Question about WATree
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Hello all,
I'm trying to use WATree with a relational database on the back end - it doesn't seem to want to go beyond the second level. I'm using it with ROE, and creating it as such: setupTree ^ WATree new root: (categories where: #parentid equals: -1) asArray first; labelBlock: [:cat | cat name]; childrenBlock: [:cat | categories where: #parentid equals: cat id]; yourself The data looks like this(If you look at in in monspace, it's easier to read :): id | name | description | image | parentid ----+---------------------- +----------------------------------------------------------------------- ------------------------------------------------------------------------ ------+-----------------+---------- 0 | Top | Top Level Categories | educational.png | -1 2 | Independent Living | Tasks for independent and supported living, such as cooking, cleaning, money management, using household appliances, and practicing healthy living. | independent.png | 0 3 | Educational | Tasks for academic settings, such as using the library, recognizing bird songs, or learning the sounds of musical instruments. | educational.png | 0 4 | Vocational | Work related tasks, such as using a FAX machine, cleaning offices, filling out a time card, etc. | vocational.png | 0 5 | Recreation & Leisure | Task instructions for activities, such as learning to play games, learning about local parks and museums, etc. | recreation.png | 0 6 | Community Access | Assistance for community-based activities, such as taking the bus, using a pay phone, using an ATM, learning traffic signs, etc. | community.png | 0 7 | Health & Wellness | Medical and Hygiene related | health.png | 0 9 | Cooking | Preparing meals independently | cooking.png | 2 10 | Breakfast | Preparing Breakfast meals | cooking.png | 9 11 | How To | How to do various things | cooking.png | 3 12 | Other | Not categorized | independent.jpg | 0 (11 rows) The tree comes out like: -Top +Independent Living +Educational Vocational Recreation & Leisure Community Access Health & Wellness Other ... which is perfect. As you can see from the data, Independent Living and Educational both have children; clicking on the + does nothing. However, the Top entry can be collapsed and expanded at will. I have no idea why it won't expand the lower two. Anyone have any ideas? thanks! Brian _______________________________________________ Seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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> Hello all, > > I'm trying to use WATree with a relational database on the back end - > it doesn't seem to want to go beyond the second level. > > I'm using it with ROE, and creating it as such: > > setupTree > ^ WATree new > root: (categories where: #parentid equals: -1) asArray first; > labelBlock: [:cat | cat name]; > childrenBlock: [:cat | categories where: #parentid equals: cat > id]; > yourself ... childrenBlock: [:cat | self halt. categories where: #parentid equals: cat id]; Cédrick _______________________________________________ Seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Brian Brown-2
I solved this issue, and it was that the WATree>>initialize uses an
IdentitySet to compare the items. I changed it to Set and everything behaves the way I think it should. Regards, Brian On Nov 22, 2006, at 5:25 PM, Brian Brown wrote: > Hello all, > > I'm trying to use WATree with a relational database on the back end > - it doesn't seem to want to go beyond the second level. > > I'm using it with ROE, and creating it as such: > > setupTree > ^ WATree new > root: (categories where: #parentid equals: -1) asArray first; > labelBlock: [:cat | cat name]; > childrenBlock: [:cat | categories where: #parentid equals: cat id]; > yourself _______________________________________________ Seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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