forked from ungerik/go-start
/
modeliteratorview.go
45 lines (37 loc) · 1.06 KB
/
modeliteratorview.go
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package view
import (
"github.com/ungerik/go-start/model"
// "github.com/ungerik/go-start/utils"
)
///////////////////////////////////////////////////////////////////////////////
// ModelIteratorView
type GetModelIteratorFunc func(ctx *Context) model.Iterator
type GetModelIteratorViewFunc func(ctx *Context, model interface{}) (view View, err error)
func ModelIterator(iter model.Iterator) GetModelIteratorFunc {
return func(ctx *Context) model.Iterator {
return iter
}
}
type ModelIteratorView struct {
ViewBase
GetModelIterator GetModelIteratorFunc
GetModelIteratorView GetModelIteratorViewFunc // nil Views will be ignored
}
func (self *ModelIteratorView) Render(ctx *Context) (err error) {
var children Views
iter := self.GetModelIterator(ctx)
for model := iter.Next(); model != nil; model = iter.Next() {
view, err := self.GetModelIteratorView(ctx, model)
if err != nil {
return err
}
if view != nil {
children = append(children, view)
view.Init(view)
}
}
if iter.Err() != nil {
return iter.Err()
}
return children.Render(ctx)
}