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suppourt ndty orm
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gbase_contributors
201
Providers/FreeSql.Provider.GBase/GBaseDbFirst.cs
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201
Providers/FreeSql.Provider.GBase/GBaseDbFirst.cs
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using FreeSql.DatabaseModel;
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using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Data.Odbc;
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namespace FreeSql.GBase
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{
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class GBaseDbFirst : IDbFirst
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{
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IFreeSql _orm;
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protected CommonUtils _commonUtils;
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protected CommonExpression _commonExpression;
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public GBaseDbFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression)
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{
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_orm = orm;
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_commonUtils = commonUtils;
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_commonExpression = commonExpression;
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}
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public int GetDbType(DbColumnInfo column) => (int)GetOdbcType(column);
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OdbcType GetOdbcType(DbColumnInfo column)
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{
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var dbtype = column.DbTypeText;
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OdbcType ret = OdbcType.VarChar;
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switch (dbtype.ToLower().TrimStart('_'))
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{
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case "int8":
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case "serial8":
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case "bigserial":
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case "bigint": ret = OdbcType.BigInt; break;
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case "byte":
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case "blob": ret = OdbcType.VarBinary; break;
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case "nchar": ret = OdbcType.NChar; break;
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case "char":
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case "character": ret = OdbcType.Char; break;
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case "date": ret = OdbcType.Date; break;
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case "dec":
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case "decimal": ret = OdbcType.Decimal; break;
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case "double":
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case "double precision":
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case "float": ret = OdbcType.Double; break;
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case "real":
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case "smallfloat": ret = OdbcType.Real; break;
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case "serial":
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case "integer":
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case "int": ret = OdbcType.Int; break;
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case "numeric":
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case "numeric precision": ret = OdbcType.Decimal; break;
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case "smallint": ret = OdbcType.SmallInt; break;
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case "interval": ret = OdbcType.Time; break;
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case "datetime":
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case "timestamp": ret = OdbcType.DateTime; break;
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case "varchar":
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case "char varying":
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case "character varying": ret = OdbcType.VarChar; break;
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case "nvarchar": ret = OdbcType.NVarChar; break;
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case "text": ret = OdbcType.Text; break;
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case "boolean": ret = OdbcType.Bit; break;
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case "char(36)": ret = OdbcType.UniqueIdentifier; break;
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}
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return ret;
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}
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static readonly Dictionary<int, DbToCs> _dicDbToCs = new Dictionary<int, DbToCs>() {
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{ (int)OdbcType.SmallInt, new DbToCs("(short?)", "short.Parse({0})", "{0}.ToString()", "short?", typeof(short), typeof(short?), "{0}.Value", "GetInt16") },
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{ (int)OdbcType.Int, new DbToCs("(int?)", "int.Parse({0})", "{0}.ToString()", "int?", typeof(int), typeof(int?), "{0}.Value", "GetInt32") },
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{ (int)OdbcType.BigInt, new DbToCs("(long?)", "long.Parse({0})", "{0}.ToString()", "long?", typeof(long), typeof(long?), "{0}.Value", "GetInt64") },
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{ (int)OdbcType.Decimal, new DbToCs("(decimal?)", "decimal.Parse({0})", "{0}.ToString()", "decimal?", typeof(decimal), typeof(decimal?), "{0}.Value", "GetDecimal") },
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{ (int)OdbcType.Real, new DbToCs("(float?)", "float.Parse({0})", "{0}.ToString()", "float?", typeof(float), typeof(float?), "{0}.Value", "GetFloat") },
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{ (int)OdbcType.Double, new DbToCs("(double?)", "double.Parse({0})", "{0}.ToString()", "double?", typeof(double), typeof(double?), "{0}.Value", "GetDouble") },
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{ (int)OdbcType.Decimal, new DbToCs("(decimal?)", "decimal.Parse({0})", "{0}.ToString()", "decimal?", typeof(decimal), typeof(decimal?), "{0}.Value", "GetDecimal") },
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{ (int)OdbcType.Char, new DbToCs("", "{0}.Replace(StringifySplit, \"|\")", "{0}.Replace(\"|\", StringifySplit)", "string", typeof(string), typeof(string), "{0}", "GetString") },
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{ (int)OdbcType.VarChar, new DbToCs("", "{0}.Replace(StringifySplit, \"|\")", "{0}.Replace(\"|\", StringifySplit)", "string", typeof(string), typeof(string), "{0}", "GetString") },
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{ (int)OdbcType.Text, new DbToCs("", "{0}.Replace(StringifySplit, \"|\")", "{0}.Replace(\"|\", StringifySplit)", "string", typeof(string), typeof(string), "{0}", "GetString") },
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{ (int)OdbcType.DateTime, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)OdbcType.Date, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)OdbcType.Time, new DbToCs("(TimeSpan?)", "TimeSpan.Parse(double.Parse({0}))", "{0}.Ticks.ToString()", "TimeSpan?", typeof(TimeSpan), typeof(TimeSpan?), "{0}.Value", "GetValue") },
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{ (int)OdbcType.Bit, new DbToCs("(bool?)", "{0} == \"1\"", "{0} == true ? \"1\" : \"0\"", "bool?", typeof(bool), typeof(bool?), "{0}.Value", "GetBoolean") },
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{ (int)OdbcType.VarBinary, new DbToCs("(byte[])", "Convert.FromBase64String({0})", "Convert.ToBase64String({0})", "byte[]", typeof(byte[]), typeof(byte[]), "{0}", "GetValue") },
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{ (int)OdbcType.UniqueIdentifier, new DbToCs("(Guid?)", "Guid.Parse({0})", "{0}.ToString()", "Guid", typeof(Guid), typeof(Guid?), "{0}", "GetString") },
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};
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public string GetCsConvert(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? (column.IsNullable ? trydc.csConvert : trydc.csConvert.Replace("?", "")) : null;
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public string GetCsParse(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csParse : null;
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public string GetCsStringify(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csStringify : null;
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public string GetCsType(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? (column.IsNullable ? trydc.csType : trydc.csType.Replace("?", "")) : null;
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public Type GetCsTypeInfo(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csTypeInfo : null;
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public string GetCsTypeValue(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csTypeValue : null;
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public string GetDataReaderMethod(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.dataReaderMethod : null;
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public List<string> GetDatabases()
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{
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throw new NotImplementedException();
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}
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public bool ExistsTable(string name, bool ignoreCase)
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{
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if (string.IsNullOrEmpty(name)) return false;
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var tbname = _commonUtils.SplitTableName(name);
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if (ignoreCase) tbname = tbname.Select(a => a.ToUpper()).ToArray();
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var sql = $" select 1 from systables where tabtype='T' and {(ignoreCase ? "upper(trim(tabname))" : "trim(tabname)")} = {_commonUtils.FormatSql("{0}", tbname.Last())}";
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return string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, sql)) == "1";
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}
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public DbTableInfo GetTableByName(string name, bool ignoreCase = true) => GetTables(null, name, ignoreCase)?.FirstOrDefault();
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public List<DbTableInfo> GetTablesByDatabase(params string[] database) => GetTables(database, null, false);
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public List<DbTableInfo> GetTables(string[] database, string tablename, bool ignoreCase)
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{
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string[] tbname = null;
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if (string.IsNullOrEmpty(tablename) == false)
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{
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tbname = _commonUtils.SplitTableName(tablename);
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if (ignoreCase) tbname = tbname.Select(a => a.ToUpper()).ToArray();
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}
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var loc1 = new List<DbTableInfo>();
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var loc2 = new Dictionary<string, DbTableInfo>();
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var loc3 = new Dictionary<string, Dictionary<string, DbColumnInfo>>();
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var sql = @"
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select
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a.""owner"" || a.tabname as id,
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trim(a.""owner"") as owner,
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trim(a.tabname) as name,
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trim(b.comments) as comment,
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a.tabtype as type
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from systables a
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left join syscomments b on b.tabname = a.tabname
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where a.tabtype in ('T', 'V')" + (tbname == null ? "" : $" and {(ignoreCase ? "upper(trim(a.tabname))" : "trim(a.tabname)")} = {_commonUtils.FormatSql("{0}", tbname.Last())}");
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) return loc1;
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var loc6 = new List<string[]>();
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var loc66 = new List<string[]>();
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var loc6_1000 = new List<string>();
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var loc66_1000 = new List<string>();
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foreach (var row in ds)
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{
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var table_id = string.Concat(row[0]);
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var schema = string.Concat(row[1]);
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var table = string.Concat(row[2]);
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var comment = string.Concat(row[3]);
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DbTableType type = DbTableType.TABLE;
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switch (string.Concat(row[4]))
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{
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case "V": type = DbTableType.VIEW; break;
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}
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if (database?.Length == 1)
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{
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table_id = table_id.Substring(table_id.IndexOf('.') + 1);
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schema = "";
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}
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loc2.Add(table_id, new DbTableInfo { Id = table_id, Schema = schema, Name = table, Comment = comment, Type = type });
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loc3.Add(table_id, new Dictionary<string, DbColumnInfo>());
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switch (type)
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{
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case DbTableType.TABLE:
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case DbTableType.VIEW:
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loc6_1000.Add(table.Replace("'", "''"));
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if (loc6_1000.Count >= 500)
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{
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loc6.Add(loc6_1000.ToArray());
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loc6_1000.Clear();
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}
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break;
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case DbTableType.StoreProcedure:
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loc66_1000.Add(table.Replace("'", "''"));
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if (loc66_1000.Count >= 500)
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{
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loc66.Add(loc66_1000.ToArray());
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loc66_1000.Clear();
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}
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break;
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}
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loc1.Add(loc2[table_id]);
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}
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if (loc6_1000.Count > 0) loc6.Add(loc6_1000.ToArray());
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if (loc66_1000.Count > 0) loc66.Add(loc66_1000.ToArray());
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//todo: ...
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return loc1;
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}
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public List<DbEnumInfo> GetEnumsByDatabase(params string[] database)
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{
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return new List<DbEnumInfo>();
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}
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}
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}
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