[API] Add pagination to ListBranches (#14524)
* make PaginateUserSlice generic -> PaginateSlice * Add pagination to ListBranches * add skip, limit to Repository.GetBranches() * Move routers/api/v1/utils/utils PaginateSlice -> modules/util/paginate.go * repo_module.GetBranches paginate * fix & rename & more logging * better description Co-authored-by: zeripath <art27@cantab.net> Co-authored-by: a1012112796 <1012112796@qq.com>tokarchuk/v1.17
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// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util |
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import "reflect" |
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// PaginateSlice cut a slice as per pagination options
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// if page = 0 it do not paginate
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func PaginateSlice(list interface{}, page, pageSize int) interface{} { |
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if page <= 0 || pageSize <= 0 { |
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return list |
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} |
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if reflect.TypeOf(list).Kind() != reflect.Slice { |
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return list |
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} |
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listValue := reflect.ValueOf(list) |
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page-- |
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if page*pageSize >= listValue.Len() { |
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return listValue.Slice(listValue.Len(), listValue.Len()).Interface() |
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} |
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listValue = listValue.Slice(page*pageSize, listValue.Len()) |
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if listValue.Len() > pageSize { |
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return listValue.Slice(0, pageSize).Interface() |
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} |
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return listValue.Interface() |
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} |
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// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util |
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import ( |
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"testing" |
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"github.com/stretchr/testify/assert" |
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) |
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func TestPaginateSlice(t *testing.T) { |
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stringSlice := []string{"a", "b", "c", "d", "e"} |
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result, ok := PaginateSlice(stringSlice, 1, 2).([]string) |
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assert.True(t, ok) |
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assert.EqualValues(t, []string{"a", "b"}, result) |
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result, ok = PaginateSlice(stringSlice, 100, 2).([]string) |
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assert.True(t, ok) |
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assert.EqualValues(t, []string{}, result) |
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result, ok = PaginateSlice(stringSlice, 3, 2).([]string) |
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assert.True(t, ok) |
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assert.EqualValues(t, []string{"e"}, result) |
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result, ok = PaginateSlice(stringSlice, 1, 0).([]string) |
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assert.True(t, ok) |
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assert.EqualValues(t, []string{"a", "b", "c", "d", "e"}, result) |
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result, ok = PaginateSlice(stringSlice, 1, -1).([]string) |
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assert.True(t, ok) |
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assert.EqualValues(t, []string{"a", "b", "c", "d", "e"}, result) |
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type Test struct { |
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Val int |
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} |
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var testVar = []*Test{{Val: 2}, {Val: 3}, {Val: 4}} |
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testVar, ok = PaginateSlice(testVar, 1, 50).([]*Test) |
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assert.True(t, ok) |
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assert.EqualValues(t, []*Test{{Val: 2}, {Val: 3}, {Val: 4}}, testVar) |
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testVar, ok = PaginateSlice(testVar, 2, 2).([]*Test) |
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assert.True(t, ok) |
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assert.EqualValues(t, []*Test{{Val: 4}}, testVar) |
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} |
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