Updating system configuration

However, sections in the Core modules use this tag, so it’s best to follow the convention, even when you’re not sure what it does.Again, determines where this sections shows up vertically compared to other sections in the Tab.If you need to view the system config file, it exists as it’s own entity.You can view the entire system config by executing the following PHP code from any controller action ), and as a module developer you can leverage this functionality to create your own.If you got the exception mentioned above, it’s because your Helloworld module didn’t have this default Helper class and the System was trying to use it. First, we need to add a section the to module’s main With all this done, clear your Magento cache and reload the System admin.Your error message should be gone, but your new tab is still missing.These are boolean config options, with a valid value of 1 or 0.

If you click your new section link you’ll be disappointed by the results.Helper classes are one of the abstracted grouped class names, meaning system users can override default classes and module developers need to add a section to their to specify the base class name for Helpers.A lot of the Magento System code assumes a module has a default Helper class.Note: If you’re curious about the kind of things a helper can do for you, checkout the class for a list of useful methods that all helpers will have.The Helper interlude out of the way, our next step is figuring out why our configured Tab isn’t showing up. For example, the Advanced tab has (by default) an Admin, System, Advanced, and Developer section.