https://github.com/go-pg/urlstruct

urlstruct decodes url.Values into structs
https://github.com/go-pg/urlstruct

go go-pg golang postgresql

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urlstruct decodes url.Values into structs

• Host: GitHub
• URL: https://github.com/go-pg/urlstruct
• Owner: go-pg
• License: bsd-2-clause
• Created: 2019-09-24T10:22:16.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-12-30T18:36:11.000Z (10 days ago)
• Last Synced: 2025-01-02T10:07:13.345Z (8 days ago)
• Topics: go, go-pg, golang, postgresql
• Language: Go
• Homepage: https://godoc.org/github.com/go-pg/urlstruct
• Size: 76.2 KB
• Stars: 27
• Watchers: 4
• Forks: 3
• Open Issues: 9
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# urlstruct decodes url.Values into structs

[![Build Status](https://travis-ci.org/go-pg/urlstruct.svg?branch=master)](https://travis-ci.org/go-pg/urlstruct)

[![GoDoc](https://godoc.org/github.com/go-pg/urlstruct?status.svg)](https://godoc.org/github.com/go-pg/urlstruct)

## Example

Following example decodes URL query `?page=2&limit=100&author_id=123` into a struct.

```go

type Book struct {

	tableName struct{} `pg:"alias:b"`

	ID        int64

	AuthorID  int64

	CreatedAt time.Time

}

type BookFilter struct {

	tableName struct{} `urlstruct:"b"`

	urlstruct.Pager

	AuthorID int64

}

func ExampleUnmarshal_filter() {

	db := pg.Connect(&pg.Options{

		User:     "postgres",

		Password: "",

		Database: "postgres",

	})

	defer db.Close()

	values := url.Values{

		"author_id": {"123"},

		"page":      {"2"},

		"limit":     {"100"},

	}

	filter := new(BookFilter)

	err := urlstruct.Unmarshal(values, filter)

	if err != nil {

		panic(err)

	}

	filter.Pager.MaxLimit = 100     // default max limit is 1000

	filter.Pager.MaxOffset = 100000 // default max offset is 1000000

	// Following query generates:

	//

	// SELECT "b"."id", "b"."author_id", "b"."created_at"

	// FROM "books" AS "b"

	// WHERE "b".author_id = 123

	// LIMIT 100 OFFSET 100

	var books []*Book

	_ = db.Model(&books).

		WhereStruct(filter).

		Limit(filter.Pager.GetLimit()).

		Offset(filter.Pager.GetOffset()).

		Select()

	fmt.Println("author", filter.AuthorID)

	fmt.Println("limit", filter.GetLimit())

	fmt.Println("offset", filter.GetLimit())

	// Output: author 123

	// limit 100

	// offset 100

}

```