91 lines
1.5 KiB
Go
91 lines
1.5 KiB
Go
// Copyright 2024 Patial Tech (Ankit Patial).
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// All rights reserved.
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package request
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import (
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"net/http"
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"strconv"
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"strings"
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"code.patial.tech/go/appcore/ptr"
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)
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type Pager struct {
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Search string
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OrderBy *string `json:"orderBy"`
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OrderAsc *bool `json:"orderAsc"`
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Page int `json:"page"`
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Size int `json:"size"`
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Total int `json:"total"`
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TotalNeeded bool `json:"-"`
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}
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func (i *Pager) HasSearch() bool {
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if i == nil {
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return false
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}
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return strings.TrimSpace(i.Search) != ""
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}
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func (i *Pager) Offset() int {
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if i == nil {
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return 0
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}
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return (i.Page - 1) * i.Limit()
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}
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func (i *Pager) Limit() int {
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if i == nil || ptr.GetNumber(&i.Size) < 1 {
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return 20
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}
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return i.Size
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}
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// GetPager info from request's query parameters
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func GetPager(r *http.Request) Pager {
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p := Pager{
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Page: 1,
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Size: 20,
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OrderAsc: ptr.Bool(true),
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}
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if v := r.URL.Query().Get("q"); v != "" {
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p.Search = strings.TrimSpace(v)
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}
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if v := r.URL.Query().Get("pg"); v != "" {
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if vv, err := strconv.Atoi(v); err == nil {
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p.Page = int(vv)
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}
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}
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if v := r.URL.Query().Get("pg_s"); v != "" {
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if vv, err := strconv.Atoi(v); err == nil {
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p.Size = int(vv)
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}
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}
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if v := r.URL.Query().Get("pg_ob"); v != "" {
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p.OrderBy = &v
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}
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if v := r.URL.Query().Get("pg_o"); v != "" {
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switch strings.ToLower(v) {
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case "asc":
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p.OrderAsc = ptr.Bool(true)
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case "desc":
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p.OrderAsc = ptr.Bool(false)
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}
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}
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if v := r.URL.Query().Get("pg_t"); v == "n" {
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p.TotalNeeded = true
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}
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return p
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}
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