88 lines
2.7 KiB
Go
88 lines
2.7 KiB
Go
package base
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import (
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"git.fsdpf.net/go/contracts"
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"git.fsdpf.net/go/req"
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)
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type ResRelation struct {
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Uuid string `db:"uuid"`
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CategoryUuid string `db:"category_uuid"` // 所属 UUID
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Name string `db:"name"` // 关联名称
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Code string `db:"code"` // 关联标识
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Type string `db:"type"` // 关联类型
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ResourceCode string `db:"actuallyResource"` // 实际资源资源
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RelationForeignKey string `db:"actuallyField"` // 实际资源资源字段
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RelationResource string `db:"relationResource"` // 被关联的资源
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RelationField string `db:"relationField"` // 被关联的字段
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UpdatedAt string `db:"updated_at"`
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CreatedAt string `db:"created_at"`
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}
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type GetResRelations func(categoryUuid string) []ResRelation
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type GetOrmJoinsByResRelations func(root string, items []ResRelation) []contracts.Join
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// 获取被关联对象的资源
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type GetResRelationResource func(r ResRelation) (req.Resource, bool)
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// 资源关联依赖
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func GetJoinResDependencies(root string, items []ResRelation) (dependencies []string) {
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dependencies = []string{root}
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for {
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done := true
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for _, item := range items {
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if item.Type != "inner" && item.Type != "left" && item.Type != "right" {
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continue
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}
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if dependencies[len(dependencies)-1] == item.Code && item.RelationResource != "" {
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done = false
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dependencies = append(dependencies, item.RelationResource)
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}
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}
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if done {
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break
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}
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}
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return dependencies
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}
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// 获取关联路径, [A, C, B] => [A -> B -> C]
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func GetModelPrefixForRelations(model string, items []ResRelation) (result []any) {
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result = append([]any{model}, result...)
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for _, item := range items {
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if item.Code == model && (item.Type == "hasMany" || item.Type == "hasOne") {
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if item.Type == "hasMany" {
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result = append(result, 0)
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}
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return append(GetModelPrefixForRelations(item.RelationResource, items), result...)
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}
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}
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return result
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}
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// 获取关联路径, [A, C, B] => [A -> B -> C]
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func GetModelJoinsForRelations(model string, items []ResRelation) (result []string) {
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result = append([]string{model}, result...)
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for _, item := range items {
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if item.Code == model && (item.Type == "left" || item.Type == "right" || item.Type == "inner") {
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return append(GetModelJoinsForRelations(item.RelationResource, items), result...)
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}
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}
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return result
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}
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func GetDataIndexPrefixForRelations(model string, items []ResRelation) (result []any) {
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result = append([]any{model}, result...)
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for _, item := range items {
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if item.Code == model && (item.Type == "hasMany" || item.Type == "hasOne") {
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return append(GetDataIndexPrefixForRelations(item.RelationResource, items), result...)
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}
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}
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return result
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}
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