Re: [Rails] hii friends,,,,,i m new to rails......i think there is a problem in destroy command .

[Colin Law]

On 16 August 2012 06:03, Fahim Patel <paf...@gmail.com> wrote:
> let me explain this problem ........
> -------------------rails destroy----------------------------this command
> destroy model,scaffold etc .....
> problem is that if a model or other structure is exist than ,this command
> will destroy all the related file to it.......good ..till now no
> problem...........
> but problem is that if a model etc is not exist than till this command
> remove the file ...it should not be done.....there is no such a file name
> exist..........
> some error or exception should be execute at this time ....
>
> i think this a problem???
> if not than expalin me..........

I am not sure what you are saying. Can you post an example and the
result and explain what you think should happen. Run the command and
copy and paste the result here. Showing an example is always better
than trying to explain it in words in a languaget that is not your
first language.

Colin

[AmateurCoder]

Are you saying to run rails destroy model foo and foo doesn't exist then you should get an error or exception message?  If you try this on the command line rails destroy model foo, it will run the opposite of the generate command; however, nothing ever existed, so can't see the harm.

On Thursday, August 16, 2012 12:03:47 AM UTC-5, Fahim Patel wrote:

let me explain this problem ........

-------------------rails destroy----------------------------this command destroy model,scaffold etc .....

problem is that if a model or other structure is exist than ,this command will destroy all the related file to it.......good ..till now no problem...........

but problem is that if a model etc is not exist than till this command remove the file ...it should not be done.....there is no such a file name exist..........

some error or exception should be execute at this time ....

i think this a problem???

if not than expalin me..........

Regards 

Fahim Babar Patel

[Bill Walton]

The behaviour is consistent with other commands.   If, for example, you run 'rake db:migrate' and there are no migrations that need to be run, the task simply returns you to the command line without comment.  One might make the argument that it _should_ say something like 'there are no migrations that need to be run.'  Or one might start submitting patches and see what the community thinks ;-)

Best regards,
Bill

 

Regards 

Fahim Babar Patel

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[Fahim Patel]

thanks for reply.....let me explain ....

there is no such a  testing model present

 rails destroy model testing

      invoke  active_record

      remove    migration.rb

      remove    app/models/testing.rb

      invoke    rspec

      remove      spec/models/testing_spec.rb

      invoke      factory_girl

      remove        spec/factories/testings.rb

but it is still removing files.....

one more example

rails destroy controller testing

      remove  app/controllers/testing_controller.rb

      invoke  erb

      remove    app/views/testing

      invoke  rspec

      remove    spec/controllers/testing_controller_spec.rb

      invoke  helper

      remove    app/helpers/testing_helper.rb

      invoke    rspec

      remove      spec/helpers/testing_helper_spec.rb

      invoke  assets

      invoke    coffee

      remove      app/assets/javascripts/testing.js.coffee

      invoke    scss

      remove      app/assets/stylesheets/testing.css.scss

there is no testing controller prsent.....

this thing is happen with all directory structure....
scaffold also  do the same thing......

there should be any exception or error ??????????

On Thursday, August 16, 2012 10:33:47 AM UTC+5:30, Fahim Patel wrote:

let me explain this problem ........

-------------------rails destroy----------------------------this command destroy model,scaffold etc .....

problem is that if a model or other structure is exist than ,this command will destroy all the related file to it.......good ..till now no problem...........

but problem is that if a model etc is not exist than till this command remove the file ...it should not be done.....there is no such a file name exist..........

some error or exception should be execute at this time ....

i think this a problem???

if not than expalin me..........

Regards 

Fahim Babar Patel

[Fahim Patel]

i am waiting for ur reply Rails Community...can any one tell that this issue is problem or not?????i think it is a problem.......some exception should be thrown or any message........

this command removing the files which are not exist.........i know this issue is not a error ....but it make a confussion.......

waiting for ur reply

Fahim Babar Patel

[Fahim Patel]

can one explain this issue?

[Colin Law]

I think the most likely cause is that the keys on your keyboard are
sticking down causing all the repeated characters.

If you are referring to the fact that rails destroy attempts to delete
all the files that generate creates then that is just the way it is.
I don't think anyone really cares much how rails destroy works as it
is virtually never used. I don't think I have ever used it. If you
want to remove stuff you can just delete the files you don't want.

Colin

[Jordon Bedwell]

It's not deleting anything.  Even though it claims it is it's just cruft in the terminal.  It's impossible to delete something that doesn't exist, well I should not say impossible as anything is possible but none-the-less the cruft is still outputted even if it does not delete anything.  Perhaps you should file a rails bug and ask them to adjust the message to imply "trying" instead of implying "doing". 

[Fahim Patel]

i have given a code snippet .
u can watch it .
i think this the big issue

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[Colin Law]

On 1 September 2012 12:12, Fahim Patel <paf...@gmail.com> wrote:
> i have given a code snippet .
> u can watch it .
> i think this the big issue

Why do you think it is a big issue?

Colin

[Matt Jones]

On Friday, 17 August 2012 01:19:52 UTC-4, Fahim Patel wrote:

one more example

rails destroy controller testing

      remove  app/controllers/testing_controller.rb

      invoke  erb

      remove    app/views/testing

      invoke  rspec

      remove    spec/controllers/testing_controller_spec.rb

      invoke  helper

      remove    app/helpers/testing_helper.rb

      invoke    rspec

      remove      spec/helpers/testing_helper_spec.rb

      invoke  assets

      invoke    coffee

      remove      app/assets/javascripts/testing.js.coffee

      invoke    scss

      remove      app/assets/stylesheets/testing.css.scss

there is no testing controller prsent.....

this thing is happen with all directory structure....
scaffold also  do the same thing......

there should be any exception or error ??????????

No - the generator output is (slightly) confusing, but raising an exception in these cases would mean that you wouldn't be able to use 'destroy' to clean up after a generator if you'd manually removed any of the files it had created.

--Matt Jones