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* feat: field tag * feat: rm new field * feat: test * feat: sort tag * feat: support comment tag and default tag for primary key * feat: comment tag test
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| package field | ||
|
|
||
| import ( | ||
| "sort" | ||
| "strings" | ||
| ) | ||
|
|
||
| const ( | ||
| TagKeyGorm = "gorm" | ||
| TagKeyJson = "json" | ||
|
|
||
| //gorm tag | ||
| TagKeyGormColumn = "column" | ||
| TagKeyGormType = "type" | ||
| TagKeyGormPrimaryKey = "primaryKey" | ||
| TagKeyGormAutoIncrement = "autoIncrement" | ||
| TagKeyGormNotNull = "not null" | ||
| TagKeyGormUniqueIndex = "uniqueIndex" | ||
| TagKeyGormIndex = "index" | ||
| TagKeyGormDefault = "default" | ||
| TagKeyGormComment = "comment" | ||
| ) | ||
|
|
||
| var ( | ||
| tagKeyPriorities = map[string]int16{ | ||
| TagKeyGorm: 100, | ||
| TagKeyJson: 99, | ||
|
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| TagKeyGormColumn: 10, | ||
| TagKeyGormType: 9, | ||
| TagKeyGormPrimaryKey: 8, | ||
| TagKeyGormAutoIncrement: 7, | ||
| TagKeyGormNotNull: 6, | ||
| TagKeyGormUniqueIndex: 5, | ||
| TagKeyGormIndex: 4, | ||
| TagKeyGormDefault: 3, | ||
| TagKeyGormComment: 0, | ||
| } | ||
| ) | ||
|
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| type TagBuilder interface { | ||
| Build() string | ||
| } | ||
|
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| type Tag map[string]string | ||
|
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| func NewTag() Tag { | ||
| return Tag{} | ||
| } | ||
|
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| func (tag Tag) Set(key, value string) { | ||
| tag[key] = value | ||
| } | ||
|
|
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| func (tag Tag) Remove(key string) { | ||
| delete(tag, key) | ||
| } | ||
|
|
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| func (tag Tag) Build() string { | ||
| if tag == nil || len(tag) == 0 { | ||
| return "" | ||
| } | ||
|
|
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| tags := make([]string, 0, len(tag)) | ||
| keys := tagKeySort(tag) | ||
| for _, k := range keys { | ||
| v := tag[k] | ||
| if k == "" || v == "" { | ||
| continue | ||
| } | ||
| tags = append(tags, k+":\""+v+"\"") | ||
| } | ||
| return strings.Join(tags, " ") | ||
| } | ||
|
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| type GormTag Tag | ||
|
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| func NewGormTag() GormTag { | ||
| return GormTag{} | ||
| } | ||
|
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| func (tag GormTag) Set(key, value string) { | ||
| tag[key] = value | ||
| } | ||
|
|
||
| func (tag GormTag) Remove(key string) { | ||
| delete(tag, key) | ||
| } | ||
|
|
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| func (tag GormTag) Build() string { | ||
| if tag == nil || len(tag) == 0 { | ||
| return "" | ||
| } | ||
| tags := make([]string, 0, len(tag)) | ||
| keys := tagKeySort(Tag(tag)) | ||
| for _, k := range keys { | ||
| v := tag[k] | ||
| if k == "" && v == "" { | ||
| continue | ||
| } | ||
| tv := make([]string, 0, 2) | ||
| if k != "" { | ||
| tv = append(tv, k) | ||
| } | ||
| if v != "" { | ||
| tv = append(tv, v) | ||
| } | ||
| tags = append(tags, strings.Join(tv, ":")) | ||
| } | ||
|
|
||
| return strings.Join(tags, ";") | ||
| } | ||
|
|
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| func tagKeySort(tag Tag) []string { | ||
| keys := make([]string, 0, len(tag)) | ||
| if len(tag) == 0 { | ||
| return keys | ||
| } | ||
| for k, _ := range tag { | ||
| keys = append(keys, k) | ||
| } | ||
| sort.Slice(keys, func(i, j int) bool { | ||
| if tagKeyPriorities[keys[i]] == tagKeyPriorities[keys[j]] { | ||
| return keys[i] <= keys[j] | ||
| } | ||
| return tagKeyPriorities[keys[i]] > tagKeyPriorities[keys[j]] | ||
| }) | ||
| return keys | ||
| } |
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