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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...y.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You still have to go t...
Where does Oracle SQL Developer store connections?
...
Thanks! It would be interesting to know what these Oracle people are thinking when they come up with a path like that!
– Jeff Roe
May 6 '14 at 23:40
...
Django-Admin: CharField as TextArea
... = super(CabAdmin, self).formfield_for_dbfield(db_field, **kwargs)
if db_field.name == 'descr':
formfield.widget = forms.Textarea(attrs=formfield.widget.attrs)
return formfield
share
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...
How to set the Default Page in ASP.NET?
...
If using IIS 7 or IIS 7.5 you can use
<system.webServer>
<defaultDocument>
<files>
<clear />
<add value="CreateThing.aspx" />
</files>
</...
How to keep a .NET console app running?
..._quitFlag = keyInfo.Key == ConsoleKey.C
&& keyInfo.Modifiers == ConsoleModifiers.Control;
}
Not sure if that's better, but I don't like the idea of calling Thread.Sleep in a loop.. I think it's cleaner to block on user input.
...
How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...'t work, and it also broke the previously working filter for python-files. Now I get this error all the time "error: external filter sed". Do you know how I can fix this or simply delete all filters?
– PaulMag
Nov 24 '14 at 13:27
...
How to silence output in a Bash script?
...riptor 1 which is the the stdout.
2>&1
Redirect stdout to File
Now when perform this you are redirecting the stdout to the file sample.s
myprogram > sample.s
Redirect stderr and stdout to File
Combining the two commands will result in redirecting both stderr and stdout to sample.s...
JNI converting jstring to char *
...
if you check the second link, the prototype of the function GetStringUTFChars is: const jbyte* GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy); so you don't really have a choise
– Jaso...
Alphabet range in Python
... string
>>> string.ascii_lowercase
'abcdefghijklmnopqrstuvwxyz'
If you really need a list:
>>> list(string.ascii_lowercase)
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
And to do it with rang...
Can't import my own modules in Python
...Case.py, do
from ..myapp import SomeObject
However, this will work only if you are importing TestCase from the package. If you want to directly run python TestCase.py, you would have to mess with your path. This can be done within Python:
import sys
sys.path.append("..")
from myapp import SomeOb...