Achim Rohn
52 lines
1.2 KiB
Cheetah
52 lines
1.2 KiB
Cheetah
{{ define "pagination_query" }}
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// Code generated by entc template, DO NOT EDIT.
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{{/* A template that adds the functionality for running each client <T> in debug mode */}}
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{{/* Add the base header for the generated file */}}
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{{ $pkg := base $.Config.Package }}
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{{ template "header" $ }}
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{{ range $n := $.Nodes }}
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// PaginateAfterID paginates {{ $n.Name }} by monotonically increasing "id".
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// It preserves any existing filters/joins applied to the query, fetches up to "limit" items,
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// and returns the next cursor (last ID of this page) and whether a next page exists.
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func (q *{{ $n.Name }}Query) PaginateAfterID(ctx context.Context, afterID, limit int) ([]*{{ $n.Name }}, int, bool, error) {
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if limit <= 0 {
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limit = 20
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}
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qq := q.Clone().
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Order(func(s *sql.Selector) {
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s.OrderBy(s.C("id"))
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}).
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Limit(limit + 1) // fetch one extra to detect "has next"
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if afterID > 0 {
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qq = qq.Where(func(s *sql.Selector) {
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s.Where(sql.GT(s.C("id"), afterID))
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})
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}
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rows, err := qq.All(ctx)
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if err != nil {
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return nil, 0, false, err
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}
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hasNext := len(rows) > limit
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if hasNext {
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rows = rows[:limit]
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}
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next := 0
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if len(rows) > 0 {
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next = rows[len(rows)-1].ID
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}
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return rows, next, hasNext, nil
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}
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{{ end }}
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{{ end }} |