Documentation
¶
Overview ¶
Package paging contains utilities to handle pagination.
The Paging struct represents the paging information and it is automatically populated by the New function.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func ComputeOffsetAndLimit ¶
ComputeOffsetAndLimit computes the OFFSET (zero based) and LIMIT values to be used with SQL queries.
Example ¶
package main
import (
"fmt"
"github.com/Vonage/gosrvlib/pkg/paging"
)
func main() {
var (
currentPage uint = 3
pageSize uint = 5
)
offset, limit := paging.ComputeOffsetAndLimit(currentPage, pageSize)
fmt.Println(offset)
fmt.Println(limit)
}
Output: 10 5
Types ¶
type Paging ¶
type Paging struct {
// CurrentPage is the current page number starting from 1.
CurrentPage uint `json:"page"`
// PageSize is the maximum number of items that can be contained in a page. It is also the LIMIT in SQL queries.
PageSize uint `json:"page_size"`
// TotalItems is the total number of items to be paginated.
TotalItems uint `json:"total_items"`
// TotalPages is the total number of pages required to contain all the items.
TotalPages uint `json:"total_pages"`
// PreviousPage is the previous page. It is equal to 1 if we are on the first page (CurrentPage == 1).
PreviousPage uint `json:"previous_page"`
// NextPage is the next page. It is equal to TotalPages if we are on the last page (CurrentPage == TotalPages).
NextPage uint `json:"next_page"`
// Offset is the zero-based number of items before the current page.
Offset uint `json:"offset"`
}
Paging contains the paging information.
func New ¶
New returns a new paging information instance.
Example ¶
package main
import (
"fmt"
"github.com/Vonage/gosrvlib/pkg/paging"
)
func main() {
var (
currentPage uint = 3
pageSize uint = 5
totalItems uint = 17
)
// calculate new paging parameters
p := paging.New(currentPage, pageSize, totalItems)
fmt.Println(p)
}
Output: {3 5 17 4 2 4 10}
Source Files
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