CODEWITHSUNDEEP
ruby-on-railsstringobject
am_am
am_am

Reputation: 31

display variable object name ROR

I have 2 previously defined strings :

table_string that holds the table name and field_string that holds the field name in this table , these 2 strings are variables and change depending on the previous page where they are coming

for example in a specified page i will press on a link that will redirect me to this page with table_string=user and field_string=fullname I should here access the attribute @user.fullname I tried to concatenate table_string + "." + field_stringin another string let's say x and then display <%= @x %>as if im typing@user.fullname` but this does not work

How can I display this variable field knowing that the table name will also changes ???

Upvotes: 0

Views: 66

Answers (1)

chumakoff
chumakoff

Reputation: 7044

Try the 'instance_variable_get' method.

table_name = 'user'
column_name = 'name'
instance_variable_get("@#{table_name}").send(column_name)

or just

instance_variable_get("@#{table_name}")[column_name]

Upvotes: 1

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