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- 增加 FreeSql.Generator Sqlite 数据库生成实体类；
- 增加 Sqlite DbFirst 实现；
This commit is contained in:
28810
359
Providers/FreeSql.Provider.Sqlite/SqliteDbFirst.cs
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359
Providers/FreeSql.Provider.Sqlite/SqliteDbFirst.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.Concurrent;
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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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namespace FreeSql.Sqlite
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{
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class SqliteDbFirst : 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 SqliteDbFirst(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)GetSqlDbType(column);
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DbType GetSqlDbType(DbColumnInfo column)
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{
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var dbfull = column.DbTypeTextFull.ToLower();
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switch (dbfull)
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{
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case "boolean": return DbType.Boolean;
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case "smallint": return DbType.Int16;
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case "integer": return DbType.Int32;
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case "bigint": return DbType.Int64;
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case "int2": return DbType.Byte;
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case "unsigned": return DbType.Decimal;
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case "decimal(10,0)": return DbType.Decimal;
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case "decimal(21,0)": return DbType.Decimal;
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case "double": return DbType.Double;
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case "float": return DbType.Single;
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case "decimal(10,2)": return DbType.Decimal;
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case "datetime": return DbType.DateTime;
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case "blob": return DbType.Binary;
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case "nvarchar(255)": return DbType.String;
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case "character(36)": return DbType.AnsiString;
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}
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switch (column.DbTypeText.ToLower())
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{
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case "int":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["integer"]);
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return DbType.Int32;
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case "tinyint":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["int2"]);
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return DbType.Byte;
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case "mediumint":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["bigint"]);
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return DbType.Int64;
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case "unsigned big int":
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case "int8":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["bigint"]);
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return DbType.Int64;
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case "numeric":
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case "decimal":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["decimal(10,2)"]);
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return DbType.Decimal;
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case "date":
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case "smalldatetime":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["datetime"]);
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return DbType.Date;
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case "real":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["float"]);
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return DbType.Double;
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case "double precision":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["double"]);
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return DbType.Double;
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case "blob":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["blob"]);
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return DbType.Binary;
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case "character":
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case "varchar":
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case "varying character":
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case "nchar":
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case "native character":
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case "nvarchar":
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case "text":
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case "clob":
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["nvarchar(255)"]);
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return DbType.String;
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default:
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_dicDbToCs.TryAdd(dbfull, _dicDbToCs["nvarchar(255)"]);
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return DbType.String;
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}
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throw new NotImplementedException($"未实现 {column.DbTypeTextFull} 类型映射");
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}
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static ConcurrentDictionary<string, DbToCs> _dicDbToCs = new ConcurrentDictionary<string, DbToCs>(StringComparer.CurrentCultureIgnoreCase);
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static SqliteDbFirst()
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{
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var defaultDbToCs = new Dictionary<string, DbToCs>() {
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{ "boolean", new DbToCs("(bool?)", "{0} == \"1\"", "{0} == true ? \"1\" : \"0\"", "bool?", typeof(bool), typeof(bool?), "{0}.Value", "GetBoolean") },
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{ "smallint", new DbToCs("(short?)", "short.Parse({0})", "{0}.ToString()", "short?", typeof(short), typeof(short?), "{0}.Value", "GetInt16") },
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{ "integer", new DbToCs("(int?)", "int.Parse({0})", "{0}.ToString()", "int?", typeof(int), typeof(int?), "{0}.Value", "GetInt32") },
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{ "bigint", new DbToCs("(long?)", "long.Parse({0})", "{0}.ToString()", "long?", typeof(long), typeof(long?), "{0}.Value", "GetInt64") },
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{ "int2", new DbToCs("(byte?)", "byte.Parse({0})", "{0}.ToString()", "byte?", typeof(byte), typeof(byte?), "{0}.Value", "GetByte") },
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{ "unsigned", new DbToCs("(ushort?)", "ushort.Parse({0})", "{0}.ToString()", "ushort?", typeof(ushort), typeof(ushort?), "{0}.Value", "GetInt32") },
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{ "decimal(10,0)", new DbToCs("(uint?)", "uint.Parse({0})", "{0}.ToString()", "uint?", typeof(uint), typeof(uint?), "{0}.Value", "GetInt64") },
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{ "decimal(21,0)", new DbToCs("(ulong?)", "ulong.Parse({0})", "{0}.ToString()", "ulong?", typeof(ulong), typeof(ulong?), "{0}.Value", "GetDecimal") },
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{ "double", new DbToCs("(double?)", "double.Parse({0})", "{0}.ToString()", "double?", typeof(double), typeof(double?), "{0}.Value", "GetDouble") },
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{ "float", new DbToCs("(float?)", "float.Parse({0})", "{0}.ToString()", "float?", typeof(float), typeof(float?), "{0}.Value", "GetFloat") },
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{ "decimal(10,2)", new DbToCs("(decimal?)", "decimal.Parse({0})", "{0}.ToString()", "decimal?", typeof(decimal), typeof(decimal?), "{0}.Value", "GetDecimal") },
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{ "datetime", new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetValue") },
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{ "blob", new DbToCs("(byte[])", "Convert.FromBase64String({0})", "Convert.ToBase64String({0})", "byte[]", typeof(byte[]), typeof(byte[]), "{0}", "GetValue") },
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{ "nvarchar(255)", new DbToCs("", "{0}.Replace(StringifySplit, \"|\")", "{0}.Replace(\"|\", StringifySplit)", "string", typeof(string), typeof(string), "{0}", "GetString") },
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{ "character(36)", new DbToCs("(Guid?)", "Guid.Parse({0})", "{0}.ToString()", "Guid?", typeof(Guid), typeof(Guid?), "{0}.Value", "GetGuid") },
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};
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foreach (var kv in defaultDbToCs)
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_dicDbToCs.TryAdd(kv.Key, kv.Value);
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}
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public string GetCsConvert(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? (column.IsNullable ? trydc.csConvert : trydc.csConvert.Replace("?", "")) : null;
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public string GetCsParse(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? trydc.csParse : null;
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public string GetCsStringify(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? trydc.csStringify : null;
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public string GetCsType(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? (column.IsNullable ? trydc.csType : trydc.csType.Replace("?", "")) : null;
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public Type GetCsTypeInfo(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? trydc.csTypeInfo : null;
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public string GetCsTypeValue(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? trydc.csTypeValue : null;
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public string GetDataReaderMethod(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbTypeTextFull, out var trydc) ? trydc.dataReaderMethod : null;
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public List<string> GetDatabases()
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{
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return _orm.Ado.ExecuteArray("PRAGMA database_list").Select(a => string.Concat(a[1])).ToList();
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}
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public List<DbTableInfo> GetTablesByDatabase(params string[] database2)
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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 database = database2?.ToArray();
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if (database == null || database.Any() == false) database = GetDatabases().ToArray();
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if (database.Any() == false) return loc1;
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Action<object[]> addColumn = row =>
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{
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string table_id = string.Concat(row[0]);
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string column = string.Concat(row[1]);
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string type = string.Concat(row[2]);
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//long max_length = long.Parse(string.Concat(row[3]));
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string sqlType = string.Concat(row[4]);
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var m_len = Regex.Match(sqlType, @"\w+\((\d+)");
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int max_length = m_len.Success ? int.Parse(m_len.Groups[1].Value) : -1;
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bool is_nullable = string.Concat(row[5]) == "1";
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bool is_identity = string.Concat(row[6]) == "1";
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bool is_primary = string.Concat(row[7]) == "1";
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string comment = string.Concat(row[8]);
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if (max_length == 0) max_length = -1;
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loc3[table_id].Add(column, new DbColumnInfo
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{
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Name = column,
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MaxLength = max_length,
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IsIdentity = is_identity,
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IsNullable = is_nullable,
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IsPrimary = is_primary,
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DbTypeText = type,
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DbTypeTextFull = sqlType,
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Table = loc2[table_id],
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Coment = comment
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});
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loc3[table_id][column].DbType = this.GetDbType(loc3[table_id][column]);
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loc3[table_id][column].CsType = this.GetCsTypeInfo(loc3[table_id][column]);
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};
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foreach (var db in database)
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{
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var sql = $@"select
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'{db}.' || tbl_name,
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'{db}',
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tbl_name,
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'' Comment,
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'TABLE',
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sql
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from {db}.sqlite_master where type = 'table'";
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) continue;
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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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var type = string.Concat(row[4]) == "VIEW" ? DbTableType.VIEW : DbTableType.TABLE;
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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 >= 999)
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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 >= 999)
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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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if (type == DbTableType.TABLE && table != "sqlite_sequence")
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{
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var dsql = string.Concat(row[5]);
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var cols = _orm.Ado.ExecuteArray(CommandType.Text, $"PRAGMA \"{db}\".table_info(\"{table}\")");
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foreach (var col in cols)
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{
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var col_name = string.Concat(col[1]);
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var is_identity = false;
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var dsqlIdx = dsql?.IndexOf($"\"{col_name}\" ");
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if (dsqlIdx > 0)
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{
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var dsqlLastIdx = dsql.IndexOf('\n', dsqlIdx.Value);
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if (dsqlLastIdx > 0) is_identity = dsql.Substring(dsqlIdx.Value, dsqlLastIdx - dsqlIdx.Value).Contains("AUTOINCREMENT");
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}
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var ds2item = new object[9];
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ds2item[0] = table_id;
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ds2item[1] = col_name;
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ds2item[2] = Regex.Replace(string.Concat(col[2]), @"\(\d+(\b*,\b*\d+)?\)", "").ToUpper();
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ds2item[4] = string.Concat(col[2]).ToUpper();
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ds2item[5] = string.Concat(col[5]) == "0" && string.Concat(col[3]) == "0" ? 1 : 0;
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ds2item[6] = is_identity;
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ds2item[7] = string.Concat(col[5]) == "1" ? 1 : 0;
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ds2item[8] = "";
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addColumn(ds2item);
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}
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var fks = _orm.Ado.ExecuteArray(CommandType.Text, $"PRAGMA \"{db}\".foreign_key_list(\"{table}\")");
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if (fks != null && fks.Length > 0)
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{
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var fkColumns = new Dictionary<string, Dictionary<string, DbForeignInfo>>();
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foreach (var fk in fks)
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{
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string column = string.Concat(fk[3]);
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string fk_id = $"{db}.{table}.{fk[0]}";
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string ref_table_id = database.Length == 1 ? string.Concat(fk[2]) : $"{db}.{fk[2]}";
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string referenced_column = string.Concat(fk[4]);
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if (loc3.ContainsKey(table_id) == false || loc3[table_id].ContainsKey(column) == false) continue;
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var loc9 = loc3[table_id][column];
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if (loc2.ContainsKey(ref_table_id) == false) continue;
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var loc10 = loc2[ref_table_id];
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var loc11 = loc3[ref_table_id][referenced_column];
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Dictionary<string, DbForeignInfo> loc12 = null;
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DbForeignInfo loc13 = null;
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if (!fkColumns.TryGetValue(table_id, out loc12))
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fkColumns.Add(table_id, loc12 = new Dictionary<string, DbForeignInfo>());
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if (!loc12.TryGetValue(fk_id, out loc13))
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loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[table_id], ReferencedTable = loc10 });
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loc13.Columns.Add(loc9);
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loc13.ReferencedColumns.Add(loc11);
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}
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foreach (var table_id2 in fkColumns.Keys)
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foreach (var fk in fkColumns[table_id2])
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loc2[table_id2].ForeignsDict.Add(fk.Key, fk.Value);
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}
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}
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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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if (loc6.Count == 0) continue;
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}
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foreach (var table_id in loc3.Keys)
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{
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foreach (var loc5 in loc3[table_id].Values)
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{
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loc2[table_id].Columns.Add(loc5);
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if (loc5.IsIdentity) loc2[table_id].Identitys.Add(loc5);
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if (loc5.IsPrimary) loc2[table_id].Primarys.Add(loc5);
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}
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}
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foreach (var loc4 in loc2.Values)
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{
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//if (loc4.Primarys.Count == 0 && loc4.UniquesDict.Count > 0)
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//{
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// foreach (var loc5 in loc4.UniquesDict.First().Value.Columns)
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// {
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// loc5.Column.IsPrimary = true;
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// loc4.Primarys.Add(loc5.Column);
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// }
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//}
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loc4.Primarys.Sort((c1, c2) => c1.Name.CompareTo(c2.Name));
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loc4.Columns.Sort((c1, c2) =>
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{
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int compare = c2.IsPrimary.CompareTo(c1.IsPrimary);
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if (compare == 0)
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{
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bool b1 = loc4.ForeignsDict.Values.Where(fk => fk.Columns.Where(c3 => c3.Name == c1.Name).Any()).Any();
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bool b2 = loc4.ForeignsDict.Values.Where(fk => fk.Columns.Where(c3 => c3.Name == c2.Name).Any()).Any();
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compare = b2.CompareTo(b1);
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}
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//if (compare == 0) compare = c1.Name.CompareTo(c2.Name);
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return compare;
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});
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loc1.Add(loc4);
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}
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loc1.Sort((t1, t2) =>
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{
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var ret = t1.Schema.CompareTo(t2.Schema);
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if (ret == 0) ret = t1.Name.CompareTo(t2.Name);
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return ret;
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});
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loc2.Clear();
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loc3.Clear();
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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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