eliminate data type arguments from transaction and persistence manager intefaces

utilize model topology information instead

1 files changed, 10 insertions, 12 deletions

diff --git a/acf/model/init.lua b/acf/model/init.lua
index 7a51652..1870849 100644
--- a/acf/model/init.lua
+++ b/acf/model/init.lua
@@ -52,32 +52,30 @@ function Reference:init(params)
    if not self.scope then self.scope = '/' end
 end
 
-function Reference:abs_scope(context)
-   return pth.to_absolute(self.scope, node.path(context.parent))
+function Reference:topology(context)
+   local res = super(self, Reference):topology(context)
+   res[1].scope = self.scope
+   return res
 end
 
-function Reference:scope_addr(context)
-   local txn = context.txn
-   return node.addr(
-      relabel('system', txn.search, txn, self:abs_scope(context))
-   )
+function Reference:abs_scope(context)
+   return pth.to_absolute(self.scope, node.path(context.parent))
 end
 
 function Reference:meta(context)
    local res = super(self, Reference):meta(context)
    res.scope = self:abs_scope(context)
 
-   local objs = context.txn:get(self:scope_addr(context), 'table') or {}
+   local txn = context.txn
+   local objs = txn:get(
+      node.addr(relabel('system', txn.search, txn, res.scope))
+   ) or {}
    res.choice = map(function(p) return pth.join(res.scope, p) end, objs)
    res['ui-choice'] = objs
 
    return res
 end
 
-function Reference:btype(context)
-   return 'reference'..self:scope_addr(context)
-end
-
 function Reference:follow(context, value)
    return context.txn:search(pth.rawjoin(self:abs_scope(context), value))
 end