52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package common
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import "time"
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// Pagination 分页请求参数
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type Pagination struct {
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Page int `form:"page" json:"page" binding:"min=1"`
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PageSize int `form:"page_size" json:"page_size" binding:"min=1,max=100"`
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}
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// PaginatedResult 分页响应
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type PaginatedResult struct {
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Items interface{} `json:"items"`
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Total int64 `json:"total"`
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Page int `json:"page"`
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PageSize int `json:"page_size"`
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TotalPages int `json:"total_pages"`
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}
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// DefaultPagination 默认分页（未传参时使用）
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func (p *Pagination) DefaultPagination() {
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if p.Page < 1 {
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p.Page = 1
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}
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if p.PageSize < 1 || p.PageSize > 100 {
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p.PageSize = 20
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}
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}
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// Offset 计算 SQL offset
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func (p *Pagination) Offset() int {
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return (p.Page - 1) * p.PageSize
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}
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// NewPaginatedResult 构建分页响应
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func NewPaginatedResult(items interface{}, total int64, page, pageSize int) *PaginatedResult {
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totalPages := int(total) / pageSize
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if int(total)%pageSize > 0 {
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totalPages++
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}
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return &PaginatedResult{
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Items: items,
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Total: total,
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Page: page,
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PageSize: pageSize,
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TotalPages: totalPages,
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}
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}
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// 固定时间格式，前后端统一
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const TimeFormat = time.RFC3339
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