelling & am define the particular method also
but the error was arise
plz help me Mr.

Thx

Ben J. wrote:

You shouldn’t be invoking any controllers methods from your models,
but to invoke a method from a controller on a model you do it the
same way you do in every other ruby class.

obj = ModelName.new

go from there.

Thank You,
Ben J.
E: [email protected]

4

You’re probably trying to call an instance method. So first create a new
Shortform object.

s = Shortform.new
price=s.price

Joerg

Narayana Karthik wrote:

hai
first of all thx to u for explaining
i did the same way like that ur qouted
even am calling the method in model
by doing
s=Shortform.price # shortform is the model class & price is the method
in it
but the error was arise error: undefine method price in shortform
am checked the spelling & am define the particular method also
but the error was arise
plz help me Mr.

Thx

Ben J. wrote:

You shouldn’t be invoking any controllers methods from your models,
but to invoke a method from a controller on a model you do it the
same way you do in every other ruby class.

obj = ModelName.new

go from there.

Thank You,
Ben J.
E: [email protected]

5

Thank u Joerg D.
thx very much

You’re probably trying to call an instance method. So first create a
new
Shortform object.

s = Shortform.new
price=s.price

Joerg

Narayana Karthik wrote:

hai
first of all thx to u for explaining
i did the same way like that ur qouted
even am calling the method in model
by doing
s=Shortform.price # shortform is the model class & price is the method
in it
but the error was arise error: undefine method price in shortform
am checked the spelling & am define the particular method also
but the error was arise
plz help me Mr.

Thx

Ben J. wrote:

You shouldn’t be invoking any controllers methods from your models,
but to invoke a method from a controller on a model you do it the
same way you do in every other ruby class.

obj = ModelName.new

go from there.

Thank You,
Ben J.
E: [email protected]