loader

package

v0.0.0-...-47e1cbe Latest Latest Go to latest Published: Aug 8, 2024 License: Apache-2.0 Imports: 4 Imported by: 0

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type DBLoader struct {
	// contains filtered or unexported fields
}

A DBLoader can fetch a graph of objects from the database

func NewDBLoader(db *sqlx.DB) *DBLoader

NewDBLoader makes a new DBLoader

func (l *DBLoader) ExecuteBatches()

func (l *DBLoader) FetchLikesByPostID(postID types.ID, fieldNames []string) <-chan LikesFetchResult

func (l *DBLoader) FetchLikesByUserID(userID types.ID, fieldNames []string) <-chan LikesFetchResult

func (l *DBLoader) FetchPostByID(postID types.ID, fieldNames []string) <-chan PostFetchResult

func (l *DBLoader) FetchPosts(from types.ID, count types.Int, fieldNames []string) <-chan PostsFetchResult

func (l *DBLoader) FetchPostsByUserID(userID types.ID, fieldNames []string) <-chan PostsFetchResult

func (l *DBLoader) FetchUserByID(userID types.ID, fieldNames []string) <-chan UserFetchResult

func (l *DBLoader) FetchUsers(from types.ID, count types.Int, fieldNames []string) <-chan UsersFetchResult

type LikeColumns struct {
	ID     types.ID
	UserID types.ID `db:"user_id"`
	PostID types.ID `db:"post_id"`
}

type LikesFetchResult struct {
	Error error
	Likes []*LikeColumns
}

type PostColumns struct {
	ID       types.ID
	AuthorID types.ID `db:"author_id"`
	Title    types.String
	Body     types.String
}

type PostFetchResult struct {
	Error error
	Post  *PostColumns
}

type PostsFetchResult struct {
	Error error
	Posts []*PostColumns
}

type UserColumns struct {
	ID   types.ID
	Name types.String
}

type UserFetchResult struct {
	Error error
	User  *UserColumns
}

type UsersFetchResult struct {
	Error error
	Users []*UserColumns
}