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Use first element in a tag as a local relation field

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This commit is contained in:
Nikita Tokarchuk
2019-05-17 14:04:00 +02:00
parent f8e84df81e
commit e973a52a88
1 changed files with 5 additions and 6 deletions
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mongox/common/common.go
+5 -6
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@@ -78,9 +78,9 @@ func createAggregateLoad(db *mongox.Database, target interface{}, composed *quer
panic("there is no foreign field")
}
preloadName := strings.TrimSpace(preloadData[0])
if len(preloadName) == 0 {
preloadName = jsonName
localField := strings.TrimSpace(preloadData[0])
if len(localField) == 0 {
localField = "_id"
}
foreignField := strings.TrimSpace(preloadData[1])
@@ -106,7 +106,7 @@ func createAggregateLoad(db *mongox.Database, target interface{}, composed *quer
}
for _, preload := range preloads {
if preload != preloadName {
if preload != jsonName {
continue
}
@@ -119,9 +119,8 @@ func createAggregateLoad(db *mongox.Database, target interface{}, composed *quer
typ := el.Field(i).Type()
lookupCollection := db.GetCollectionOf(reflect.Zero(typ).Interface())
lookupVars := primitive.M{"selector": "$_id"}
lookupVars := primitive.M{"selector": "$" + localField}
lookupPipeline := primitive.A{
// todo: make match from composed query
primitive.M{"$match": primitive.M{"$expr": primitive.M{"$eq": primitive.A{"$" + foreignField, "$$selector"}}}},
}