.htaccess how to redirect the contents of a directory to a subdirectory

Question

I am practicing database constraints and I have a question. How many constraints can we apply on one column in a table? Wrote now I am able to use two constraints on one column but not able to use the third constraint. So could you tell me how many constraints can we apply on one column in a table?

Solution 1

RewriteRule ^/folder(.*)$ /folder/subfolder/$1 [R=301,NC,L]

As just mentioned in this other answer... in per-directory .htaccess files the RewriteRule pattern matches the URL-path less the directory-prefix, so the URL-path that is matched does not start with a slash. So, the pattern should be more like: ^folder(.*)$

Unless you have a requirement to use the root .htaccess file, I would create a .htaccess file in the directory you are redirecting from instead. So, in the /folder/.htaccess file (not the document root), try the following:

RewriteEngine On
RewriteBase /folder

RewriteCond %{REQUEST_URI} !^/folder/subfolder
RewriteCond %{REQUEST_URI} !^/folder/exclude-file1\.html$
RewriteCond %{REQUEST_URI} !^/folder/exclude-file2\.html$
RewriteCond %{REQUEST_URI} !^/folder/exclude-dir
RewriteRule (.*) subfolder/$1 [R=302,L]

The NC flag is not required here.

The first RewriteCond directive is to prevent a redirect loop, since we are redirecting to a subfolder of the folder we are redirecting from!

I've also used a 302 (temporary) redirect. When you are sure it's working OK, change to a 301 (permanent) - if that is the intention. 301s are cached by the browser so can make testing problematic.

Solution 2

Another way is to use the RedirectMatch directive.

RedirectMatch temp "^/folder\
(?!\
/subfolder|
/exclude-file1\.html$|\
/exclude-file2\.html$|\
/exclude-dir)(.*)$" \
"/folder/subfolder/$1"

As single line

RedirectMatch temp "^/folder(?!/subfolder|/exclude-file1\.html$|/exclude-file2\.html$|/exclude-dir)(.*)$" "/folder/subfolder"

Change from temp (302) to permanent (301) when ready.

The regex reads like this...
Match request line beginning (^) with /folder
not followed by (?!) exclusion 1 or (|) exclusion n followed by anything else (.*) to end of request line ($).

Redirect matched request to target/first captured group ($1).