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Data Model Questions /

Extend Member or Decorate


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Martin Pales

Community Member, 19 Posts

8 December 2010 at 10:24am

Another good explanation here:
http://silverstripe.org/customising-the-cms/show/11027#post278622

Cheers.

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DNA

Community Member, 24 Posts

8 December 2010 at 1:05pm

Hi,

I need to have multiple member types with distinct information associated with them. Have been reading about decorating the member. However as each decorator affects all the base table it seems a little inelegant.

So thought this approach might work and am looking for feedback.

1) Decorate Member with MyMember which has_one MemberExtend
2) Create MemberExtend which extends DataObject
3) Subclass MemberExtend which each type I need.

Then each member has 1 set of associated info at the MemberExtend Object. The MemberExtend object in infinitely subclassable (clearly not a word).

The only downsides I see are:
1) Backend isn't aware of extra data
2) MemberExtend could potentially have multiple Members (this relationship could be turned around, but the same thing occurs)

Thoughts? Maybe I'm over thinking this.

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DNA

Community Member, 24 Posts

8 December 2010 at 2:16pm

Actually upon reflection, if you turn the relationship around. MyMember has many MemberExtends. Then you can have a member with multiple usertypes.

Which is kinda sweet and fixes Sminnee's issue here: http://groups.google.com/group/silverstripe-dev/browse_thread/thread/4519e2b9b5e967db/79b0aa3075d67d18?lnk=gst

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DNA

Community Member, 24 Posts

8 December 2010 at 2:55pm

A better name for MemberExtend is probably Role.

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Ingo

Forum Moderator, 801 Posts

15 December 2010 at 9:50pm

There's even a brief digression on this topic in the docs :) http://doc.silverstripe.org/member

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micahsheets

Community Member, 165 Posts

6 January 2011 at 11:21am

The problem with decorating Member is that all members get the added stuff. In many cases the need for a special Member is that a site needs a way for people to log into the website and not the CMS. If I need to store information for members that are website only then I subclass Member so that administration users don't get a bunch of info that is not relevant to them. I also usually create a custom loginForm so that when the special member logs in they get sent to the page they should see. I use ModelAdmin to administrate my special members. In fact I have never found a reason to decorate the built in Member class as the current one does most everything needed for CMS administration.

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