fts5/fts5.go

@@ -1,151 +0,0 @@
-package fts5
-
-import (
-	"database/sql"
-	"fmt"
-	"iter"
-	"strings"
-
-	_ "github.com/mattn/go-sqlite3"
-)
-
-type FTS5 struct {
-	colNames []string
-	db       *sql.DB
-
-	insertStmt *sql.Stmt
-	matchStmt  *sql.Stmt
-}
-
-func OpenMem(columnNames ...string) (*FTS5, error) {
-	db, err := sql.Open("sqlite3", ":memory:")
-	if err != nil {
-		return nil, err
-	}
-	return newInternal(db, columnNames)
-}
-
-func Open(path string, columnNames ...string) (*FTS5, error) {
-	db, err := sql.Open("sqlite3", path)
-	if err != nil {
-		return nil, err
-	}
-	return newInternal(db, columnNames)
-}
-
-func newInternal(db *sql.DB, columnNames []string) (*FTS5, error) {
-	_, err := db.Exec(fmt.Sprintf(
-		`CREATE VIRTUAL TABLE IF NOT EXISTS search USING fts5(%s, tokenize='porter')`,
-		strings.Join(columnNames, ",")))
-	if err != nil {
-		db.Close()
-		return nil, err
-	}
-
-	insertStmt, err := prepareInsertStmt(db, columnNames)
-	if err != nil {
-		db.Close()
-		return nil, err
-	}
-
-	matchStmt, err := db.Prepare(`SELECT rowid,rank FROM search WHERE search=? ` +
-		`ORDER BY rank ` +
-		`LIMIT ? OFFSET ?`)
-	if err != nil {
-		db.Close()
-		return nil, err
-	}
-
-	return &FTS5{
-		colNames:   columnNames,
-		db:         db,
-		insertStmt: insertStmt,
-		matchStmt:  matchStmt,
-	}, nil
-}
-
-func (fts *FTS5) Close() error {
-	return fts.db.Close()
-}
-
-func (fts *FTS5) Upsert(id int64, data map[string]string) error {
-	return execInsertStmt(fts.insertStmt, fts.colNames, id, data)
-}
-
-type Item struct {
-	ID   int64
-	Data map[string]string
-}
-
-func (fts *FTS5) UpsertBulk(src iter.Seq2[Item, error]) error {
-	tx, err := fts.db.Begin()
-	if err != nil {
-		return err
-	}
-
-	insertStmt, err := prepareInsertStmt(tx, fts.colNames)
-	if err != nil {
-		tx.Rollback()
-		return err
-	}
-
-	for item, err := range src {
-		if err != nil {
-			tx.Rollback()
-			return err
-		}
-
-		if err := execInsertStmt(insertStmt, fts.colNames, item.ID, item.Data); err != nil {
-			tx.Rollback()
-			return err
-		}
-	}
-
-	return tx.Commit()
-}
-
-func (fts *FTS5) Delete(id int64) (bool, error) {
-	result, err := fts.db.Exec(`DELETE FROM search WHERE rowid=?`, id)
-	if err != nil {
-		return false, err
-	}
-
-	count, err := result.RowsAffected()
-	if err != nil {
-		panic(err)
-	}
-	if count > 1 {
-		panic("multiple rows deleted")
-	}
-	return count > 0, nil
-}
-
-func (fts *FTS5) DeleteAll() error {
-	_, err := fts.db.Exec(`DELETE FROM search`)
-	return err
-}
-
-type Result struct {
-	ID   int64
-	Rank float64
-}
-
-func (fts *FTS5) Match(query string, limit, offset int) ([]Result, error) {
-	results := make([]Result, 0, limit)
-
-	rows, err := fts.matchStmt.Query(query, limit, offset)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	for rows.Next() {
-		result := Result{}
-		if err := rows.Scan(&result.ID, &result.Rank); err != nil {
-			return nil, err
-		}
-		results = append(results, result)
-	}
-
-	return results, nil
-}

fts5/fts5_test.go

@@ -1,59 +0,0 @@
-package fts5
-
-import (
-	"testing"
-)
-
-func TestMatch(t *testing.T) {
-	fts, err := OpenMem("Title", "Text")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	fts.Upsert(100, map[string]string{
-		"Title": "Peter Rabbit",
-		"Text":  "Peter Rabbit is a fictional animal character in various children's stories by English author Beatrix Potter.",
-	})
-
-	fts.Upsert(200, map[string]string{
-		"Title": "Baloo",
-		"Text":  "Fictional bear from the Jungle Book.",
-	})
-
-	fts.Upsert(300, map[string]string{
-		"Title": "Barney Bear",
-		"Text":  "A grumpy brown bear.",
-	})
-
-	fts.Upsert(400, map[string]string{
-		"Title": "Peter the Panda",
-		"Text":  "A secret agent panda from Seattle.",
-	})
-
-	// Should have 2 results for "peter".
-	results, err := fts.Match("peter", 3, 0)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(results) != 2 {
-		t.Fatal(results)
-	}
-
-	// Try limit.
-	results, err = fts.Match("peter", 1, 0)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(results) != 1 {
-		t.Fatal(results)
-	}
-
-	// Try offset.
-	results, err = fts.Match("peter", 3, 1)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(results) != 1 {
-		t.Fatal(results)
-	}
-}

fts5/query.go

@@ -1,36 +0,0 @@
-package fts5
-
-import (
-	"database/sql"
-	"fmt"
-	"strings"
-)
-
-type preparer interface {
-	Prepare(string) (*sql.Stmt, error)
-}
-
-func prepareInsertStmt(
-	db preparer,
-	columnNames []string,
-) (*sql.Stmt, error) {
-	insertQuery := fmt.Sprintf(`INSERT INTO search(rowid,%s) VALUES (?%s)`,
-		strings.Join(columnNames, ","),
-		strings.Repeat(",?", len(columnNames)))
-	return db.Prepare(insertQuery)
-}
-
-func execInsertStmt(
-	stmt *sql.Stmt,
-	colNames []string,
-	id int64,
-	data map[string]string,
-) error {
-	values := make([]any, len(colNames)+1)
-	values[0] = id
-	for i, col := range colNames {
-		values[i+1] = data[col]
-	}
-	_, err := stmt.Exec(values...)
-	return err
-}

fts5/requiretag.go

@@ -1,9 +0,0 @@
-//go:build !fts5
-
-package fts5
-
-import "log"
-
-func init() {
-	log.Fatal("You must provide build tag `-tags fts5`.")
-}

go.mod

@@ -4,19 +4,9 @@ go 1.23.2
 
 require (
 	github.com/lib/pq v1.10.9
-	github.com/mailgun/mailgun-go/v4 v4.18.5
 	github.com/mattn/go-sqlite3 v1.14.24
 	golang.org/x/crypto v0.29.0
 	golang.org/x/net v0.31.0
 )
 
-require (
+require golang.org/x/text v0.20.0 // indirect
-	github.com/go-chi/chi/v5 v5.0.8 // indirect
-	github.com/json-iterator/go v1.1.10 // indirect
-	github.com/mailgun/errors v0.3.0 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
-	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
-	github.com/sirupsen/logrus v1.9.0 // indirect
-	golang.org/x/sys v0.27.0 // indirect
-	golang.org/x/text v0.20.0 // indirect
-)

go.sum

@@ -1,44 +1,10 @@
-github.com/ahmetb/go-linq v3.0.0+incompatible h1:qQkjjOXKrKOTy83X8OpRmnKflXKQIL/mC/gMVVDMhOA=
-github.com/ahmetb/go-linq v3.0.0+incompatible/go.mod h1:PFffvbdbtw+QTB0WKRP0cNht7vnCfnGlEpak/DVg5cY=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0=
-github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
-github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-github.com/mailgun/errors v0.3.0 h1:g8R8lodkwqk5WIVMAClyUqt0PSd5JTVgobB+H7C2sLs=
-github.com/mailgun/errors v0.3.0/go.mod h1:+ltknP+jhv3gZ1StKY6ugoQECcPxDCaSdmYesqTZcLQ=
-github.com/mailgun/mailgun-go/v4 v4.18.5 h1:wZnTutW/fzxNyJVBMa6O4LLGW/hO+IGfKpuqBT4nbVs=
-github.com/mailgun/mailgun-go/v4 v4.18.5/go.mod h1:+d4FCswFAukgYc1XtKK2IxOYaVxjVm8AN2z/5TBiT8M=
 github.com/mattn/go-sqlite3 v1.14.24 h1:tpSp2G2KyMnnQu99ngJ47EIkWVmliIizyZBfPrBWDRM=
 github.com/mattn/go-sqlite3 v1.14.24/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
-github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 golang.org/x/crypto v0.29.0 h1:L5SG1JTTXupVV3n6sUqMTeWbjAyfPwoda2DLX8J8FrQ=
 golang.org/x/crypto v0.29.0/go.mod h1:+F4F4N5hv6v38hfeYwTdx20oUvLLc+QfrE9Ax9HtgRg=
 golang.org/x/net v0.31.0 h1:68CPQngjLL0r2AlUKiSxtQFKvzRVbnzLwMUn5SzcLHo=
 golang.org/x/net v0.31.0/go.mod h1:P4fl1q7dY2hnZFxEk4pPSkDHF+QqjitcnDjUQyMM+pM=
-golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.27.0 h1:wBqf8DvsY9Y/2P8gAfPDEYNuS30J4lPHJxXSb/nJZ+s=
-golang.org/x/sys v0.27.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
 golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

mgmailer/mailer.go

@@ -1,43 +0,0 @@
-package mgmailer
-
-import (
-	"context"
-	"fmt"
-	"sync/atomic"
-	"time"
-
-	"github.com/mailgun/mailgun-go/v4"
-)
-
-type Config struct {
-	MailgunDomain string
-	MailgunAPIKey string
-	SenderEmail   string
-	SenderName    string
-}
-
-type Mailer struct {
-	conf atomic.Pointer[Config]
-	mg   atomic.Pointer[mailgun.MailgunImpl]
-}
-
-func (m *Mailer) Update(conf Config) {
-	m.conf.Store(&conf)
-	m.mg.Store(mailgun.NewMailgun(conf.MailgunDomain, conf.MailgunAPIKey))
-}
-
-func (m *Mailer) Send(subject, body, to string) error {
-	mg := m.mg.Load()
-	conf := m.conf.Load()
-	message := mailgun.NewMessage(
-		fmt.Sprintf("%s <%s>", conf.SenderName, conf.SenderEmail),
-		subject,
-		body,
-		to)
-
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-	defer cancel()
-
-	_, _, err := mg.Send(ctx, message)
-	return err
-}

pgutil/errors.go

@@ -14,7 +14,7 @@ func ErrIsForeignKey(err error) bool {
 	return ErrHasCode(err, "23503")
 }
 
-func ErrIsSerializationFailure(err error) bool {
+func ErrIsSerializationFaiilure(err error) bool {
 	return ErrHasCode(err, "40001")
 }
 

pgutil/tx.go

@@ -60,7 +60,7 @@ func (r SerialTxRunner) WithTx(db *sql.DB, fn func(*sql.Tx) error) error {
 		if err == nil {
 			return nil
 		}
-		if timeout > r.MaxTimeout || !ErrIsSerializationFailure(err) {
+		if timeout > r.MaxTimeout || !ErrIsSerializationFaiilure(err) {
 			return err
 		}
 		sleepTimeout := timeout + time.Duration(rand.Int63n(int64(timeout/10)))

sqlgen/main.go

@@ -5,19 +5,14 @@ import (
 	"os"
 )
 
-const (
-	DRIVER_SQLITE   = "sqlite"
-	DRIVER_POSTGRES = "postgres"
-)
-
 func Main() {
 	usage := func() {
 		fmt.Fprintf(os.Stderr, `
 %s DRIVER DEFS_PATH OUTPUT_PATH
 
-Drivers are one of: %s %s
+Drivers are one of: sqlite, postgres
 `,
-			os.Args[0], DRIVER_SQLITE, DRIVER_POSTGRES)
+			os.Args[0])
 		os.Exit(1)
 	}
 
@@ -26,20 +21,21 @@ Drivers are one of: %s %s
 	}
 
 	var (
+		template   string
 		driver     = os.Args[1]
 		defsPath   = os.Args[2]
 		outputPath = os.Args[3]
 	)
 
 	switch driver {
-	case DRIVER_SQLITE, DRIVER_POSTGRES:
+	case "sqlite":
-		// OK
+		template = sqliteTemplate
 	default:
 		fmt.Fprintf(os.Stderr, "Unknown driver: %s", driver)
 		usage()
 	}
 
-	err := render(driver, defsPath, outputPath)
+	err := render(template, defsPath, outputPath)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v", err)
 		os.Exit(1)

sqlgen/parse.go

@@ -6,15 +6,15 @@ import (
 	"strings"
 )
 
-func parsePath(driver, filePath string) (*schema, error) {
+func parsePath(filePath string) (*schema, error) {
 	fileBytes, err := os.ReadFile(filePath)
 	if err != nil {
 		return nil, err
 	}
-	return parseBytes(driver, fileBytes)
+	return parseBytes(fileBytes)
 }
 
-func parseBytes(driver string, fileBytes []byte) (*schema, error) {
+func parseBytes(fileBytes []byte) (*schema, error) {
 	s := string(fileBytes)
 	for _, c := range []string{",", "(", ")", ";"} {
 		s = strings.ReplaceAll(s, c, " "+c+" ")
@@ -29,7 +29,7 @@ func parseBytes(driver string, fileBytes []byte) (*schema, error) {
 	for len(tokens) > 0 {
 		switch tokens[0] {
 		case "TABLE":
-			tokens, err = parseTable(driver, schema, tokens)
+			tokens, err = parseTable(schema, tokens)
 			if err != nil {
 				return nil, err
 			}
@@ -42,7 +42,7 @@ func parseBytes(driver string, fileBytes []byte) (*schema, error) {
 	return schema, nil
 }
 
-func parseTable(driver string, schema *schema, tokens []string) ([]string, error) {
+func parseTable(schema *schema, tokens []string) ([]string, error) {
 	tokens = tokens[1:]
 	if len(tokens) < 3 {
 		return tokens, errors.New("incomplete table definition")
@@ -52,9 +52,8 @@ func parseTable(driver string, schema *schema, tokens []string) ([]string, error
 	}
 
 	table := &table{
-		driver: driver,
+		Name: tokens[0],
-		Name:   tokens[0],
+		Type: tokens[2],
-		Type:   tokens[2],
 	}
 	schema.Tables = append(schema.Tables, table)
 

sqlgen/parse_test.go

@@ -22,7 +22,7 @@ func TestParse(t *testing.T) {
 
 	for _, defPath := range paths {
 		t.Run(filepath.Base(defPath), func(t *testing.T) {
-			parsed, err := parsePath("", defPath)
+			parsed, err := parsePath(defPath)
 			if err != nil {
 				t.Fatal(err)
 			}

sqlgen/schema.go

@@ -10,7 +10,6 @@ type schema struct {
 }
 
 type table struct {
-	driver   string //
 	Name     string // Name in SQL
 	Type     string // Go type
 	NoInsert bool
@@ -30,19 +29,6 @@ type column struct {
 
 // ----------------------------------------------------------------------------
 
-func (t *table) translateQuery(in string) string {
-	if t.driver == DRIVER_SQLITE {
-		return in
-	}
-
-	i := 1
-	for strings.Contains(in, "?") {
-		in = strings.Replace(in, "?", fmt.Sprintf("$%d", i), 1)
-		i++
-	}
-	return in
-}
-
 func (t *table) colSQLNames() []string {
 	names := make([]string, len(t.Columns))
 	for i := range names {
@@ -86,7 +72,7 @@ func (t *table) InsertQuery() string {
 		b.WriteString(`?`)
 	}
 	b.WriteString(`)`)
-	return t.translateQuery(b.String())
+	return b.String()
 }
 
 func (t *table) InsertArgs() string {
@@ -130,7 +116,7 @@ func (t *table) UpdateQuery() string {
 		b.WriteString(` ` + c.SqlName + `=?`)
 	}
 
-	return t.translateQuery(b.String())
+	return b.String()
 }
 
 func (t *table) UpdateArgs() string {
@@ -180,7 +166,7 @@ func (t *table) UpdateFullQuery() string {
 		b.WriteString(` ` + c.SqlName + `=?`)
 	}
 
-	return t.translateQuery(b.String())
+	return b.String()
 }
 
 func (t *table) UpdateFullArgs() string {
@@ -236,7 +222,7 @@ func (t *table) DeleteQuery() string {
 		b.WriteString(col.SqlName)
 		b.WriteString(`=?`)
 	}
-	return t.translateQuery(b.String())
+	return b.String()
 }
 
 func (t *table) DeleteArgs() string {
@@ -262,7 +248,7 @@ func (t *table) GetQuery() string {
 		}
 		b.WriteString(col.SqlName + `=?`)
 	}
-	return t.translateQuery(b.String())
+	return b.String()
 }
 
 func (t *table) ScanArgs() string {

sqlgen/sqlite.go.tmpl

@@ -48,29 +48,27 @@ func {{.Type}}_Insert(
 func {{.Type}}_Update(
 	tx TX,
 	row *{{.Type}},
-) (err error) {
+) (found bool, err error) {
   {{.Type}}_Sanitize(row)
   if err = {{.Type}}_Validate(row); err != nil {
-    return err
+    return false, err
   }
 
 	result, err := tx.Exec("{{.UpdateQuery}}", {{.UpdateArgs}})
 	if err != nil {
-		return err
+		return false, err
 	}
 
 	n, err := result.RowsAffected()
 	if err != nil {
 		panic(err)
 	}
-	switch n {
+
-	case 0:
+	if n > 1 {
-		return sql.ErrNoRows
-	case 1:
-		return nil
-	default:
 		panic("multiple rows updated")
 	}
+
+	return n != 0, nil
 }
 {{- end}}
 
@@ -79,29 +77,27 @@ func {{.Type}}_Update(
 func {{.Type}}_UpdateFull(
 	tx TX,
 	row *{{.Type}},
-) (err error) {
+) (found bool, err error) {
   {{.Type}}_Sanitize(row)
   if err = {{.Type}}_Validate(row); err != nil {
-    return err
+    return false, err
   }
 
 	result, err := tx.Exec("{{.UpdateFullQuery}}", {{.UpdateFullArgs}})
 	if err != nil {
-		return err
+		return false, err
 	}
 
 	n, err := result.RowsAffected()
 	if err != nil {
 		panic(err)
 	}
-	switch n {
+
-		case 0:
+	if n > 1 {
-		return sql.ErrNoRows
-	case 1:
-		return nil
-	default:
 		panic("multiple rows updated")
 	}
+
+	return n != 0, nil
 }
 {{- end}}
 
@@ -113,24 +109,22 @@ func {{.Type}}_UpdateFull(
 func {{.Type}}_Delete(
 	tx TX,
 	{{.PKFunctionArgs -}}
-) (err error) {
+) (found bool, err error) {
 	result, err := tx.Exec("{{.DeleteQuery}}", {{.DeleteArgs}})
-	if err != nil {
+		if err != nil {
-		return err
+		return false, err
 	}
 
 	n, err := result.RowsAffected()
 	if err != nil {
 		panic(err)
 	}
-	switch n {
+
-		case 0:
+	if n > 1 {
-		return sql.ErrNoRows
-	case 1:
-		return nil
-	default:
 		panic("multiple rows deleted")
 	}
+
+	return n != 0, nil
 }
 
 {{- end}}

sqlgen/template.go

@@ -8,16 +8,16 @@ import (
 	"text/template"
 )
 
-//go:embed gen.go.tmpl
+//go:embed sqlite.go.tmpl
-var fileTemplate string
+var sqliteTemplate string
 
-func render(driver, schemaPath, outputPath string) error {
+func render(templateStr, schemaPath, outputPath string) error {
-	sch, err := parsePath(driver, schemaPath)
+	sch, err := parsePath(schemaPath)
 	if err != nil {
 		return err
 	}
 
-	tmpl := template.Must(template.New("").Parse(fileTemplate))
+	tmpl := template.Must(template.New("").Parse(templateStr))
 	fOut, err := os.Create(outputPath)
 	if err != nil {
 		return err

sqliteutil/errors.go

@@ -1,8 +0,0 @@
-package sqliteutil
-
-import "github.com/mattn/go-sqlite3"
-
-func ErrIsConstraint(err error) bool {
-	e, ok := err.(sqlite3.Error)
-	return ok && e.Code == 19
-}