Why are you looking at these complex solutions? Is there a problem with a simple pessimistic locking approach, like creating a lock file when someone goes to the edit page and removing it when they save or adding a "signed_out_by" column in the database table? There are issues with people leaving that screen open and walking away, but you can use javascript and timeouts to help with that.
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
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<h5> <h6> <hr /> <i>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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