38 lines
913 B
Go
38 lines
913 B
Go
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package publisher
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import (
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"context"
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"iter"
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"lmika.dev/lmika/weiro/models"
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"lmika.dev/lmika/weiro/providers/db"
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)
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// PostIter returns a post iterator which returns posts in reverse chronological order.
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func (s *Publisher) postIter(ctx context.Context, site int64) iter.Seq[models.Maybe[*models.Post]] {
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return func(yield func(models.Maybe[*models.Post]) bool) {
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paging := db.PagingParams{Offset: 0, Limit: 50}
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page, err := s.db.SelectPostsOfSite(ctx, site, false, paging)
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if err != nil {
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yield(models.Maybe[*models.Post]{Err: err})
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return
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}
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for {
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for _, post := range page {
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if !yield(models.Maybe[*models.Post]{Value: post}) {
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return
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}
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}
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paging.Offset += paging.Limit
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page, err = s.db.SelectPostsOfSite(ctx, site, false, paging)
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if err != nil {
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yield(models.Maybe[*models.Post]{Err: err})
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return
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} else if len(page) == 0 {
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return
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}
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}
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}
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}
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