示例#1
0
文件: paginate.go 项目: fd/simplex
func Paginate(in *static.C, size int) *static.C {
	if size <= 0 {
		size = 15
	}

	return in.Transform(reflect.TypeOf(&Page{}), func(elems []interface{}) ([]interface{}, error) {
		var (
			number = 1
			pages  = make([]interface{}, 0, len(elems)/size+1)
		)

		for l := len(elems); l > 0; l -= size {
			end := size
			if end > l {
				end = l
			}

			page := &Page{
				Number:    number,
				Elements:  elems[:end],
				elem_type: in.ElemType(),
			}
			pages = append(pages, page)

			number += 1
			elems = elems[end:]
		}

		return pages, nil
	})
}
示例#2
0
文件: news.go 项目: fd/simplex
func Generate(tx *static.Tx) {
	var (
		articles *static.C
	)

	articles = tx.Coll("articles", &Article{})
	articles = articles.Select(published).Sort(by_publish_date)

	generate_index_pages(articles)
	generate_article_pages(articles)
}
示例#3
0
文件: render.go 项目: fd/simplex
// f: func(m T, w io.Writer, r Router) error
func Render(in *static.C, f interface{}) {
	var (
		fv = reflect.ValueOf(f)
		ft = fv.Type()
		i0 reflect.Type
		i1 reflect.Type
		o0 reflect.Type
	)

	if ft.Kind() != reflect.Func || ft.NumIn() != 2 || ft.NumOut() != 1 {
		panic("Render(f): f must have signature: func(m T, w Writer) error")
	}

	i0 = ft.In(0)
	i1 = ft.In(1)
	o0 = ft.Out(0)

	if !o0.Implements(errorType) || i1 != writerType {
		panic("Render(f): f must have signature: func(m T, w Writer) error")
	}

	if i0.Kind() == reflect.Interface && !in.ElemType().Implements(i0) {
		panic("Render(f): f must have signature: func(m T, w Writer) error")
	} else if i0 != in.ElemType() {
		panic("Render(f): f must have signature: func(m T, w Writer) error")
	}

	err := cas.UpdateSchema(in.Tx().SqlTx())
	if err != nil {
		panic(err)
	}

	router := terminator_for_tx(in.Tx())

	docs := in.Collect(func(v interface{}) (*document, error) {
		var (
			d      *document
			dw     = new_document_writer(in.Tx().SqlTx())
			rw     = Writer(dw)
			args_o []reflect.Value
			args_i = []reflect.Value{
				reflect.ValueOf(v),
				reflect.ValueOf(rw),
			}
		)

		args_o = fv.Call(args_i)

		if !args_o[0].IsNil() {
			return nil, args_o[0].Interface().(error)
		}

		err := dw.Close()
		if err != nil {
			return nil, err
		}

		d = dw.document

		for _, rule := range dw.route_builder.rules {
			set := router.route_table.path(rule.path)
			err := set.add(&route_rule{
				Host:        rule.host,
				Language:    d.Header.Get("Language"),
				ContentType: d.Header.Get("Content-Type"),
				Status:      d.Status,
				Header:      d.Header,
				Address:     d.Digest,
			})
			if err != nil {
				return nil, err
			}
		}

		return d, nil
	})

	router.mtx.Lock()
	defer router.mtx.Unlock()
	router.collections = append(router.collections, docs)
}