beginning a variable name with a number

[eggie5]

I have a symbol that I need to name with a number as the first
character, but that's invalid ruby syntax. e.g.:

t.column :_3g2, :integer

How can I somehow escape the '3' so I don't have the use the '_' in
the variable name?

 

[Stefan Rusterholz]

I have a symbol that I need to name with a number as the first
character, but that's invalid ruby syntax. e.g.:

t.column :_3g2, :integer

How can I somehow escape the '3' so I don't have the use the '_' in
the variable name?

As far as I know there is no way to begin a variable name with a number
(I assume simply because it would be PITA with all the exceptions to it,
as what would be Integer literals, such as 0xff).
A symbol however can, using the :"" syntax: :"1-2-3 mine".class # =>
Symbol

Regards
Stefan

 

[Tim Pease]

I have a symbol that I need to name with a number as the first
character, but that's invalid ruby syntax. e.g.:

t.column :_3g2, :integer

You can quote the symbol ...

t.column :"3g2", :integer

Blessings,
TwP

 

[Phlip]

You can quote the symbol ...

t.column :"3g2", :integer

In general, isn't the need to store a number in a database column name an
example of a "missing abstraction"? Shouldn't a database (or whatever
t.column fronts) store its numbers as data?