/
DBSchema.go
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/
DBSchema.go
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package DBSchema
import (
"encoding/json"
"fmt"
"github.com/lambda-platform/lambda/DB"
"github.com/lambda-platform/lambda/config"
"github.com/lambda-platform/lambda/models"
"os"
"strings"
)
var Enums []models.PostgresEnum
func GetDBSchema() models.DBSCHEMA {
tables := Tables()
tableMetas := make(map[string][]models.TableMeta, 0)
if config.Config.Database.Connection == "postgres" {
DB.DB.Raw("SELECT pg_type.typname FROM pg_type JOIN pg_enum ON pg_enum.enumtypid = pg_type.oid GROUP BY pg_type.typname").Scan(&Enums)
}
for _, table := range tables["tables"] {
tableMetas[table] = TableMetas(table)
}
for _, table := range tables["views"] {
tableMetas[table] = TableMetas(table)
}
vbSchemas := models.DBSCHEMA{
TableList: tables["tables"],
ViewList: tables["views"],
TableMeta: tableMetas,
}
file, _ := json.MarshalIndent(vbSchemas, "", " ")
_ = os.WriteFile("lambda/db_schema.json", file, 0755)
return vbSchemas
}
func GetDBSchemaWithTargets(tables map[string][]string) models.DBSCHEMA {
tableMetas := make(map[string][]models.TableMeta, 0)
if config.Config.Database.Connection == "postgres" {
DB.DB.Raw("SELECT pg_type.typname FROM pg_type JOIN pg_enum ON pg_enum.enumtypid = pg_type.oid GROUP BY pg_type.typname").Scan(&Enums)
}
for _, table := range tables["tables"] {
tableMetas[table] = TableMetas(table)
}
for _, table := range tables["views"] {
tableMetas[table] = TableMetas(table)
}
vbSchemas := models.DBSCHEMA{
TableList: tables["tables"],
ViewList: tables["views"],
TableMeta: tableMetas,
}
file, _ := json.MarshalIndent(vbSchemas, "", " ")
_ = os.WriteFile("lambda/db_schema.json", file, 0755)
return vbSchemas
}
func Tables() map[string][]string {
tables := make([]string, 0)
views := make([]string, 0)
//var dbTables []dbTable
//DB.Raw("SHOW FULL TABLES").Scan(&dbTables)
DB_ := DB.DBConnection()
if config.Config.Database.Connection == "mssql" {
rows, _ := DB_.Query("SELECT TABLE_NAME, TABLE_TYPE FROM INFORMATION_SCHEMA.TABLES ORDER BY TABLE_NAME")
for rows.Next() {
var TABLE_NAME, TABLE_TYPE string
rows.Scan(&TABLE_NAME, &TABLE_TYPE)
if TABLE_TYPE != "VIEW" {
tables = append(tables, TABLE_NAME)
} else {
views = append(views, TABLE_NAME)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
} else if config.Config.Database.Connection == "postgres" {
rows, _ := DB_.Query("SELECT tablename, concat('TABLE') as tabletype FROM pg_catalog.pg_tables WHERE schemaname != 'pg_catalog' AND schemaname != 'information_schema' union SELECT table_name as tablename, concat('VIEW') as tabletype FROM information_schema.views where table_schema not in ('information_schema', 'pg_catalog') ORDER BY tablename")
for rows.Next() {
var tableName, tableType string
rows.Scan(&tableName, &tableType)
if tableType != "VIEW" {
tables = append(tables, tableName)
} else {
views = append(views, tableName)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
} else if config.Config.Database.Connection == "oracle" {
rows, _ := DB_.Query(fmt.Sprintf("SELECT TABLE_NAME FROM All_TABLES WHERE OWNER = '%s' ORDER BY TABLE_NAME", config.Config.Database.UserName))
for rows.Next() {
var tableName string
rows.Scan(&tableName)
tables = append(tables, tableName)
}
rows, _ = DB_.Query(fmt.Sprintf("SELECT VIEW_NAME FROM All_VIEWS WHERE OWNER = '%s' ORDER BY VIEW_NAME", config.Config.Database.UserName))
for rows.Next() {
var tableType string
rows.Scan(&tableType)
views = append(views, tableType)
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
} else {
rows, _ := DB_.Query("SHOW FULL TABLES")
for rows.Next() {
var tableName, tableType string
rows.Scan(&tableName, &tableType)
if tableType == "BASE TABLE" {
tables = append(tables, tableName)
} else {
views = append(views, tableName)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
}
}
func TableMetas(tableName string) []models.TableMeta {
tableMetas := make([]models.TableMeta, 0)
if config.Config.Database.Connection == "mssql" {
var pkColumn models.PKColumn
DB.DB.Raw("SELECT COLUMN_NAME FROM " + config.Config.Database.Database + ".INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE TABLE_NAME LIKE '" + tableName + "' AND CONSTRAINT_NAME LIKE '%PK%'").Scan(&pkColumn)
var currentTableMetas []models.MSTableMata
DB.DB.Raw("SELECT COLUMN_NAME, DATA_TYPE, DC.DEFINITION AS DEFAULT_VALUE FROM " + config.Config.Database.Database + ".INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '" + tableName + "'").Scan(¤tTableMetas)
for _, column := range currentTableMetas {
key := ""
extra := ""
if column.ColumnName == pkColumn.ColumnName {
key = "PRI"
extra = "auto_increment"
}
dataType := column.DataType
if column.DataType == "nvarchar" {
dataType = "varchar"
} else if column.DataType == "ntext" {
dataType = "text"
}
dataType = IsSecureField(tableName, column.ColumnName, dataType)
tableMetas = append(tableMetas, models.TableMeta{
Model: column.ColumnName,
Title: column.ColumnName,
DbType: dataType,
Table: tableName,
Key: key,
Extra: extra,
DefaultValue: column.DefaultValue,
})
}
} else if config.Config.Database.Connection == "postgres" {
var currentTableMetas []models.PostgresTableMata
DB.DB.Raw(fmt.Sprintf("SELECT column_name, udt_name, is_nullable, is_identity, column_default, numeric_scale, table_schema FROM information_schema.columns WHERE udt_catalog = '%s' AND table_name = '%s' ORDER BY ORDINAL_POSITION", config.Config.Database.Database, tableName)).Scan(¤tTableMetas)
for _, column := range currentTableMetas {
key := ""
extra := ""
scale := ""
if column.IsIdentity == "YES" {
key = "PRI"
extra = "auto_increment"
} else if column.ColumnDefault != nil {
if strings.Contains(*column.ColumnDefault, "nextval(") {
key = "PRI"
extra = "auto_increment"
}
if strings.Contains(*column.ColumnDefault, "SYS_GUID") {
key = "PRI"
extra = "auto_increment"
}
if strings.Contains(*column.ColumnDefault, "gen_random_uuid") {
key = "PRI"
extra = "auto_increment"
}
}
if column.DataType == "geometry" {
//extra = "Point"
//scale = ";geotype:"+column.Type
}
for _, enum := range Enums {
if enum.Typname == column.DataType {
column.DataType = "varchar"
}
}
if column.NumericScale != nil {
if *column.NumericScale >= 1 {
scale = ";scale:2"
}
}
column.DataType = IsSecureField(tableName, column.ColumnName, column.DataType)
tableMetas = append(tableMetas, models.TableMeta{
Model: column.ColumnName,
Title: column.ColumnName,
DbType: column.DataType,
Table: tableName,
Key: key,
Extra: extra,
Scale: scale,
Nullable: column.ISNullAble,
DefaultValue: column.ColumnDefault,
TableSchema: column.TableSchema,
})
}
} else if config.Config.Database.Connection == "oracle" {
var currentTableMetas []models.OracleTableMata
//fmt.Println(fmt.Sprintf("SELECT COLUMN_NAME, DATA_TYPE, NULLABLE, IDENTITY_COLUMN, DATA_DEFAULT FROM ALL_TAB_COLUMNS WHERE OWNER = '%s' AND TABLE_NAME = '%s' ORDER BY COLUMN_ID ASC", config.Config.Database.UserName, tableName))
DB.DB.Raw(fmt.Sprintf("SELECT COLUMN_NAME, DATA_TYPE, NULLABLE, IDENTITY_COLUMN, DATA_DEFAULT FROM ALL_TAB_COLUMNS WHERE OWNER = '%s' AND TABLE_NAME = '%s' ORDER BY COLUMN_ID ASC", config.Config.Database.UserName, tableName)).Scan(¤tTableMetas)
for _, column := range currentTableMetas {
key := ""
extra := ""
Nullable := "YES"
scale := ""
if column.IdentityColumn == "YES" {
key = "PRI"
extra = "auto_increment"
} else if column.DataDefault != nil {
if strings.Contains(*column.DataDefault, "nextval") {
key = "PRI"
extra = "auto_increment"
}
if strings.Contains(*column.DataDefault, "SYS_GUID") {
key = "PRI"
extra = "auto_increment"
}
}
if column.NullAble == "N" {
Nullable = "NO"
}
dataType := column.DataType
if column.DataType == "VARCHAR2" {
dataType = "varchar"
} else if column.DataType == "LONG" {
dataType = "text"
} else if column.DataType == "NUMBER" {
if column.ColumnName == "ID" || strings.HasPrefix(column.ColumnName, "ID") || strings.HasSuffix(column.ColumnName, "ID") {
dataType = "int"
}
}
//if column.DataType == "BLOB" {
// //scale = ";serializer:gob"
//}
dataType = IsSecureField(tableName, column.ColumnName, dataType)
tableMetas = append(tableMetas, models.TableMeta{
Model: column.ColumnName,
Title: column.ColumnName,
DbType: dataType,
Table: tableName,
Key: key,
Extra: extra,
Nullable: Nullable,
Scale: scale,
DefaultValue: column.DataDefault,
})
}
} else {
currentTableMetas := []models.MySQLTableMata{}
DB.DB.Raw(fmt.Sprintf("SELECT column_name as column_name, column_key as column_key, data_type as data_type, is_nullable as is_nullable, COLUMN_DEFAULT as default_value FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = '%s' AND table_schema = '%s' ORDER BY ORDINAL_POSITION", tableName, config.Config.Database.Database)).Scan(¤tTableMetas)
for _, column := range currentTableMetas {
key := ""
extra := ""
if column.ColumnKey == "PRI" {
key = "PRI"
extra = "auto_increment"
}
column.DataType = IsSecureField(tableName, column.ColumnName, column.DataType)
tableMetas = append(tableMetas, models.TableMeta{
Model: column.ColumnName,
Title: column.ColumnName,
DbType: column.DataType,
Table: tableName,
Key: key,
Extra: extra,
Nullable: column.ISNullAble,
DefaultValue: column.DefaultValue,
})
}
}
return tableMetas
}
func IsSecureField(table, column, dataType string) string {
if len(config.LambdaConfig.SecureFields) >= 1 {
for _, field := range config.LambdaConfig.SecureFields {
if field.Table == table && field.Column == column {
return "secure"
}
}
}
return dataType
}
func GenerateSchemaForCloud() models.DBSCHEMA {
tables := TablesForCloud()
table_metas := make(map[string][]models.TableMeta, 0)
for _, table := range tables["tables"] {
if table != "vb_schemas" && table != "vb_schemas_admin" && table != "krud" {
table_metas_ := TableMetas(table)
table_metas[table] = table_metas_
}
}
for _, table := range tables["views"] {
table_metas_ := TableMetas(table)
table_metas[table] = table_metas_
}
vb_schemas := models.DBSCHEMA{
tables["tables"],
tables["views"],
table_metas,
0,
"",
}
file, _ := json.MarshalIndent(vb_schemas, "", " ")
_ = os.WriteFile("app/models/db_schema.json", file, 0755)
return vb_schemas
}
func TablesForCloud() map[string][]string {
tables := make([]string, 0)
views := make([]string, 0)
//var dbTables []dbTable
//DB.Raw("SHOW FULL TABLES").Scan(&dbTables)
DB_ := DB.DBConnection()
if config.Config.Database.Connection == "mssql" {
rows, _ := DB_.Query("SELECT TABLE_NAME, TABLE_TYPE FROM INFORMATION_SCHEMA.TABLES ORDER BY TABLE_NAME")
for rows.Next() {
var TABLE_NAME, TABLE_TYPE string
rows.Scan(&TABLE_NAME, &TABLE_TYPE)
if TABLE_TYPE != "VIEW" {
if TABLE_NAME != "vb_schemas" && TABLE_NAME != "vb_schemas_admin" && TABLE_NAME != "krud" && TABLE_NAME != "password_resets" {
tables = append(tables, TABLE_NAME)
}
} else {
views = append(views, TABLE_NAME)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
} else if config.Config.Database.Connection == "postgres" {
rows, _ := DB_.Query("SELECT tablename, concat('TABLE') as tabletype FROM pg_catalog.pg_tables WHERE schemaname != 'pg_catalog' AND schemaname != 'information_schema' union SELECT table_name as tablename, concat('VIEW') as tabletype FROM information_schema.views where table_schema not in ('information_schema', 'pg_catalog') ORDER BY tablename")
for rows.Next() {
var tableName, tableType string
rows.Scan(&tableName, &tableType)
if tableType != "VIEW" {
if tableName != "vb_schemas" && tableName != "vb_schemas_admin" && tableName != "krud" && tableName != "password_resets" {
tables = append(tables, tableName)
}
} else {
views = append(views, tableName)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
} else {
rows, _ := DB_.Query("SHOW FULL TABLES")
for rows.Next() {
var tableName, tableType string
rows.Scan(&tableName, &tableType)
if tableType == "BASE TABLE" {
if tableName != "vb_schemas" && tableName != "vb_schemas_admin" && tableName != "krud" && tableName != "password_resets" {
tables = append(tables, tableName)
}
} else {
views = append(views, tableName)
}
}
result := map[string][]string{}
result["tables"] = tables
result["views"] = views
return result
}
}