Exemple #1
0
func TestSelectFirst(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	var score Score

	err := db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(2).First(&score)
	assert.NoError(t, err)
	assert.Equal(t, 2, score.Value)

	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(1).Reverse().First(&score)
	assert.NoError(t, err)
	assert.Equal(t, 18, score.Value)
}
Exemple #2
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func TestSelectFindLimitSkip(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	var scores []Score

	err := db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Limit(2).Skip(2).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 2)
	assert.Equal(t, 2, scores[0].Value)
	assert.Equal(t, 5, scores[1].Value)

	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Limit(2).Skip(5).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 1)
	assert.Equal(t, 19, scores[0].Value)
}
Exemple #3
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func TestSelectFind(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	var scores []Score
	var scoresPtr []*Score

	err := db.Select(q.Eq("Value", 5)).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 1)
	assert.Equal(t, 5, scores[0].Value)

	err = db.Select(q.Eq("Value", 5)).Find(&scoresPtr)
	assert.NoError(t, err)
	assert.Len(t, scoresPtr, 1)
	assert.Equal(t, 5, scoresPtr[0].Value)

	err = db.Select(
		q.Or(
			q.Eq("Value", 5),
			q.Eq("Value", 6),
		),
	).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 2)
	assert.Equal(t, 5, scores[0].Value)
	assert.Equal(t, 6, scores[1].Value)

	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 6)
	assert.Equal(t, 0, scores[0].Value)
	assert.Equal(t, 1, scores[1].Value)
	assert.Equal(t, 2, scores[2].Value)
	assert.Equal(t, 5, scores[3].Value)
	assert.Equal(t, 18, scores[4].Value)
	assert.Equal(t, 19, scores[5].Value)

	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Reverse().Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 6)
	assert.Equal(t, 19, scores[0].Value)
	assert.Equal(t, 18, scores[1].Value)
	assert.Equal(t, 5, scores[2].Value)
	assert.Equal(t, 2, scores[3].Value)
	assert.Equal(t, 1, scores[4].Value)
	assert.Equal(t, 0, scores[5].Value)
}
Exemple #4
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// Range returns one or more records by the specified index within the specified range
func (n *node) Range(fieldName string, min, max, to interface{}, options ...func(*index.Options)) error {
	sink, err := newListSink(n, to)
	if err != nil {
		return err
	}

	bucketName := sink.bucketName()
	if bucketName == "" {
		return ErrNoName
	}

	ref := reflect.Indirect(reflect.New(sink.elemType))
	cfg, err := extractSingleField(&ref, fieldName)
	if err != nil {
		return err
	}

	opts := index.NewOptions()
	for _, fn := range options {
		fn(opts)
	}

	field, ok := cfg.Fields[fieldName]
	if !ok || (!field.IsID && field.Index == "") {
		sink.limit = opts.Limit
		sink.skip = opts.Skip
		query := newQuery(n, q.And(q.Gte(fieldName, min), q.Lte(fieldName, max)))

		if opts.Reverse {
			query.Reverse()
		}

		err = n.readTx(func(tx *bolt.Tx) error {
			return query.query(tx, sink)
		})

		if err != nil {
			return err
		}

		return sink.flush()
	}

	mn, err := toBytes(min, n.s.codec)
	if err != nil {
		return err
	}

	mx, err := toBytes(max, n.s.codec)
	if err != nil {
		return err
	}

	return n.readTx(func(tx *bolt.Tx) error {
		return n.rnge(tx, bucketName, fieldName, cfg, sink, mn, mx, opts)
	})
}
Exemple #5
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func TestSelectCount(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	total, err := db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Count(&Score{})
	assert.NoError(t, err)
	assert.Equal(t, 6, total)

	total, err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(2).Count(&Score{})
	assert.NoError(t, err)
	assert.Equal(t, 4, total)

	total, err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(2).Limit(2).Count(&Score{})
	assert.NoError(t, err)
	assert.Equal(t, 2, total)

	total, err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(5).Limit(2).Count(&Score{})
	assert.NoError(t, err)
	assert.Equal(t, 1, total)
}
Exemple #6
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func TestSelectDelete(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	err := db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(2).Delete(&Score{})
	assert.NoError(t, err)

	var scores []Score
	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 2)
	assert.Equal(t, 0, scores[0].Value)
	assert.Equal(t, 1, scores[1].Value)

	for i := 0; i < 10; i++ {
		w := User{ID: i + 1, Name: fmt.Sprintf("John%d", i+1)}
		err = db.Save(&w)
		assert.NoError(t, err)
	}

	err = db.Select(q.Gte("ID", 5)).Delete(&User{})
	assert.NoError(t, err)

	var user User
	err = db.One("Name", "John6", &user)
	assert.Error(t, err)
	assert.Equal(t, ErrNotFound, err)

	err = db.One("Name", "John4", &user)
	assert.NoError(t, err)
}
Exemple #7
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func TestSelectFindSkip(t *testing.T) {
	db, cleanup := prepareScoreDB(t)
	defer cleanup()

	var scores []Score

	err := db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(4).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 2)
	assert.Equal(t, 18, scores[0].Value)
	assert.Equal(t, 19, scores[1].Value)

	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(-10).Find(&scores)
	assert.NoError(t, err)
	assert.Len(t, scores, 6)
	assert.Equal(t, 0, scores[0].Value)

	scores = nil
	err = db.Select(q.Or(
		q.Eq("Value", 5),
		q.Or(
			q.Lte("Value", 2),
			q.Gte("Value", 18),
		),
	)).Skip(1000).Find(&scores)
	assert.Error(t, err)
	assert.True(t, ErrNotFound == err)
	assert.Len(t, scores, 0)
}