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)
}
func generateBaseType(t pqt.Type, m int32) string {
switch t {
case pqt.TypeText():
return chooseType("string", "*ntypes.String", "*qtypes.String", m)
case pqt.TypeBool():
return chooseType("bool", "*ntypes.Bool", "*ntypes.Bool", m)
case pqt.TypeIntegerSmall():
return chooseType("int16", "*int16", "*int16", m)
case pqt.TypeInteger():
return chooseType("int32", "*ntypes.Int32", "*ntypes.Int32", m)
case pqt.TypeIntegerBig():
return chooseType("int64", "*ntypes.Int64", "*qtypes.Int64", m)
case pqt.TypeSerial():
return chooseType("int32", "*ntypes.Int32", "*ntypes.Int32", m)
case pqt.TypeSerialSmall():
return chooseType("int16", "*int16", "*int16", m)
case pqt.TypeSerialBig():
return chooseType("int64", "*ntypes.Int64", "*qtypes.Int64", m)
case pqt.TypeTimestamp(), pqt.TypeTimestampTZ():
return chooseType("time.Time", "*time.Time", "*qtypes.Timestamp", m)
case pqt.TypeReal():
return chooseType("float32", "*ntypes.Float32", "*ntypes.Float32", m)
case pqt.TypeDoublePrecision():
return chooseType("float64", "*ntypes.Float64", "*qtypes.Float64", m)
case pqt.TypeBytea(), pqt.TypeJSON(), pqt.TypeJSONB():
return "[]byte"
case pqt.TypeUUID():
return "uuid.UUID"
default:
gt := t.String()
switch {
case strings.HasPrefix(gt, "SMALLINT["):
return chooseType("pqt.ArrayInt64", "pqt.ArrayInt64", "*qtypes.Int64", m)
case strings.HasPrefix(gt, "INTEGER["):
return chooseType("pqt.ArrayInt64", "pqt.ArrayInt64", "*qtypes.Int64", m)
case strings.HasPrefix(gt, "BIGINT["):
return chooseType("pqt.ArrayInt64", "pqt.ArrayInt64", "*qtypes.Int64", m)
case strings.HasPrefix(gt, "DOUBLE PRECISION["):
return chooseType("pqt.ArrayFloat64", "pqt.ArrayFloat64", "*qtypes.Float64", m)
case strings.HasPrefix(gt, "TEXT["):
return "pqt.ArrayString"
case strings.HasPrefix(gt, "DECIMAL"), strings.HasPrefix(gt, "NUMERIC"):
return chooseType("float64", "*ntypes.Float64", "*qtypes.Float64", m)
case strings.HasPrefix(gt, "VARCHAR"):
return chooseType("string", "*ntypes.String", "*qtypes.String", m)
default:
return "interface{}"
}
}
}
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)
}
}
}