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Add SetColumns to SelectBuilder #85

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Add SetColumns to SelectBuilder #85

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5 changes: 5 additions & 0 deletions select.go
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Original file line number Diff line number Diff line change
Expand Up @@ -218,6 +218,11 @@ func (b SelectBuilder) Columns(columns ...string) SelectBuilder {
return builder.Extend(b, "Columns", parts).(SelectBuilder)
}

// SetColumns sets the columns in the query.
func (b SelectBuilder) SetColumns(columns ...string) SelectBuilder {
return builder.Delete(b, "Columns").(SelectBuilder).Columns(columns...)
}

// Column adds a result column to the query.
// Unlike Columns, Column accepts args which will be bound to placeholders in
// the columns string, for example:
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11 changes: 11 additions & 0 deletions select_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -162,3 +162,14 @@ func TestSelectWithOptions(t *testing.T) {
assert.NoError(t, err)
assert.Equal(t, "SELECT DISTINCT SQL_NO_CACHE * FROM foo", sql)
}

func TestSetColumns(t *testing.T) {
builder := Select("blarg").From("foo")
sql, _, err := builder.ToSql()
assert.NoError(t, err)
assert.Equal(t, "SELECT blarg FROM foo", sql)

sql, _, err = builder.SetColumns("biz", "baz").ToSql()
assert.NoError(t, err)
assert.Equal(t, "SELECT biz, baz FROM foo", sql)
}