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loaders.go
executable file
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/
loaders.go
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package gen
import (
"context"
"github.com/graph-gophers/dataloader"
)
func GetLoaders(db *DB) map[string]*dataloader.Loader {
loaders := map[string]*dataloader.Loader{}
changelog_changesBatchFn := func(ctx context.Context, keys dataloader.Keys) []*dataloader.Result {
var results []*dataloader.Result
ids := make([]string, len(keys))
for i, key := range keys {
ids[i] = key.String()
}
items := &[]ChangelogChange{}
res := db.Query().Find(items, "id IN (?)", ids)
if res.Error != nil && !res.RecordNotFound() {
return []*dataloader.Result{
&dataloader.Result{Error: res.Error},
}
}
itemMap := make(map[string]ChangelogChange, len(keys))
for _, item := range *items {
itemMap[item.ID] = item
}
for _, key := range keys {
id := key.String()
item, ok := itemMap[id]
if !ok {
results = append(results, &dataloader.Result{
Data: nil,
Error: nil,
// Error: fmt.Errorf("ChangelogChange with id '%s' not found", id),
})
} else {
results = append(results, &dataloader.Result{
Data: &item,
Error: nil,
})
}
}
return results
}
loaders["ChangelogChange"] = dataloader.NewBatchedLoader(changelog_changesBatchFn, dataloader.WithClearCacheOnBatch())
changelogsBatchFn := func(ctx context.Context, keys dataloader.Keys) []*dataloader.Result {
var results []*dataloader.Result
ids := make([]string, len(keys))
for i, key := range keys {
ids[i] = key.String()
}
items := &[]Changelog{}
res := db.Query().Find(items, "id IN (?)", ids)
if res.Error != nil && !res.RecordNotFound() {
return []*dataloader.Result{
&dataloader.Result{Error: res.Error},
}
}
itemMap := make(map[string]Changelog, len(keys))
for _, item := range *items {
itemMap[item.ID] = item
}
for _, key := range keys {
id := key.String()
item, ok := itemMap[id]
if !ok {
results = append(results, &dataloader.Result{
Data: nil,
Error: nil,
// Error: fmt.Errorf("Changelog with id '%s' not found", id),
})
} else {
results = append(results, &dataloader.Result{
Data: &item,
Error: nil,
})
}
}
return results
}
loaders["Changelog"] = dataloader.NewBatchedLoader(changelogsBatchFn, dataloader.WithClearCacheOnBatch())
return loaders
}