Sorry mal wieder an meine deutschen Leser, dieser Artikel ist in Englisch, da er für mehrere Leute interessant sein wird:
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A collegue of mine just created the Symfony/Sonata Table Tool on GitHub.
This tool is a Access or Filemaker replacement written in PHP using Symfony 2.8 (LTS) and Sonata Admin.
With this tool you can create Tables, Fields and Relations (Foreign-Keys) in a web-Tool. All neccessary files and config-parameters for Sonata Admin are generated. So for table-editing you can use sonata admin with all features (access-lists,…).