/
collection.go
192 lines (172 loc) · 5.83 KB
/
collection.go
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package mongodb
import (
"context"
"errors"
"github.com/0xdeschool/deschool-lens/backend/pkg/ddd"
"github.com/0xdeschool/deschool-lens/backend/pkg/errx"
"github.com/0xdeschool/deschool-lens/backend/pkg/ginx"
"github.com/0xdeschool/deschool-lens/backend/pkg/utils/linq"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
type Collection[TEntity any] struct {
c *mongo.Collection
}
func NewCollection[TEntity any](c *mongo.Collection) *Collection[TEntity] {
return &Collection[TEntity]{
c: c,
}
}
func (c *Collection[TEntity]) Find(ctx context.Context, filter bson.D, opts ...*options.FindOptions) []TEntity {
filter = c.setSoftDeleteFilter(filter)
cur, err := c.Col().Find(ctx, filter, opts...)
errx.CheckError(err)
data := make([]TEntity, 0)
errx.CheckError(cur.All(context.Background(), &data))
return data
}
func (c *Collection[TEntity]) FindOne(ctx context.Context, filter bson.D, opts ...*options.FindOneOptions) *TEntity {
filter = c.setSoftDeleteFilter(filter)
result := c.Col().FindOne(ctx, filter, opts...)
if errors.Is(result.Err(), mongo.ErrNoDocuments) {
return nil
} else {
errx.CheckError(result.Err())
}
var v TEntity
err := result.Decode(&v)
errx.CheckError(err)
return &v
}
func (r *Collection[TEntity]) Get(ctx context.Context, id primitive.ObjectID) *TEntity {
errx.NotNil(id, "id")
filter := bson.D{{Key: "_id", Value: id}}
return r.FindOne(ctx, filter)
}
func (c *Collection[TEntity]) Count(ctx context.Context, filter bson.D, opts ...*options.CountOptions) int64 {
filter = c.setSoftDeleteFilter(filter)
totalCount, err := c.Col().CountDocuments(ctx, filter, opts...)
errx.CheckError(err)
return totalCount
}
func (r *Collection[TEntity]) GetMany(ctx context.Context, ids []primitive.ObjectID, filter bson.D) []TEntity {
errx.NotNil(ids, "ids")
if len(ids) == 0 {
return make([]TEntity, 0)
}
f := bson.D{{Key: "_id", Value: bson.D{{Key: "$in", Value: ids}}}}
if len(filter) > 0 {
f = append(f, filter...)
}
f = r.setSoftDeleteFilter(f)
result, err := r.Col().Find(ctx, f)
errx.CheckError(err)
data := make([]TEntity, 0)
err = result.All(context.Background(), &data)
errx.CheckError(err)
return data
}
func (r *Collection[TEntity]) GetList(ctx context.Context, filter bson.D, page int64, pageSize int64, opt *options.FindOptions) ([]TEntity, int64) {
totalCount := r.Count(ctx, filter)
findOptions := options.Find().SetLimit(pageSize).SetSkip((page - 1) * pageSize)
data := r.Find(ctx, filter, findOptions, opt)
return data, totalCount
}
func (r *Collection[TEntity]) Exists(ctx context.Context, id primitive.ObjectID) bool {
errx.NotNil(id, "id")
filter := r.setSoftDeleteFilter(bson.D{{Key: "_id", Value: id}})
var result TEntity
err := r.Col().FindOne(ctx, filter).Decode(&result)
if err != nil {
if err == mongo.ErrNoDocuments {
return false
}
panic(err)
}
return true
}
func (r *Collection[TEntity]) ExistsByFilter(ctx context.Context, filter bson.D) bool {
filter = r.setSoftDeleteFilter(filter)
var result TEntity
err := r.Col().FindOne(ctx, filter).Decode(&result)
if err != nil {
if err == mongo.ErrNoDocuments {
return false
}
panic(err)
}
return true
}
func (r *Collection[TEntity]) Insert(ctx context.Context, entity *TEntity) primitive.ObjectID {
ddd.SetAudited(ctx, entity)
result, err := r.Col().InsertOne(ctx, entity)
errx.CheckError(err)
return result.InsertedID.(primitive.ObjectID)
}
func (r *Collection[TEntity]) InsertMany(ctx context.Context, entitis []TEntity, ignoreErr bool) []primitive.ObjectID {
data := ddd.SetAuditedMany(ctx, entitis)
opts := options.InsertMany().SetOrdered(!ignoreErr)
result, err := r.Col().InsertMany(ctx, data, opts)
if !ignoreErr {
errx.CheckError(err)
}
return linq.Map(result.InsertedIDs, func(t *interface{}) primitive.ObjectID { return (*t).(primitive.ObjectID) })
}
func (r *Collection[TEntity]) UpdateByID(ctx context.Context, id primitive.ObjectID, entity *TEntity) int {
ddd.SetAudited(ctx, entity)
result, err := r.Col().UpdateByID(ctx, id, bson.D{{Key: "$set", Value: entity}})
errx.CheckError(err)
return int(result.ModifiedCount)
}
func (r *Collection[TEntity]) UpdateOne(ctx context.Context, filter bson.D, entity *TEntity, opts ...*options.UpdateOptions) int {
filter = r.setSoftDeleteFilter(filter)
ddd.SetAudited(ctx, entity)
result, err := r.Col().UpdateOne(ctx, filter, bson.D{{Key: "$set", Value: entity}}, opts...)
errx.CheckError(err)
return int(result.ModifiedCount)
}
func (r *Collection[TEntity]) Delete(ctx context.Context, id primitive.ObjectID) int {
var v any = (*TEntity)(nil)
if _, ok := v.(ddd.SoftDeleteEntity); ok {
e := r.Get(ctx, id)
var v any = e
softEntity := v.(ddd.DeletionAuditedEntity)
softEntity.Deleting(ctx)
return int(r.UpdateByID(ctx, id, e))
} else {
result, err := r.Col().DeleteOne(ctx, bson.D{{Key: "_id", Value: id}})
errx.CheckError(err)
return int(result.DeletedCount)
}
}
func (r *Collection[TEntity]) DeleteMany(ctx context.Context, ids []primitive.ObjectID) int {
var v any = (*TEntity)(nil)
if _, ok := v.(ddd.DeletionAuditedEntity); ok {
ctx := ginx.WithScopedUnitWork(ctx)
var count int = 0
for i := range ids {
e := r.Get(ctx, ids[i])
var v any = e
softEntity := v.(ddd.DeletionAuditedEntity)
softEntity.Deleting(ctx)
count += r.UpdateByID(ctx, ids[i], e)
}
return int(count)
} else {
result, err := r.Col().DeleteMany(ctx, bson.D{{Key: "_id", Value: bson.M{"$in": ids}}})
errx.CheckError(err)
return int(result.DeletedCount)
}
}
func (c *Collection[TEntity]) setSoftDeleteFilter(filter bson.D) bson.D {
var v any = (*TEntity)(nil)
if _, ok := v.(ddd.SoftDeleteEntity); ok {
return append(filter, bson.E{Key: ddd.SoftDeleteFieldName, Value: false})
}
return filter
}
func (c *Collection[TEntity]) Col() *mongo.Collection {
return c.c
}