69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
package sqlite3
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import (
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"github.com/fiatjaf/eventstore"
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"github.com/jmoiron/sqlx"
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"github.com/jmoiron/sqlx/reflectx"
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_ "github.com/mattn/go-sqlite3"
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)
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const (
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queryLimit = 100
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queryIDsLimit = 500
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queryAuthorsLimit = 500
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queryKindsLimit = 10
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queryTagsLimit = 10
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)
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var _ eventstore.Store = (*SQLite3Backend)(nil)
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var ddls = []string{
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`CREATE TABLE IF NOT EXISTS event (
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id text NOT NULL,
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pubkey text NOT NULL,
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created_at integer NOT NULL,
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kind integer NOT NULL,
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tags jsonb NOT NULL,
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content text NOT NULL,
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sig text NOT NULL);`,
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`CREATE UNIQUE INDEX IF NOT EXISTS ididx ON event(id)`,
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`CREATE INDEX IF NOT EXISTS pubkeyprefix ON event(pubkey)`,
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`CREATE INDEX IF NOT EXISTS timeidx ON event(created_at DESC)`,
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`CREATE INDEX IF NOT EXISTS kindidx ON event(kind)`,
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`CREATE INDEX IF NOT EXISTS kindtimeidx ON event(kind,created_at DESC)`,
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}
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func (b *SQLite3Backend) Init() error {
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db, err := sqlx.Connect("sqlite3", b.DatabaseURL)
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if err != nil {
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return err
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}
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db.Mapper = reflectx.NewMapperFunc("json", sqlx.NameMapper)
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b.DB = db
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for _, ddl := range ddls {
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_, err = b.DB.Exec(ddl)
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if err != nil {
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return err
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}
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}
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if b.QueryLimit == 0 {
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b.QueryLimit = queryLimit
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}
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if b.QueryIDsLimit == 0 {
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b.QueryIDsLimit = queryIDsLimit
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}
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if b.QueryAuthorsLimit == 0 {
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b.QueryAuthorsLimit = queryAuthorsLimit
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}
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if b.QueryKindsLimit == 0 {
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b.QueryKindsLimit = queryKindsLimit
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}
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if b.QueryTagsLimit == 0 {
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b.QueryTagsLimit = queryTagsLimit
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}
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return nil
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}
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