security - Saas model data isolation -


i curently have application writen in php using symfony framework. rather have seperate installs customer on hosted server, move saas model 1 install customers posible running of google code or cloud based service. not tied php though have benifits of framework.

so chalenge: if customers using same application have fin way isolating each customers data. customers eample have admin access , can manager own users , privlages. @ simplistic leve have organisation identifier in each table take , add database operations. application framewors use , orm of kind, , have not been able find 1 easly / seemlesly facinatate @ leve has minimum impact on application code.

has looked @ this, there aproaches problem?

as itay says, multi-tenant system common requirement. while doing research on problem , came across pretty presentation on different ways handle issue, , pros , cons of each: http://aac2009.confreaks.com/06-feb-2009-14-30-writing-multi-tenant-applications-in-rails-guy-naor.html

this particular presentation targeted rails audience, principles same language.


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