Ejemplo n.º 1
0
func TestForeignKey(t *testing.T) {
	t1 := pqt.NewTable("left")
	c11 := pqt.NewColumn("id", pqt.TypeSerialBig())
	c12 := pqt.NewColumn("name", pqt.TypeText())
	t1.AddColumn(c11)
	t1.AddColumn(c12)

	t2 := pqt.NewTable("right")
	c21 := pqt.NewColumn("id", pqt.TypeSerialBig())
	c22 := pqt.NewColumn("name", pqt.TypeText())
	t2.AddColumn(c21)
	t2.AddColumn(c22)

	cstr := pqt.ForeignKey(t1, pqt.Columns{c11, c12}, pqt.Columns{c21, c22})
	if cstr.Type != pqt.ConstraintTypeForeignKey {
		t.Errorf("wrong type, expected %s but got %s", pqt.ConstraintTypeForeignKey, cstr.Type)
	}
	if len(cstr.Columns) != 2 {
		t.Errorf("wrong number of columns, expected %d but got %d", 2, len(cstr.Columns))
	}
	if len(cstr.ReferenceColumns) != 2 {
		t.Errorf("wrong number of columns, expected %d but got %d", 2, len(cstr.ReferenceColumns))
	}
	if !reflect.DeepEqual(cstr.Table, t1) {
		t.Errorf("table does not match, expected %v but got %v", t1, cstr.Table)
	}
	if !reflect.DeepEqual(cstr.ReferenceTable, t2) {
		t.Errorf("reference table does not match, expected %v but got %v", t2, cstr.ReferenceTable)
	}
}
Ejemplo n.º 2
0
func TestTable_AddColumn(t *testing.T) {
	c0 := pqt.NewColumn("c0", pqt.TypeSerialBig(), pqt.WithPrimaryKey())
	c1 := &pqt.Column{Name: "c1"}
	c2 := &pqt.Column{Name: "c2"}
	c3 := &pqt.Column{Name: "c3"}

	tbl := pqt.NewTable("test").
		AddColumn(c0).
		AddColumn(c1).
		AddColumn(c2).
		AddColumn(c3).
		AddColumn(pqt.NewColumn("c4", pqt.TypeIntegerBig(), pqt.WithReference(c0))).
		AddRelationship(pqt.ManyToOne(pqt.SelfReference()))

	if len(tbl.Columns) != 6 {
		t.Errorf("wrong number of colums, expected %d but got %d", 6, len(tbl.Columns))
	}

	if len(tbl.OwnedRelationships) != 2 {
		// Reference is not a relationship
		t.Errorf("wrong number of owned relationships, expected %d but got %d", 2, len(tbl.OwnedRelationships))
	}

	for i, c := range tbl.Columns {
		if c.Name == "" {
			t.Errorf("column #%d table name is empty", i)
		}
		if c.Table == nil {
			t.Errorf("column #%d table nil pointer", i)
		}
	}
}
Ejemplo n.º 3
0
func TestTable_AddRelationship_oneToOneUnidirectional(t *testing.T) {
	user := pqt.NewTable("user").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey()))
	userDetail := pqt.NewTable("user_detail").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey())).
		AddRelationship(pqt.OneToOne(
			user,
			pqt.WithInversedName("user"),
			pqt.WithOwnerName("details"),
		))

	if len(user.InversedRelationships) != 0 {
		t.Fatalf("user should have 0 relationship, but has %d", len(user.InversedRelationships))
	}

	if len(userDetail.OwnedRelationships) != 1 {
		t.Fatalf("user_detail should have 1 relationship, but has %d", len(userDetail.OwnedRelationships))
	}

	if userDetail.OwnedRelationships[0].InversedName != "user" {
		t.Errorf("user_detail relationship to user should be mapped by user")
	}

	if userDetail.OwnedRelationships[0].InversedTable != user {
		t.Errorf("user_detail relationship to user should be mapped by user table")
	}

	if userDetail.OwnedRelationships[0].Type != pqt.RelationshipTypeOneToOne {
		t.Errorf("user_detail relationship to user should be %d, but is %d", pqt.RelationshipTypeOneToOne, userDetail.OwnedRelationships[0].Type)
	}
}
Ejemplo n.º 4
0
func TestWithColumnName(t *testing.T) {
	icn := "author"
	t1 := pqt.NewTable("user").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey()))
	t2 := pqt.NewTable("comment")

	t2.AddRelationship(pqt.OneToOne(t1, pqt.WithColumnName(icn)))

	if len(t1.InversedRelationships) != 0 {
		t.Fatalf("user table should have exactly 0 relationship, got %d", len(t1.InversedRelationships))
	}

	if len(t2.OwnedRelationships) != 1 {
		t.Fatalf("comment table should have exactly 1 relationship, got %d", len(t2.OwnedRelationships))
	}

	var exists bool
	for _, c := range t2.Columns {
		if c.Name == icn {
			exists = true
			break
		}
	}

	if !exists {
		t.Errorf("comment table should have column with name %s", icn)
	}
}
Ejemplo n.º 5
0
func TestColumn_DefaultOn(t *testing.T) {
	success := []struct {
		d string
		e []pqt.Event
	}{
		{
			d: "NOW()",
			e: []pqt.Event{pqt.EventUpdate},
		},
	}

	for _, data := range success {
		c := pqt.NewColumn("column", pqt.TypeTimestampTZ(), pqt.WithDefault(data.d, data.e...))

	EventLoop:
		for _, e := range data.e {
			d, ok := c.DefaultOn(e)
			if !ok {
				t.Errorf("missing default value for %s", e)
				continue EventLoop
			}

			if d != data.d {
				t.Errorf("wrong value, expected %s but got %s", data.d, d)
			}
		}
	}
}
Ejemplo n.º 6
0
func TestTable_AddRelationship_oneToOneSelfReferencing(t *testing.T) {
	user := pqt.NewTable("user").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey()))

	user.AddRelationship(pqt.OneToOne(
		pqt.SelfReference(),
		pqt.WithInversedName("child"),
		pqt.WithOwnerName("parent"),
	))

	if len(user.OwnedRelationships) != 1 {
		t.Fatalf("user should have 1 owned relationship, but has %d", len(user.OwnedRelationships))
	}

	if user.OwnedRelationships[0].OwnerName != "parent" {
		t.Errorf("user relationship to user should be mapped by parent")
	}

	if user.OwnedRelationships[0].OwnerTable != user {
		t.Errorf("user relationship to user should be mapped by user table")
	}

	if user.OwnedRelationships[0].Type != pqt.RelationshipTypeOneToOne {
		t.Errorf("user relationship to user should be %d, but is %d", pqt.RelationshipTypeOneToOne, user.OwnedRelationships[0].Type)
	}

	if len(user.InversedRelationships) != 0 {
		t.Fatalf("user should have 0 inversed relationship, but has %d", len(user.InversedRelationships))
	}
}
Ejemplo n.º 7
0
func TestTable_AddRelationship_oneToMany(t *testing.T) {
	user := pqt.NewTable("user").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey()))
	comment := pqt.NewTable("comment").AddColumn(pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey()))

	user.AddRelationship(pqt.OneToMany(
		comment,
		pqt.WithBidirectional(),
		pqt.WithInversedName("author"),
		pqt.WithOwnerName("comments"),
	))

	if len(user.InversedRelationships) != 1 {
		t.Fatalf("user should have 1 inversed relationship, but has %d", len(user.InversedRelationships))
	}

	if user.InversedRelationships[0].OwnerName != "comments" {
		t.Errorf("user inversed relationship to comment should be mapped by comments")
	}

	if user.InversedRelationships[0].OwnerTable != comment {
		t.Errorf("user inversed relationship to comment should be mapped by comment table")
	}

	if user.InversedRelationships[0].Type != pqt.RelationshipTypeOneToMany {
		t.Errorf("user inversed relationship to comment should be one to many")
	}

	if len(comment.OwnedRelationships) != 1 {
		t.Fatalf("comment should have 1 owned relationship, but has %d", len(comment.OwnedRelationships))
	}

	if comment.OwnedRelationships[0].InversedName != "author" {
		t.Errorf("comment relationship to user should be mapped by author")
	}

	if comment.OwnedRelationships[0].InversedTable != user {
		t.Errorf("comment relationship to user should be mapped by user table")
	}

	if comment.OwnedRelationships[0].Type != pqt.RelationshipTypeOneToMany {
		t.Errorf("comment relationship to user should be %d, but is %d", pqt.RelationshipTypeOneToMany, comment.OwnedRelationships[0].Type)
	}
}
Ejemplo n.º 8
0
func TestConstraint_Name(t *testing.T) {
	id := pqt.NewColumn("id", pqt.TypeSerial(), pqt.WithPrimaryKey())
	success := map[string]*pqt.Constraint{
		"public.user_id_pkey": pqt.PrimaryKey(pqt.NewTable("user"), id),
		"custom_schema.user_id_pkey": pqt.PrimaryKey(func() *pqt.Table {
			t := pqt.NewTable("user")
			s := pqt.NewSchema("custom_schema")
			s.AddTable(t)

			return t
		}(), id),
		"<missing table>": pqt.Check(nil, "a > b", id),
		"public.news_key": pqt.Unique(pqt.NewTable("news")),
	}

	for expected, given := range success {
		got := given.Name()

		if got != expected {
			t.Errorf("wrong name, expected %s got %s", expected, got)
		}
	}
}
Ejemplo n.º 9
0
func TestNewColumn(t *testing.T) {
	collate := "UTF-7"
	check := "username = 'random'"
	r := pqt.NewColumn("username", pqt.TypeText())
	c := pqt.NewColumn(
		"user_username",
		pqt.TypeText(),
		pqt.WithCollate(collate),
		pqt.WithCheck(check),
		pqt.WithDefault("janusz"),
		pqt.WithUnique(),
		pqt.WithTypeMapping(pqtgo.BuiltinType(types.Byte)),
		pqt.WithNotNull(),
		pqt.WithPrimaryKey(),
		pqt.WithReference(r),
	)

	if c.Type.String() != pqt.TypeText().String() {
		t.Errorf("wrong column type, expected %s but got %s", pqt.TypeText().String(), c.Type.String())
	}
	if c.Collate != collate {
		t.Errorf("wrong column collate, expected %s but got %s", collate, c.Collate)
	}
	if c.Check != check {
		t.Errorf("wrong column check, expected %s but got %s", check, c.Check)
	}
	if d, ok := c.Default[pqt.EventInsert]; ok && d != "janusz" {
		t.Errorf("wrong column default, expected %s but got %s", "janusz", d)
	}
	if !c.Unique {
		t.Error("wrong column unique, expected true but got false")
	}
	if !c.NotNull {
		t.Error("wrong column not null, expected true but got false")
	}
	if !c.PrimaryKey {
		t.Error("wrong column primary key, expected true but got false")
	}
	if c.Reference != r {
		t.Errorf("wrong column reference, expected %p but got %p", r, c.Reference)
	}

	constraints := c.Constraints()

	if len(constraints) != 3 {
		t.Errorf("wrong number of constraints, expected 3 but got %d", len(constraints))
	}

	var hasPK, hasFK, hasCH bool
	for _, constraint := range constraints {
		switch constraint.Type {
		case pqt.ConstraintTypePrimaryKey:
			hasPK = true
		case pqt.ConstraintTypeForeignKey:
			hasFK = true
		case pqt.ConstraintTypeCheck:
			hasCH = true
		}
	}

	if !hasPK {
		t.Errorf("mising primary key constraint")
	}
	if !hasFK {
		t.Errorf("mising foreign key constraint")
	}
	if !hasCH {
		t.Errorf("mising check constraint")
	}
}
Ejemplo n.º 10
0
func timestampable(t *pqt.Table) {
	t.AddColumn(pqt.NewColumn("created_at", pqt.TypeTimestampTZ(), pqt.WithNotNull(), pqt.WithDefault("NOW()"))).
		AddColumn(pqt.NewColumn("updated_at", pqt.TypeTimestampTZ(), pqt.WithDefault("NOW()", pqt.EventUpdate)))
}
Ejemplo n.º 11
0
func schema(sn string) *pqt.Schema {
	title := pqt.NewColumn("title", pqt.TypeText(), pqt.WithNotNull(), pqt.WithUnique())
	lead := pqt.NewColumn("lead", pqt.TypeText())

	news := pqt.NewTable("news", pqt.WithTableIfNotExists()).
		AddColumn(pqt.NewColumn("id", pqt.TypeSerialBig(), pqt.WithPrimaryKey())).
		AddColumn(title).
		AddColumn(lead).
		AddColumn(pqt.NewColumn("continue", pqt.TypeBool(), pqt.WithNotNull(), pqt.WithDefault("false"))).
		AddColumn(pqt.NewColumn("content", pqt.TypeText(), pqt.WithNotNull())).
		AddUnique(title, lead)

	comment := pqt.NewTable("comment", pqt.WithTableIfNotExists()).
		AddColumn(pqt.NewColumn("id", pqt.TypeSerialBig())).
		AddColumn(pqt.NewColumn("content", pqt.TypeText(), pqt.WithNotNull())).
		AddColumn(pqt.NewColumn(
			"news_title",
			pqt.TypeText(),
			pqt.WithNotNull(),
			pqt.WithReference(title, pqt.WithBidirectional(), pqt.WithOwnerName("comments_by_news_title"), pqt.WithInversedName("news_by_title")),
		))

	category := pqt.NewTable("category", pqt.WithTableIfNotExists()).
		AddColumn(pqt.NewColumn("id", pqt.TypeSerialBig(), pqt.WithPrimaryKey())).
		AddColumn(pqt.NewColumn("name", pqt.TypeText(), pqt.WithNotNull())).
		AddColumn(pqt.NewColumn("content", pqt.TypeText(), pqt.WithNotNull())).
		AddRelationship(
			pqt.OneToMany(
				pqt.SelfReference(),
				pqt.WithBidirectional(),
				pqt.WithInversedName("child_category"),
				pqt.WithOwnerName("parent_category"),
				pqt.WithColumnName("parent_id"),
			),
		)

	pkg := pqt.NewTable("package", pqt.WithTableIfNotExists()).
		AddColumn(pqt.NewColumn("id", pqt.TypeSerialBig(), pqt.WithPrimaryKey())).
		AddColumn(pqt.NewColumn("break", pqt.TypeText())).
		AddRelationship(pqt.ManyToOne(
			category,
			pqt.WithBidirectional(),
		))

	timestampable(news)
	timestampable(comment)
	timestampable(category)
	timestampable(pkg)
	comment.AddRelationship(pqt.ManyToOne(news, pqt.WithBidirectional(), pqt.WithInversedName("news_by_id")), pqt.WithNotNull())

	pqt.ManyToMany(category, news, pqt.WithBidirectional())

	return pqt.NewSchema(sn, pqt.WithSchemaIfNotExists()).
		AddTable(category).
		AddTable(pkg).
		AddTable(news).
		AddTable(comment)
}
Ejemplo n.º 12
0
func TestGenerator_Generate(t *testing.T) {
	success := []struct {
		expected string
		given    *pqt.Table
	}{
		{
			expected: `-- do not modify, generated by pqt

CREATE TEMPORARY TABLE schema.user (
	created_at TIMESTAMPTZ,
	password TEXT,
	username TEXT NOT NULL
);

`,
			given: func() *pqt.Table {
				return pqt.NewTable("user", pqt.WithTemporary()).
					SetSchema(pqt.NewSchema("schema")).
					AddColumn(&pqt.Column{Name: "username", Type: pqt.TypeText(), NotNull: true}).
					AddColumn(&pqt.Column{Name: "password", Type: pqt.TypeText()}).
					AddColumn(&pqt.Column{Name: "created_at", Type: pqt.TypeTimestampTZ()})
			}(),
		},
		{
			expected: `-- do not modify, generated by pqt

CREATE TABLE IF NOT EXISTS table_name (
	created_at TIMESTAMPTZ DEFAULT NOW() NOT NULL,
	created_by INTEGER NOT NULL,
	enabled BOOL,
	end_at TIMESTAMPTZ NOT NULL,
	id SERIAL,
	name TEXT,
	price DECIMAL(10,1),
	rel_id INTEGER,
	slug TEXT NOT NULL,
	start_at TIMESTAMPTZ NOT NULL,
	updated_at TIMESTAMPTZ,
	updated_by INTEGER,

	CONSTRAINT "public.table_name_id_pkey" PRIMARY KEY (id),
	CONSTRAINT "public.table_name_name_key" UNIQUE (name),
	CONSTRAINT "public.table_name_slug_key" UNIQUE (slug),
	CONSTRAINT "public.table_name_rel_id_fkey" FOREIGN KEY (rel_id) REFERENCES related_table (id),
	CONSTRAINT "public.table_name_start_at_end_at_check" CHECK ((start_at IS NULL AND end_at IS NULL) OR start_at < end_at)
);

`,
			given: func() *pqt.Table {
				id := pqt.Column{Name: "id", Type: pqt.TypeSerial()}
				startAt := &pqt.Column{Name: "start_at", Type: pqt.TypeTimestampTZ(), NotNull: true}
				endAt := &pqt.Column{Name: "end_at", Type: pqt.TypeTimestampTZ(), NotNull: true}
				_ = pqt.NewTable("related_table").
					AddColumn(&id)

				return pqt.NewTable("table_name", pqt.WithTableIfNotExists()).
					AddColumn(&pqt.Column{Name: "id", Type: pqt.TypeSerial(), PrimaryKey: true}).
					AddColumn(&pqt.Column{Name: "rel_id", Type: pqt.TypeInteger(), Reference: &id}).
					AddColumn(&pqt.Column{Name: "name", Type: pqt.TypeText(), Unique: true}).
					AddColumn(&pqt.Column{Name: "enabled", Type: pqt.TypeBool()}).
					AddColumn(&pqt.Column{Name: "price", Type: pqt.TypeDecimal(10, 1)}).
					AddColumn(startAt).
					AddColumn(endAt).
					AddColumn(pqt.NewColumn("created_at", pqt.TypeTimestampTZ(), pqt.WithNotNull(), pqt.WithDefault("NOW()"))).
					AddColumn(&pqt.Column{Name: "created_by", Type: pqt.TypeInteger(), NotNull: true}).
					AddColumn(&pqt.Column{Name: "updated_at", Type: pqt.TypeTimestampTZ()}).
					AddColumn(&pqt.Column{Name: "updated_by", Type: pqt.TypeInteger()}).
					AddColumn(&pqt.Column{Name: "slug", Type: pqt.TypeText(), NotNull: true, Unique: true}).
					AddCheck("(start_at IS NULL AND end_at IS NULL) OR start_at < end_at", startAt, endAt)
			}(),
		},
	}

	for i, data := range success {
		q, err := pqtsql.NewGenerator().Generate(&pqt.Schema{
			Tables: []*pqt.Table{data.given},
		})

		if err != nil {
			t.Errorf("unexpected error for schema #%d : %s", i, err.Error())
			continue
		}

		if string(q) != data.expected {
			t.Errorf("wrong query, expected:\n'%s'\nbut got:\n'%s'", data.expected, q)
		}
	}
}
Ejemplo n.º 13
0
func TestGenerator_Generate(t *testing.T) {
	cases := map[string]struct {
		schema    *pqt.Schema
		generator *pqtgo.Generator
		expected  string
	}{
		"basic": {
			schema: pqt.NewSchema("text"),
			generator: pqtgo.NewGenerator().
				AddImport("github.com/piotrkowalczuk/ntypes"),
			expected: `package main
import (
"github.com/go-kit/kit/log"
"github.com/m4rw3r/uuid"
"github.com/piotrkowalczuk/ntypes"
)
`,
		},
		"custom-package": {
			schema: pqt.NewSchema("text"),
			generator: pqtgo.NewGenerator().
				SetPackage("example").
				AddImport("fmt"),
			expected: `package example
import (
"github.com/go-kit/kit/log"
"github.com/m4rw3r/uuid"
"fmt"
)
`,
		},
		"simple table": {
			schema: pqt.NewSchema("text").AddTable(
				pqt.NewTable("first").AddColumn(
					pqt.NewColumn("id", pqt.TypeSerialBig()),
				).AddColumn(
					pqt.NewColumn("name", pqt.TypeText()),
				),
			),
			generator: pqtgo.NewGenerator().
				SetPackage("custom"),
			expected: `package custom
import (
"github.com/go-kit/kit/log"
"github.com/m4rw3r/uuid"
)
const (
tableFirst = "text.first"
	tableFirstColumnId = "id"
		tableFirstColumnName = "name"
		)
var (
tableFirstColumns = []string{
tableFirstColumnId,
tableFirstColumnName,
})
type firstEntity struct{
// id ...
id *ntypes.Int64
// name ...
name *ntypes.String
}

func (e *firstEntity) prop(cn string) (interface{}, bool) {
switch cn {
case tableFirstColumnId:
return &e.id, true
case tableFirstColumnName:
return &e.name, true
default:
return nil, false
}
}
func (e *firstEntity) props(cns ...string) ([]interface{}, error) {

		res := make([]interface{}, 0, len(cns))
		for _, cn := range cns {
			if prop, ok := e.prop(cn); ok {
				res = append(res, prop)
			} else {
				return nil, fmt.Errorf("unexpected column provided: %s", cn)
			}
		}
		return res, nil
}


// firstIterator is not thread safe.
type firstIterator struct {
	rows *sql.Rows
	cols []string
}

func (i *firstIterator) Next() bool {
	return i.rows.Next()
}

func (i *firstIterator) Close() error {
	return i.rows.Close()
}

func (i *firstIterator) Err() error {
	return i.rows.Err()
}

// Columns is wrapper around sql.Rows.Columns method, that also cache outpu inside iterator.
func (i *firstIterator) Columns() ([]string, error) {
	if i.cols == nil {
		cols, err := i.rows.Columns()
		if err != nil {
			return nil, err
		}
		i.cols = cols
	}
	return i.cols, nil
}

// Ent is wrapper around first method that makes iterator more generic.
func (i *firstIterator) Ent() (interface{}, error) {
	return i.First()
}

func (i *firstIterator) First() (*firstEntity, error) {
	var ent firstEntity
	cols, err := i.rows.Columns()
	if err != nil {
		return nil, err
	}

	props, err := ent.props(cols...)
	if err != nil {
		return nil, err
	}
	if err := i.rows.Scan(props...); err != nil {
		return nil, err
	}
	return &ent, nil
}
type firstCriteria struct {
offset, limit int64
sort map[string]bool
id *qtypes.Int64
name *qtypes.String
}

func (c *firstCriteria) WriteComposition(sel string, com *pqtgo.Composer, opt *pqtgo.CompositionOpts) (err error) {
	
		if err = pqtgo.WriteCompositionQueryInt64(c.id, tableFirstColumnId, com, pqtgo.And); err != nil {
			return
		}

		if err = pqtgo.WriteCompositionQueryString(c.name, tableFirstColumnName, com, pqtgo.And); err != nil {
			return
		}

	if len(c.sort) > 0 {
		i:=0
		com.WriteString(" ORDER BY ")

		for cn, asc := range c.sort {
			for _, tcn := range tableFirstColumns {
				if cn == tcn {
					if i > 0 {
						com.WriteString(", ")
					}
					com.WriteString(cn)
					if !asc {
						com.WriteString(" DESC ")
					}
					i++
					break
				}
			}
		}
	}
	if c.offset > 0 {
		if _, err = com.WriteString(" OFFSET "); err != nil {
			return
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		if _, err = com.WriteString(" "); err != nil {
			return
		}
		com.Add(c.offset)
	}
	if c.limit > 0 {
		if _, err = com.WriteString(" LIMIT "); err != nil {
			return
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		if _, err = com.WriteString(" "); err != nil {
			return
		}
		com.Add(c.limit)
	}

	return
}
type firstPatch struct {
id *ntypes.Int64
name *ntypes.String
}


		type firstRepositoryBase struct {
			table string
			columns []string
			db *sql.DB
			dbg bool
			log log.Logger
		}
	func scanFirstRows(rows *sql.Rows) ([]*firstEntity, error) {
	var (
		entities []*firstEntity
		err error
	)
	for rows.Next() {
		var ent firstEntity
		err = rows.Scan(
	&ent.id,
&ent.name,
)
			if err != nil {
				return nil, err
			}

			entities = append(entities, &ent)
		}
		if rows.Err() != nil {
			return nil, rows.Err()
		}

		return entities, nil
	}

	func (r *firstRepositoryBase) count(c *firstCriteria) (int64, error) {

	com := pqtgo.NewComposer(2)
	buf := bytes.NewBufferString("SELECT COUNT(*) FROM ")
	buf.WriteString(r.table)

	if err := c.WriteComposition("", com, pqtgo.And); err != nil {
		return 0, err
	}
	if com.Dirty {
		buf.WriteString(" WHERE ")
	}
	if com.Len() > 0 {
		buf.ReadFrom(com)
	}

	if r.dbg {
		if err := r.log.Log("msg", buf.String(), "function", "Count"); err != nil {
			return 0, err
		}
	}

	var count int64
	if err := r.db.QueryRow(buf.String(), com.Args()...).Scan(&count); err != nil {
		return 0, err
	}
	return count, nil
}

func (r *firstRepositoryBase) find(c *firstCriteria) ([]*firstEntity, error) {

	com := pqtgo.NewComposer(1)
	buf := bytes.NewBufferString("SELECT ")
	buf.WriteString(strings.Join(r.columns, ", "))
	buf.WriteString(" FROM ")
	buf.WriteString(r.table)
	buf.WriteString(" ")

	if err := c.WriteComposition("", com, pqtgo.And); err != nil {
		return nil, err
	}
	if com.Dirty {
		buf.WriteString(" WHERE ")
	}
	if com.Len() > 0 {
		buf.ReadFrom(com)
	}

	if r.dbg {
		if err := r.log.Log("msg", buf.String(), "function", "Find"); err != nil {
			return nil, err
		}
	}

	rows, err := r.db.Query(buf.String(), com.Args()...)
	if err != nil {
		return nil, err
	}

	defer rows.Close()

	return scanFirstRows(rows)
}
func (r *firstRepositoryBase) findIter(c *firstCriteria) (*firstIterator, error) {

	com := pqtgo.NewComposer(1)
	buf := bytes.NewBufferString("SELECT ")
	buf.WriteString(strings.Join(r.columns, ", "))
	buf.WriteString(" FROM ")
	buf.WriteString(r.table)
	buf.WriteString(" ")

	if err := c.WriteComposition("", com, pqtgo.And); err != nil {
		return nil, err
	}
	if com.Dirty {
		buf.WriteString(" WHERE ")
	}
	if com.Len() > 0 {
		buf.ReadFrom(com)
	}

	if r.dbg {
		if err := r.log.Log("msg", buf.String(), "function", "Find"); err != nil {
			return nil, err
		}
	}

	rows, err := r.db.Query(buf.String(), com.Args()...)
	if err != nil {
		return nil, err
	}


	return &firstIterator{rows: rows}, nil
}
func (r *firstRepositoryBase) insert(e *firstEntity) (*firstEntity, error) {
		insert := pqcomp.New(0, 2)
	insert.AddExpr(tableFirstColumnName, "", e.name)

		b := bytes.NewBufferString("INSERT INTO " + r.table)

		if insert.Len() != 0 {
			b.WriteString(" (")
			for insert.Next() {
				if !insert.First() {
					b.WriteString(", ")
				}

				fmt.Fprintf(b, "%s", insert.Key())
			}
			insert.Reset()
			b.WriteString(") VALUES (")
			for insert.Next() {
				if !insert.First() {
					b.WriteString(", ")
				}

				fmt.Fprintf(b, "%s", insert.PlaceHolder())
			}
			b.WriteString(")")
			if len(r.columns) > 0 {
				b.WriteString(" RETURNING ")
				b.WriteString(strings.Join(r.columns, ", "))
			}
		}

		if r.dbg {
			if err := r.log.Log("msg", b.String(), "function", "Insert"); err != nil {
				return nil, err
			}
		}

		err := r.db.QueryRow(b.String(), insert.Args()...).Scan(
	&e.id,
&e.name,
)
		if err != nil {
			return nil, err
		}

		return e, nil
	}
func (r *firstRepositoryBase) upsert(e *firstEntity, p *firstPatch, inf ...string) (*firstEntity, error) {
		insert := pqcomp.New(0, 2)
		update := insert.Compose(2)
	insert.AddExpr(tableFirstColumnName, "", e.name)
if len(inf) > 0 {
update.AddExpr(tableFirstColumnName, "=", p.name)
}

		b := bytes.NewBufferString("INSERT INTO " + r.table)

		if insert.Len() > 0 {
			b.WriteString(" (")
			for insert.Next() {
				if !insert.First() {
					b.WriteString(", ")
				}

				fmt.Fprintf(b, "%s", insert.Key())
			}
			insert.Reset()
			b.WriteString(") VALUES (")
			for insert.Next() {
				if !insert.First() {
					b.WriteString(", ")
				}

				fmt.Fprintf(b, "%s", insert.PlaceHolder())
			}
			b.WriteString(")")
		}
		b.WriteString(" ON CONFLICT ")
		if len(inf) > 0 && update.Len() > 0 {
			b.WriteString(" (")
			for j, i := range inf {
				if j != 0 {
					b.WriteString(", ")
				}
				b.WriteString(i)
			}
			b.WriteString(") ")
			b.WriteString(" DO UPDATE SET ")
			for update.Next() {
				if !update.First() {
					b.WriteString(", ")
				}

				b.WriteString(update.Key())
				b.WriteString(" ")
				b.WriteString(update.Oper())
				b.WriteString(" ")
				b.WriteString(update.PlaceHolder())
			}
		} else {
			b.WriteString(" DO NOTHING ")
		}
		if insert.Len() > 0 {
			if len(r.columns) > 0 {
				b.WriteString(" RETURNING ")
				b.WriteString(strings.Join(r.columns, ", "))
			}
		}

		if r.dbg {
			if err := r.log.Log("msg", b.String(), "function", "Upsert"); err != nil {
				return nil, err
			}
		}

		err := r.db.QueryRow(b.String(), insert.Args()...).Scan(
	&e.id,
&e.name,
)
		if err != nil {
			return nil, err
		}

		return e, nil
	}
`,
		},
	}

	for hint, c := range cases {
		b, err := c.generator.Generate(c.schema)
		if err != nil {
			t.Errorf("%s: unexpected error: %s", hint, err.Error())
			continue
		}
		assertGoCode(t, c.expected, string(b), hint)
	}
}