-
Notifications
You must be signed in to change notification settings - Fork 39
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Implement named args for prepared statements
- Loading branch information
1 parent
db7bade
commit 07eed8a
Showing
14 changed files
with
605 additions
and
147 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package mappings | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "regexp" | ||
| "strings" | ||
| ) | ||
|
|
||
| var ( | ||
| matchFirstCapRe = regexp.MustCompile("(.)([A-Z][a-z]+)") | ||
| matchAllCapRe = regexp.MustCompile("([a-z0-9])([A-Z])") | ||
| ) | ||
|
|
||
| type colProperties struct { | ||
| Name string | ||
| IsPK bool | ||
| IsGenerated bool | ||
| AutoIncrement bool | ||
| } | ||
|
|
||
| func getColProperties(tag string) colProperties { | ||
| var p colProperties | ||
| if tag == "" { | ||
| return p | ||
| } | ||
|
|
||
| parts := strings.Split(tag, ",") | ||
| p.Name = parts[0] | ||
|
|
||
| for _, part := range parts[1:] { | ||
| switch part { | ||
| case "pk": | ||
| p.IsPK = true | ||
| case "generated": | ||
| p.IsGenerated = true | ||
| case "autoincr": | ||
| p.AutoIncrement = true | ||
| } | ||
| } | ||
|
|
||
| return p | ||
| } | ||
|
|
||
| type Mapping struct { | ||
| All []string | ||
| PKs []string | ||
| NonPKs []string | ||
| Generated []string | ||
| NonGenerated []string | ||
| AutoIncrement []string | ||
| } | ||
|
|
||
| func GetMappings(typ reflect.Type) Mapping { | ||
| c := Mapping{} | ||
|
|
||
| if typ.Kind() == reflect.Pointer { | ||
| typ = typ.Elem() | ||
| } | ||
|
|
||
| if typ.Kind() != reflect.Struct { | ||
| return c | ||
| } | ||
|
|
||
| c.All = make([]string, typ.NumField()) | ||
| c.PKs = make([]string, typ.NumField()) | ||
| c.NonPKs = make([]string, typ.NumField()) | ||
| c.Generated = make([]string, typ.NumField()) | ||
| c.NonGenerated = make([]string, typ.NumField()) | ||
| c.AutoIncrement = make([]string, typ.NumField()) | ||
|
|
||
| // Go through the struct fields and populate the map. | ||
| // Recursively go into any child structs, adding a prefix where necessary | ||
| for i := 0; i < typ.NumField(); i++ { | ||
| field := typ.Field(i) | ||
|
|
||
| // Don't consider unexported fields | ||
| if !field.IsExported() { | ||
| continue | ||
| } | ||
|
|
||
| // Skip columns that have the tag "-" | ||
| tag := field.Tag.Get("db") | ||
| if tag == "-" { | ||
| continue | ||
| } | ||
|
|
||
| if tag == "" { | ||
| tag = snakeCase(field.Name) | ||
| } | ||
|
|
||
| props := getColProperties(tag) | ||
|
|
||
| c.All[field.Index[0]] = props.Name | ||
| if props.IsPK { | ||
| c.PKs[field.Index[0]] = props.Name | ||
| } else { | ||
| c.NonPKs[field.Index[0]] = props.Name | ||
| } | ||
| if props.IsGenerated { | ||
| c.Generated[field.Index[0]] = props.Name | ||
| } else { | ||
| c.NonGenerated[field.Index[0]] = props.Name | ||
| } | ||
| if props.AutoIncrement { | ||
| c.AutoIncrement[field.Index[0]] = props.Name | ||
| } | ||
| } | ||
|
|
||
| return c | ||
| } | ||
|
|
||
| // snakeCaseFieldFunc is a NameMapperFunc that maps struct field to snake case. | ||
| func snakeCase(str string) string { | ||
| snake := matchFirstCapRe.ReplaceAllString(str, "${1}_${2}") | ||
| snake = matchAllCapRe.ReplaceAllString(snake, "${1}_${2}") | ||
| return strings.ToLower(snake) | ||
| } |
Oops, something went wrong.