uniq res bindings

src/models/node_resource.go

 package models
 
-import "fmt"
+import (
+	"fmt"
+
+	"github.com/didi/nightingale/src/toolkits/slice"
+)
 
 type NodeResource struct {
 	NodeId int64
@@ -64,7 +68,11 @@ func NodeIdsGetByResIds(rids []int64) ([]int64, error) {
 
 	var ids []int64
 	err := DB["rdb"].Table(new(NodeResource)).In("res_id", rids).Select("node_id").Find(&ids)
+	if err != nil {
 		return ids, err
+	}
+
+	return slice.Int64Set(ids), err
 }
 
 // ResIdsGetByNodeIds 根据叶子节点获取资源ID列表
@@ -75,7 +83,11 @@ func ResIdsGetByNodeIds(nids []int64) ([]int64, error) {
 
 	var ids []int64
 	err := DB["rdb"].Table(new(NodeResource)).In("node_id", nids).Select("res_id").Find(&ids)
+	if err != nil {
 		return ids, err
+	}
+
+	return slice.Int64Set(ids), err
 }
 
 // ResCountGetByNodeIdsAndWhere 根据叶子节点和Where条件获取资源数量表

src/toolkits/slice/slice.go

+package slice
+
+import "strings"
+
+func Int64Set(s []int64) (r []int64) {
+	c := len(s)
+	if c == 0 {
+		return r
+	}
+
+	m := make(map[int64]struct{}, c)
+	for i := 0; i < c; i++ {
+		m[s[i]] = struct{}{}
+	}
+
+	for k := range m {
+		r = append(r, k)
+	}
+
+	return r
+}
+
+func IntSet(s []int) (r []int) {
+	c := len(s)
+	if c == 0 {
+		return r
+	}
+
+	m := make(map[int]struct{}, c)
+	for i := 0; i < c; i++ {
+		m[s[i]] = struct{}{}
+	}
+
+	for k := range m {
+		r = append(r, k)
+	}
+
+	return r
+}
+
+func StringSet(s []string) (r []string) {
+	c := len(s)
+	if c == 0 {
+		return r
+	}
+
+	m := make(map[string]struct{}, c)
+	for i := 0; i < c; i++ {
+		m[s[i]] = struct{}{}
+	}
+
+	for k := range m {
+		r = append(r, k)
+	}
+
+	return r
+}
+
+func StringSetWithoutBlank(s []string) (r []string) {
+	c := len(s)
+	m := make(map[string]struct{}, c)
+	for i := 0; i < c; i++ {
+		if strings.TrimSpace(s[i]) == "" {
+			continue
+		}
+		m[s[i]] = struct{}{}
+	}
+
+	for k := range m {
+		r = append(r, k)
+	}
+
+	return r
+}
+
+func StringIn(val string, slice []string) bool {
+	for i := 0; i < len(slice); i++ {
+		if slice[i] == val {
+			return true
+		}
+	}
+
+	return false
+}
+
+func Int64In(val int64, slice []int64) bool {
+	for i := 0; i < len(slice); i++ {
+		if slice[i] == val {
+			return true
+		}
+	}
+
+	return false
+}