diff options
Diffstat (limited to 'vendor/github.com/lib/pq/hstore/hstore.go')
-rw-r--r-- | vendor/github.com/lib/pq/hstore/hstore.go | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/vendor/github.com/lib/pq/hstore/hstore.go b/vendor/github.com/lib/pq/hstore/hstore.go deleted file mode 100644 index f1470db14..000000000 --- a/vendor/github.com/lib/pq/hstore/hstore.go +++ /dev/null @@ -1,118 +0,0 @@ -package hstore - -import ( - "database/sql" - "database/sql/driver" - "strings" -) - -// Hstore is a wrapper for transferring Hstore values back and forth easily. -type Hstore struct { - Map map[string]sql.NullString -} - -// escapes and quotes hstore keys/values -// s should be a sql.NullString or string -func hQuote(s interface{}) string { - var str string - switch v := s.(type) { - case sql.NullString: - if !v.Valid { - return "NULL" - } - str = v.String - case string: - str = v - default: - panic("not a string or sql.NullString") - } - - str = strings.Replace(str, "\\", "\\\\", -1) - return `"` + strings.Replace(str, "\"", "\\\"", -1) + `"` -} - -// Scan implements the Scanner interface. -// -// Note h.Map is reallocated before the scan to clear existing values. If the -// hstore column's database value is NULL, then h.Map is set to nil instead. -func (h *Hstore) Scan(value interface{}) error { - if value == nil { - h.Map = nil - return nil - } - h.Map = make(map[string]sql.NullString) - var b byte - pair := [][]byte{{}, {}} - pi := 0 - inQuote := false - didQuote := false - sawSlash := false - bindex := 0 - for bindex, b = range value.([]byte) { - if sawSlash { - pair[pi] = append(pair[pi], b) - sawSlash = false - continue - } - - switch b { - case '\\': - sawSlash = true - continue - case '"': - inQuote = !inQuote - if !didQuote { - didQuote = true - } - continue - default: - if !inQuote { - switch b { - case ' ', '\t', '\n', '\r': - continue - case '=': - continue - case '>': - pi = 1 - didQuote = false - continue - case ',': - s := string(pair[1]) - if !didQuote && len(s) == 4 && strings.ToLower(s) == "null" { - h.Map[string(pair[0])] = sql.NullString{String: "", Valid: false} - } else { - h.Map[string(pair[0])] = sql.NullString{String: string(pair[1]), Valid: true} - } - pair[0] = []byte{} - pair[1] = []byte{} - pi = 0 - continue - } - } - } - pair[pi] = append(pair[pi], b) - } - if bindex > 0 { - s := string(pair[1]) - if !didQuote && len(s) == 4 && strings.ToLower(s) == "null" { - h.Map[string(pair[0])] = sql.NullString{String: "", Valid: false} - } else { - h.Map[string(pair[0])] = sql.NullString{String: string(pair[1]), Valid: true} - } - } - return nil -} - -// Value implements the driver Valuer interface. Note if h.Map is nil, the -// database column value will be set to NULL. -func (h Hstore) Value() (driver.Value, error) { - if h.Map == nil { - return nil, nil - } - parts := []string{} - for key, val := range h.Map { - thispart := hQuote(key) + "=>" + hQuote(val) - parts = append(parts, thispart) - } - return []byte(strings.Join(parts, ",")), nil -} |