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Add an Append function which appends to a slice

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This commit is contained in:
Tobie Morgan Hitchcock 2017-11-16 19:09:27 +00:00
parent 4640839231
commit 428ad4312c
2 changed files with 68 additions and 0 deletions
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20
util/data/data.go
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@ -688,6 +688,26 @@ func (d *Doc) Del(path ...string) error {
// --------------------------------------------------------------------------------
// Append appends an item or an array of items to an array at the specified path.
func (d *Doc) Append(value interface{}, path ...string) (*Doc, error) {
a, ok := d.Get(path...).Data().([]interface{})
if !ok {
return &Doc{data: nil}, fmt.Errorf("Not an array")
}
if values, ok := value.([]interface{}); ok {
for _, value := range values {
a = append(a, value)
}
} else {
a = append(a, value)
}
return d.Set(a, path...)
}
// ArrayAdd appends an item or an array of items to an array at the specified path.
func (d *Doc) ArrayAdd(value interface{}, path ...string) (*Doc, error) {

48
util/data/data_test.go
View file

@ -774,6 +774,54 @@ func TestOperations(t *testing.T) {
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 2)
})
Convey("Can add to array", t, func() {
set, err := doc.ArrayAdd("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 3)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy", "None"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 3)
})
Convey("Can add to array", t, func() {
set, err := doc.ArrayAdd("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 3)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy", "None"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 3)
})
Convey("Can del from array", t, func() {
set, err := doc.ArrayDel("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 2)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 2)
})
Convey("Can append to array", t, func() {
set, err := doc.Append("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 3)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy", "None"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 3)
})
Convey("Can append to array", t, func() {
set, err := doc.Append("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 4)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy", "None", "None"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 4)
})
Convey("Can append to array", t, func() {
set, err := doc.Append("None", "the.item.tags")
So(err, ShouldBeNil)
So(set.Data(), ShouldHaveLength, 5)
So(doc.Get("the.item.tags").Data(), ShouldResemble, []interface{}{"Snowy", "Icy", "None", "None", "None"})
So(doc.Get("the.item.tags.length").Data(), ShouldResemble, 5)
})
Convey("Can del array", t, func() {
err := doc.Del("the.item.tags")
So(err, ShouldBeNil)