1 files changed, 205 insertions, 0 deletions
diff --git a/internal/db/pg/basic.go b/internal/db/pg/basic.go
new file mode 100644
index 000000000..6e76b4450
--- /dev/null
+++ b/internal/db/pg/basic.go
@@ -0,0 +1,205 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package pg
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/go-pg/pg/v10"
+	"github.com/go-pg/pg/v10/orm"
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+)
+
+type basicDB struct {
+	config *config.Config
+	conn   *pg.DB
+	log    *logrus.Logger
+	cancel context.CancelFunc
+}
+
+func (b *basicDB) Put(i interface{}) db.Error {
+	_, err := b.conn.Model(i).Insert(i)
+	if err != nil && strings.Contains(err.Error(), "duplicate key value violates unique constraint") {
+		return db.ErrAlreadyExists
+	}
+	return err
+}
+
+func (b *basicDB) GetByID(id string, i interface{}) db.Error {
+	if err := b.conn.Model(i).Where("id = ?", id).Select(); err != nil {
+		if err == pg.ErrNoRows {
+			return db.ErrNoEntries
+		}
+		return err
+
+	}
+	return nil
+}
+
+func (b *basicDB) GetWhere(where []db.Where, i interface{}) db.Error {
+	if len(where) == 0 {
+		return errors.New("no queries provided")
+	}
+
+	q := b.conn.Model(i)
+	for _, w := range where {
+
+		if w.Value == nil {
+			q = q.Where("? IS NULL", pg.Ident(w.Key))
+		} else {
+			if w.CaseInsensitive {
+				q = q.Where("LOWER(?) = LOWER(?)", pg.Safe(w.Key), w.Value)
+			} else {
+				q = q.Where("? = ?", pg.Safe(w.Key), w.Value)
+			}
+		}
+	}
+
+	if err := q.Select(); err != nil {
+		if err == pg.ErrNoRows {
+			return db.ErrNoEntries
+		}
+		return err
+	}
+	return nil
+}
+
+func (b *basicDB) GetAll(i interface{}) db.Error {
+	if err := b.conn.Model(i).Select(); err != nil {
+		if err == pg.ErrNoRows {
+			return db.ErrNoEntries
+		}
+		return err
+	}
+	return nil
+}
+
+func (b *basicDB) DeleteByID(id string, i interface{}) db.Error {
+	if _, err := b.conn.Model(i).Where("id = ?", id).Delete(); err != nil {
+		// if there are no rows *anyway* then that's fine
+		// just return err if there's an actual error
+		if err != pg.ErrNoRows {
+			return err
+		}
+	}
+	return nil
+}
+
+func (b *basicDB) DeleteWhere(where []db.Where, i interface{}) db.Error {
+	if len(where) == 0 {
+		return errors.New("no queries provided")
+	}
+
+	q := b.conn.Model(i)
+	for _, w := range where {
+		q = q.Where("? = ?", pg.Safe(w.Key), w.Value)
+	}
+
+	if _, err := q.Delete(); err != nil {
+		// if there are no rows *anyway* then that's fine
+		// just return err if there's an actual error
+		if err != pg.ErrNoRows {
+			return err
+		}
+	}
+	return nil
+}
+
+func (b *basicDB) Upsert(i interface{}, conflictColumn string) db.Error {
+	if _, err := b.conn.Model(i).OnConflict(fmt.Sprintf("(%s) DO UPDATE", conflictColumn)).Insert(); err != nil {
+		if err == pg.ErrNoRows {
+			return db.ErrNoEntries
+		}
+		return err
+	}
+	return nil
+}
+
+func (b *basicDB) UpdateByID(id string, i interface{}) db.Error {
+	if _, err := b.conn.Model(i).Where("id = ?", id).OnConflict("(id) DO UPDATE").Insert(); err != nil {
+		if err == pg.ErrNoRows {
+			return db.ErrNoEntries
+		}
+		return err
+	}
+	return nil
+}
+
+func (b *basicDB) UpdateOneByID(id string, key string, value interface{}, i interface{}) db.Error {
+	_, err := b.conn.Model(i).Set("? = ?", pg.Safe(key), value).Where("id = ?", id).Update()
+	return err
+}
+
+func (b *basicDB) UpdateWhere(where []db.Where, key string, value interface{}, i interface{}) db.Error {
+	q := b.conn.Model(i)
+
+	for _, w := range where {
+		if w.Value == nil {
+			q = q.Where("? IS NULL", pg.Ident(w.Key))
+		} else {
+			if w.CaseInsensitive {
+				q = q.Where("LOWER(?) = LOWER(?)", pg.Safe(w.Key), w.Value)
+			} else {
+				q = q.Where("? = ?", pg.Safe(w.Key), w.Value)
+			}
+		}
+	}
+
+	q = q.Set("? = ?", pg.Safe(key), value)
+
+	_, err := q.Update()
+
+	return err
+}
+
+func (b *basicDB) CreateTable(i interface{}) db.Error {
+	return b.conn.Model(i).CreateTable(&orm.CreateTableOptions{
+		IfNotExists: true,
+	})
+}
+
+func (b *basicDB) DropTable(i interface{}) db.Error {
+	return b.conn.Model(i).DropTable(&orm.DropTableOptions{
+		IfExists: true,
+	})
+}
+
+func (b *basicDB) RegisterTable(i interface{}) db.Error {
+	orm.RegisterTable(i)
+	return nil
+}
+
+func (b *basicDB) IsHealthy(ctx context.Context) db.Error {
+	return b.conn.Ping(ctx)
+}
+
+func (b *basicDB) Stop(ctx context.Context) db.Error {
+	b.log.Info("closing db connection")
+	if err := b.conn.Close(); err != nil {
+		// only cancel if there's a problem closing the db
+		b.cancel()
+		return err
+	}
+	return nil
+}