ConvertSliceOfMapToValuesForCreate convert slice of map to values
(stmt *gorm.Statement, mapValues []map[string]interface{})
| 41 | |
| 42 | // ConvertSliceOfMapToValuesForCreate convert slice of map to values |
| 43 | func ConvertSliceOfMapToValuesForCreate(stmt *gorm.Statement, mapValues []map[string]interface{}) (values clause.Values) { |
| 44 | columns := make([]string, 0, len(mapValues)) |
| 45 | |
| 46 | // when the length of mapValues is zero,return directly here |
| 47 | // no need to call stmt.SelectAndOmitColumns method |
| 48 | if len(mapValues) == 0 { |
| 49 | stmt.AddError(gorm.ErrEmptySlice) |
| 50 | return |
| 51 | } |
| 52 | |
| 53 | var ( |
| 54 | result = make(map[string][]interface{}, len(mapValues)) |
| 55 | selectColumns, restricted = stmt.SelectAndOmitColumns(true, false) |
| 56 | ) |
| 57 | |
| 58 | for idx, mapValue := range mapValues { |
| 59 | for k, v := range mapValue { |
| 60 | if stmt.Schema != nil { |
| 61 | if field := stmt.Schema.LookUpField(k); field != nil { |
| 62 | k = field.DBName |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | if _, ok := result[k]; !ok { |
| 67 | if v, ok := selectColumns[k]; (ok && v) || (!ok && !restricted) { |
| 68 | result[k] = make([]interface{}, len(mapValues)) |
| 69 | columns = append(columns, k) |
| 70 | } else { |
| 71 | continue |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | result[k][idx] = v |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | sort.Strings(columns) |
| 80 | values.Values = make([][]interface{}, len(mapValues)) |
| 81 | values.Columns = make([]clause.Column, len(columns)) |
| 82 | for idx, column := range columns { |
| 83 | values.Columns[idx] = clause.Column{Name: column} |
| 84 | |
| 85 | for i, v := range result[column] { |
| 86 | if len(values.Values[i]) == 0 { |
| 87 | values.Values[i] = make([]interface{}, len(columns)) |
| 88 | } |
| 89 | |
| 90 | values.Values[i][idx] = v |
| 91 | } |
| 92 | } |
| 93 | return |
| 94 | } |
| 95 | |
| 96 | func hasReturning(tx *gorm.DB, supportReturning bool) (bool, gorm.ScanMode) { |
| 97 | if supportReturning { |