新增 resx 包剩余实现:字段/查询字段/脱敏/变更行等类型及测试
res_field.go/res_field_option.go(字段定义)、res_query_field.go/res_query_field_option.go(查询字段)、res_change_row.go(变更行)、res_mask_field.go(字段脱敏标记)及对应测试文件,配合此前已提交的 resource.go/res_interceptor.go 组成完整的 resx 资源实现包。
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package resx
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"git.fsdpf.net/go/db"
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"git.fsdpf.net/go/db/schema"
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"git.fsdpf.net/go/req"
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"github.com/spf13/cast"
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)
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// ResField 是 req.ResField 的具体实现，也是 QueryField 的底子（QueryField 匿名嵌入它）。
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// 原来放在 contracts-v2/base，这里搬过来是因为 resx 自己（MaskField 的懒解析、QueryField.ToSql
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// 的字段级脱敏判断）需要用到它，而 resx 不能反过来 import contracts/base（contracts/base 依赖
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// contracts 根包，根包又依赖 resx，会成环）。contracts-v2/base.ResField 现在是指向这里的类型
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// 别名，兼容原有引用。
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//
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// 字段全部私有，只能通过 NewResField(opts...) + FieldWith* 构造——避免调用方绕开
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// GetRoles()/ToValue() 等方法直接摆弄底层数据。JSON 序列化/反序列化（资源缓存从数据库
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// JSON_ARRAYAGG 结果里加载字段配置，见 framework-v2 的 init_res_cache.go）靠手写的
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// MarshalJSON/UnmarshalJSON 维持原来的 wire 格式，不依赖 encoding/json 对导出字段的默认反射。
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type ResField struct {
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uuid string
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name string
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code string
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codeResource string
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dataType req.ResDataType
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length string
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comment string
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defaultValue string
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virtual bool
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virtualExpr string
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// roles 配置了"能读写该字段真实值"的角色列表，为空表示不限制。见 req.ResField.GetRoles 注释。
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roles []string
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}
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// NewResField 创建一个 ResField。code/codeResource 是必填的位置参数（每一个字段都要设置，不适合
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// 当可选项）；name 不显式用 FieldWithName 设置的话默认等于 code，uuid 不显式用 FieldWithUuid 设置
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// 的话默认是 codeResource+code——这两个字段在测试和一些一次性计算字段的场景里经常不关心具体取值，
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// 只是不能为空，给个确定性的默认值省得每次都要传。dataType 放进 FieldWithDataType 而不是位置参数：
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// 很多调用点（临时拼一个查询字段、只关心 Code/CodeResource）并不知道或不关心具体数据类型，当位置
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// 参数的话每次都要传个占位值，不如做成可选项。FieldWith* 选项定义在 res_field_option.go。
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func NewResField(code, codeResource string, opts ...ResFieldOption) req.ResField {
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f := ResField{
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code: code,
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codeResource: codeResource,
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name: code,
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uuid: codeResource + code,
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}
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for _, opt := range opts {
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opt(&f)
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}
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return f
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}
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func (this ResField) ToStructField(tags ...string) reflect.StructField {
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var typ reflect.Type
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fCode := this.code
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fTag := `db:"` + fCode + `" json:"` + fCode + `"`
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if len(tags) > 0 {
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fTag = strings.Join(tags, " ") + " " + fTag
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}
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switch this.dataType {
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case req.ResString, req.ResText, req.ResEnum,
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req.ResTimestamp, req.ResDate, req.ResDatetime:
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typ = reflect.TypeOf(string(""))
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case req.ResInteger, req.ResSmallInteger:
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typ = reflect.TypeOf(int64(0))
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case req.ResDecimal:
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typ = reflect.TypeOf(float64(0))
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case req.ResBoolean:
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typ = reflect.TypeOf(true)
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case req.ResJson:
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if this.defaultValue != "" && this.defaultValue[0:1] == "[" {
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typ = reflect.TypeOf([]any{})
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} else {
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typ = reflect.TypeOf(map[string]any{})
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}
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case req.ResVector:
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typ = reflect.TypeOf([]float64{})
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}
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return reflect.StructField{
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Name: strings.ToUpper(fCode[:1]) + fCode[1:],
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Tag: reflect.StructTag(fTag),
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Type: typ,
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}
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}
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func (this ResField) IsVirtual() bool {
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return this.virtual
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}
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func (this ResField) GetRoles() []string {
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return this.roles
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}
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func (this ResField) GetUuid() string {
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return this.uuid
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}
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func (this ResField) GetCode() string {
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return this.code
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}
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func (this ResField) GetCodeResource() string {
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return this.codeResource
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}
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func (this ResField) GetName() string {
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return this.name
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}
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func (this ResField) GetDataType() req.ResDataType {
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return this.dataType
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}
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func (this ResField) GetLength() string {
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return this.length
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}
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func (this ResField) GetComment() string {
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return this.comment
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}
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func (this ResField) GetDefault() string {
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return this.defaultValue
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}
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func (this ResField) GetVirtualExpr() string {
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return this.virtualExpr
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}
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func (this ResField) GetQueryDataType() req.RouteParamType {
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switch this.GetDataType() {
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case req.ResEnum,
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req.ResTimestamp, req.ResDate,
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req.ResDatetime, req.ResString,
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req.ResText:
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return req.ReqString
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case req.ResInteger, req.ResSmallInteger:
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return req.ReqInteger
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case req.ResDecimal:
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return req.ReqFloat
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case req.ResBoolean:
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return req.ReqBool
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case req.ResJson:
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if this.defaultValue != "" && this.defaultValue[0:1] == "[" {
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return req.ReqArray
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}
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return req.ReqJson
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case req.ResVector:
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return req.ReqArray
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}
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return req.ReqString
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}
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func (this ResField) ToValue(v any) any {
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if this.dataType == req.ResJson {
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if v == nil {
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if this.defaultValue != "" && this.defaultValue[0:1] == "[" {
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return db.V("[]")
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} else if this.defaultValue != "" && this.defaultValue[0:1] == "{" {
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return db.V("{}")
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} else if this.defaultValue == "" {
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return db.V("{}")
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}
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return this.GetRawDefault()
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}
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if str, ok := v.(string); ok {
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return str
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} else if raw, ok := v.(db.Expression); ok {
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return raw
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} else if b, err := json.Marshal(v); err == nil {
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return string(b)
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} else {
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panic(fmt.Sprintf("%s, 类型转换错误, %s", this.code, err))
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}
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}
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if this.dataType == req.ResVector {
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if v == nil {
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return db.V(nil)
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}
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var parts []string
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switch floats := v.(type) {
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case []float32:
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parts = make([]string, len(floats))
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for i, f := range floats {
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parts[i] = strconv.FormatFloat(float64(f), 'g', -1, 32)
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}
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case []float64:
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parts = make([]string, len(floats))
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for i, f := range floats {
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parts[i] = strconv.FormatFloat(f, 'g', -1, 64)
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}
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default:
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return v
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}
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return db.L("[" + strings.Join(parts, ", ") + "]")
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}
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return v
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}
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func (this ResField) GetRawDefault() db.Expression {
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if this.dataType == req.ResJson {
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if this.defaultValue != "" && this.defaultValue[0:1] == "[" {
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return db.V("[]")
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} else if this.defaultValue != "" && this.defaultValue[0:1] == "{" {
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return db.V("{}")
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} else if this.defaultValue == "" {
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return db.V("{}")
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}
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} else if this.dataType == req.ResBoolean {
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if v, _ := strconv.ParseBool(this.defaultValue); v {
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return db.V(true)
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}
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return db.V(false)
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}
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if len(this.defaultValue) > 4 && strings.ToLower(this.defaultValue[0:4]) == "sql:" {
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return db.L(this.defaultValue[4:])
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}
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if this.defaultValue == "" {
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if this.GetDataType() == req.ResDate || this.GetDataType() == req.ResDatetime {
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return db.V(nil)
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}
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return db.V("")
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}
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if strings.ToUpper(this.defaultValue) == "CURRENT_TIMESTAMP" {
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return db.L(this.defaultValue)
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}
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return db.V(this.defaultValue)
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}
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func (this ResField) ToBlueprint(table *schema.Blueprint) (temp *schema.ColumnDefinition) {
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switch this.code {
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case "id":
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return table.BigIncrements("id").AutoIncrement().Comment("ID")
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case "enabled":
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return table.Boolean("enabled").Default("1").Comment("是否有效")
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case "created_user":
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return table.Char("created_user", 36).Default("00000000-0000-0000-0000-000000000000").Comment("创建者")
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case "owned_user":
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return table.Char("owned_user", 36).Default("00000000-0000-0000-0000-000000000000").Comment("拥有者")
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case "created_at":
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return table.Timestamp("created_at").UseCurrent().Comment("创建时间")
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case "updated_at":
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return table.Timestamp("updated_at").UseCurrent().Default(db.L("ON UPDATE CURRENT_TIMESTAMP")).Comment("更新时间")
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case "deleted_at":
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return table.DateTime("deleted_at").Nullable().Comment("删除时间")
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}
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isNull := false
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comment := this.name
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def := any(this.defaultValue)
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if this.comment != "" {
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comment += " [ " + strings.Trim(this.comment, `' "`) + " ]"
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}
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switch this.dataType {
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case "string":
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len := 255
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if v, err := strconv.Atoi(strings.Trim(this.length, `' "`)); err == nil {
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len = v
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}
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temp = table.String(this.code, len)
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case "smallInteger":
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// integer 默认长度 4
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temp = table.SmallInteger(this.code)
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case "boolean":
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// integer 默认长度 1
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temp = table.Boolean(this.code)
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case "integer":
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// integer 默认长度 11
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temp = table.Integer(this.code)
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case "date", "dateTime", "timestamp":
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if this.dataType == "date" {
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temp = table.Date(this.code)
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} else {
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temp = table.DateTime(this.code)
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}
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if strings.ToUpper(this.defaultValue) == "SQL:CURRENT_TIMESTAMP" {
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def = db.L("CURRENT_TIMESTAMP")
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} else if def == "" {
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isNull = true
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}
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case "decimal":
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allowed := strings.SplitN(this.length, ",", 2)
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total := 8
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places := 2
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if v, err := strconv.Atoi(strings.Trim(allowed[0], `' "`)); err == nil {
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total = v
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}
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if v, err := strconv.Atoi(strings.Trim(allowed[1], `' "`)); err == nil {
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places = v
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}
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temp = table.Decimal(this.code, total, places)
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case "enum":
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allowed := []string{}
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for _, v := range strings.Split(this.length, ",") {
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allowed = append(allowed, strings.Trim(v, `' "`))
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}
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temp = table.Enum(this.code, allowed)
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case "json":
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temp = table.Json(this.code)
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isNull = true
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case "text":
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temp = table.Text(this.code)
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isNull = true
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case "vector":
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temp = table.Vector(this.code, cast.ToInt(this.length))
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isNull = false
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default:
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panic(fmt.Sprintf("Unknown type: %s", this.dataType))
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}
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if this.IsVirtual() {
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temp.VirtualAs(this.virtualExpr)
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}
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if isNull {
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temp.Nullable()
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} else {
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temp.Default(def)
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}
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temp.Comment(comment)
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return temp
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}
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func (this ResField) ToQueryField(t req.RouteParamType, alias string, options byte) req.QueryField {
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o := &QueryField{
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ResField: this,
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typ: t,
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alias: alias,
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}
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return o.SetOptions(options)
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}
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