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https://github.com/go-gitea/gitea.git
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cb50375e2b
Add nakedret, unconvert, wastedassign, stylecheck and nolintlint linters to improve code readability - nakedret - https://github.com/alexkohler/nakedret - nakedret is a Go static analysis tool to find naked returns in functions greater than a specified function length. - unconvert - https://github.com/mdempsky/unconvert - Remove unnecessary type conversions - wastedassign - https://github.com/sanposhiho/wastedassign - wastedassign finds wasted assignment statements. - notlintlint - Reports ill-formed or insufficient nolint directives - stylecheck - https://staticcheck.io/docs/checks/#ST - keep style consistent - excluded: [ST1003 - Poorly chosen identifier](https://staticcheck.io/docs/checks/#ST1003) and [ST1005 - Incorrectly formatted error string](https://staticcheck.io/docs/checks/#ST1005)
106 lines
2.6 KiB
Go
106 lines
2.6 KiB
Go
// Copyright 2020 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 db
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import (
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"code.gitea.io/gitea/modules/setting"
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"xorm.io/xorm"
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)
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const (
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// DefaultMaxInSize represents default variables number on IN () in SQL
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DefaultMaxInSize = 50
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)
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// Paginator is the base for different ListOptions types
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type Paginator interface {
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GetSkipTake() (skip, take int)
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GetStartEnd() (start, end int)
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}
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// GetPaginatedSession creates a paginated database session
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func GetPaginatedSession(p Paginator) *xorm.Session {
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skip, take := p.GetSkipTake()
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return x.Limit(take, skip)
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}
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// SetSessionPagination sets pagination for a database session
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func SetSessionPagination(sess Engine, p Paginator) *xorm.Session {
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skip, take := p.GetSkipTake()
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return sess.Limit(take, skip)
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}
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// SetEnginePagination sets pagination for a database engine
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func SetEnginePagination(e Engine, p Paginator) Engine {
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skip, take := p.GetSkipTake()
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return e.Limit(take, skip)
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}
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// ListOptions options to paginate results
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type ListOptions struct {
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PageSize int
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Page int // start from 1
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}
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// GetSkipTake returns the skip and take values
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func (opts *ListOptions) GetSkipTake() (skip, take int) {
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opts.SetDefaultValues()
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return (opts.Page - 1) * opts.PageSize, opts.PageSize
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}
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// GetStartEnd returns the start and end of the ListOptions
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func (opts *ListOptions) GetStartEnd() (start, end int) {
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start, take := opts.GetSkipTake()
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end = start + take
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return start, end
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}
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// SetDefaultValues sets default values
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func (opts *ListOptions) SetDefaultValues() {
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if opts.PageSize <= 0 {
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opts.PageSize = setting.API.DefaultPagingNum
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}
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if opts.PageSize > setting.API.MaxResponseItems {
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opts.PageSize = setting.API.MaxResponseItems
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}
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if opts.Page <= 0 {
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opts.Page = 1
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}
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}
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// AbsoluteListOptions absolute options to paginate results
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type AbsoluteListOptions struct {
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skip int
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take int
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}
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// NewAbsoluteListOptions creates a list option with applied limits
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func NewAbsoluteListOptions(skip, take int) *AbsoluteListOptions {
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if skip < 0 {
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skip = 0
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}
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if take <= 0 {
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take = setting.API.DefaultPagingNum
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}
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if take > setting.API.MaxResponseItems {
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take = setting.API.MaxResponseItems
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}
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return &AbsoluteListOptions{skip, take}
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}
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// GetSkipTake returns the skip and take values
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func (opts *AbsoluteListOptions) GetSkipTake() (skip, take int) {
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return opts.skip, opts.take
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}
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// GetStartEnd returns the start and end values
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func (opts *AbsoluteListOptions) GetStartEnd() (start, end int) {
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return opts.skip, opts.skip + opts.take
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}
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