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36 lines
841 B
36 lines
841 B
package database
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import (
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"fmt"
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"github.com/mainnika/mongox-go-driver/v2/mongox"
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"github.com/mainnika/mongox-go-driver/v2/mongox/query"
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)
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// LoadStream function loads documents one by one into a target channel
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func (d *Database) LoadStream(target interface{}, filters ...interface{}) (loader mongox.StreamLoader, err error) {
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composed, err := query.Compose(filters...)
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if err != nil {
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return
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}
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_, hasPreloader := composed.Preloader()
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ctx := query.WithContext(d.Context(), composed)
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var cursor *mongox.Cursor
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if hasPreloader {
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cursor, err = d.createAggregateLoad(target, composed)
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} else {
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cursor, err = d.createSimpleLoad(target, composed)
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}
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if err != nil {
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err = fmt.Errorf("can't create find result: %w", err)
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return
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}
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loader = &StreamLoader{cur: cursor, ctx: ctx, ref: target, query: composed}
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return
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}
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