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config.go
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package config
import (
"context"
)
type AccessListProvider func(ctx context.Context) []AccessConfig
var accessListProviderMap = make(map[string]AccessListProvider)
func RegAccessListProvider(name string, provider AccessListProvider) {
accessListProviderMap[name] = provider
}
type RequestListProvider func(ctx context.Context) []RequestConfig
var requestListProviderMap = make(map[string]RequestListProvider)
func RegRequestListProvider(name string, provider RequestListProvider) {
requestListProviderMap[name] = provider
}
type DbMetaProvider func(ctx context.Context) []Table
var dbMetaProviderMap = make(map[string]DbMetaProvider)
func RegDbMetaProvider(name string, provider DbMetaProvider) {
dbMetaProviderMap[name] = provider
}
type Config struct {
Access *Access
Functions *functions
MaxTreeWidth int
MaxTreeDeep int
rowKeyGenFuncMap map[string]RowKeyGenerator
// dbFieldStyle 数据库字段命名风格 请求传递到数据库中
DbFieldStyle FieldStyle
// jsonFieldStyle 数据库返回的字段
JsonFieldStyle FieldStyle
DbMeta *DBMeta
AccessListProvider string
RequestListProvider string
DbMetaProvider string
accessList []AccessConfig
requestConfigs *RequestConfigs
queryConfig *QueryConfig
actionConfig *ActionConfig
}
func New() *Config {
c := &Config{}
c.Access = NewAccess()
c.AccessListProvider = "db"
c.RequestListProvider = "db"
c.DbMetaProvider = "db"
c.MaxTreeWidth = 5
c.MaxTreeDeep = 5
c.rowKeyGenFuncMap = make(map[string]RowKeyGenerator)
c.DbFieldStyle = CaseSnake
c.JsonFieldStyle = CaseCamel
c.Functions = &functions{}
c.Functions.funcMap = make(map[string]*Func)
return c
}
func (c *Config) ReLoad() {
accessConfigMap := make(map[string]AccessConfig)
ctx := context.Background()
accessListProvider := accessListProviderMap[c.AccessListProvider]
if accessListProvider != nil {
c.accessList = accessListProvider(ctx)
defaultMaxCount := 100
for _, access := range c.accessList {
name := access.Alias
if name == "" {
name = access.Name
}
if access.FieldsGet == nil {
access.FieldsGet = map[string]*FieldsGetValue{}
}
if _, exists := access.FieldsGet["default"]; !exists {
access.FieldsGet["default"] = &FieldsGetValue{}
}
for role, _ := range access.FieldsGet {
if access.FieldsGet[role].MaxCount == nil {
access.FieldsGet[role].MaxCount = &defaultMaxCount
}
}
accessConfigMap[access.Alias] = access
}
}
c.Access.accessConfigMap = accessConfigMap
requestListProvider := requestListProviderMap[c.RequestListProvider]
if requestListProvider != nil {
requestList := requestListProvider(ctx)
c.requestConfigs = NewRequestConfig(requestList)
}
dbMetaProvider := dbMetaProviderMap[c.DbMetaProvider]
if dbMetaProvider != nil {
c.DbMeta = NewDbMeta(dbMetaProvider(ctx))
}
c.queryConfig = &QueryConfig{
access: c.Access,
functions: c.Functions,
maxTreeDeep: c.MaxTreeDeep,
maxTreeWidth: c.MaxTreeWidth,
defaultRoleFunc: c.Access.DefaultRoleFunc,
}
c.actionConfig = &ActionConfig{
requestConfig: c.requestConfigs,
access: c.Access,
functions: c.Functions,
rowKeyGenFuncMap: c.rowKeyGenFuncMap,
defaultRoleFunc: c.Access.DefaultRoleFunc,
}
}
func (c *Config) QueryConfig() *QueryConfig {
return c.queryConfig
}
func (c *Config) ActionConfig() *ActionConfig {
return c.actionConfig
}