ruby regexp match all
# use scan
"hello".scan(/l/)ruby regexp match all
# use scan
"hello".scan(/l/)regex in rails
Model.where("column ~* ?", ''^A\d{4}$'')
^ - string start anchor
A - literal "A"
\d+ - one or more digits (0-9)
\d{4} - exactly four digits
$ - string end anchor
Basically, the regex reads "the string should start with an A, followed by
four digits and then the string should end". The final query line is:
@max_draw = Drawing.where("drawing_number ~* ?", '^A\d{4}$')Copyright © 2021 Codeinu
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