Create C# classes based of MySQL table

Question

Is there anything built into .Net or visual studio that will allow my to create classes based off of a MySql table. I guess I am talking about persistence. I just want the class

Answer 1

You could also use LINQ to SQL with MySQL. But then, you should research a bit to find the correct provider you'd have to install.

I think it pretty much has it covered here:

LINQ to MySQL

Answer 2

The first example is very good but some types are missing so I'm sharing adding missing types (set, float etc ..)

select 'table_name' INTO @table; #table name
select 'db_name' into @schema; #database name
select concat('public class ',@table,'{') union
select concat('public ',tps.dest,' ',column_name,'{get;set;}') from  information_schema.columns c
join( #datatypes mapping
select 'char' as orign ,'string' as dest union all
select 'varchar' ,'string' union all
select 'longtext' ,'string' union all
select 'datetime' ,'DateTime?' union all
select 'text' ,'string' union all
select 'bit' ,'int?' union all
select 'shorte_prodottoe_prodotto' ,'int?' union all
select 'bigint' ,'int?' union all
select 'float' ,'float' union all
select 'smallint' ,'sbyte' union all
select 'int' ,'int?' union all
select 'double' ,'double?' union all
select 'decimal' ,'double?' union all
select 'date' ,'DateTime?' union all
select 'boolean' ,'bool' union all
select 'set' ,'string' union all
select 'tinyint' ,'bool?'
) tps on c.data_type like tps.orign
where table_schema=@schema and table_name=@table union
select '}';

Answer 3

NHibernate can connect to MySQL and is Free:

http://community.jboss.org/wiki/DatabasesSupportedByNHibernate

Answer 4

here is great work done :

http://www.code4copy.com/post/generate-c-sharp-model-class-mysql-table

Create a procedure as follows :

-- --------------------------------------------------------------------------------
-- Routine DDL
-- Note: comments before and after the routine body will not be stored by the server
-- --------------------------------------------------------------------------------
DELIMITER $$

CREATE DEFINER=`root`@`localhost` PROCEDURE `GenCSharpModel`(in pTableName VARCHAR(255) )
BEGIN
DECLARE vClassName varchar(255);
declare vClassCode mediumtext;
declare v_codeChunk varchar(1024);
DECLARE v_finished INTEGER DEFAULT 0;
DEClARE code_cursor CURSOR FOR
    SELECT code FROM temp1; 

DECLARE CONTINUE HANDLER 
        FOR NOT FOUND SET v_finished = 1;

set vClassCode ='';
/* Make class name*/
    SELECT (CASE WHEN col1 = col2 THEN col1 ELSE concat(col1,col2)  END) into vClassName
    FROM(
    SELECT CONCAT(UCASE(MID(ColumnName1,1,1)),LCASE(MID(ColumnName1,2))) as col1,
    CONCAT(UCASE(MID(ColumnName2,1,1)),LCASE(MID(ColumnName2,2))) as col2
    FROM
    (SELECT SUBSTRING_INDEX(pTableName, '_', -1) as ColumnName2,
        SUBSTRING_INDEX(pTableName, '_', 1) as ColumnName1) A) B;

    /*store all properties into temp table*/
    CREATE TEMPORARY TABLE IF NOT EXISTS  temp1 ENGINE=MyISAM  
    as (
    select concat( 'public ', ColumnType , ' ' , FieldName,' { get; set; }') code
    FROM(
    SELECT (CASE WHEN col1 = col2 THEN col1 ELSE concat(col1,col2)  END) AS FieldName, 
    case DATA_TYPE 
            when 'bigint' then 'long'
            when 'binary' then 'byte[]'
            when 'bit' then 'bool'
            when 'char' then 'string'
            when 'date' then 'DateTime'
            when 'datetime' then 'DateTime'
            when 'datetime2' then 'DateTime'
            when 'datetimeoffset' then 'DateTimeOffset'
            when 'decimal' then 'decimal'
            when 'float' then 'float'
            when 'image' then 'byte[]'
            when 'int' then 'int'
            when 'money' then 'decimal'
            when 'nchar' then 'char'
            when 'ntext' then 'string'
            when 'numeric' then 'decimal'
            when 'nvarchar' then 'string'
            when 'real' then 'double'
            when 'smalldatetime' then 'DateTime'
            when 'smallint' then 'short'
            when 'mediumint' then 'INT'
            when 'smallmoney' then 'decimal'
            when 'text' then 'string'
            when 'time' then 'TimeSpan'
            when 'timestamp' then 'DateTime'
            when 'tinyint' then 'byte'
            when 'uniqueidentifier' then 'Guid'
            when 'varbinary' then 'byte[]'
            when 'varchar' then 'string'
            when 'year' THEN 'UINT'
            else 'UNKNOWN_' + DATA_TYPE
        end ColumnType
    FROM(
    select CONCAT(UCASE(MID(ColumnName1,1,1)),LCASE(MID(ColumnName1,2))) as col1,
    CONCAT(UCASE(MID(ColumnName2,1,1)),LCASE(MID(ColumnName2,2))) as col2, DATA_TYPE
    from
    (SELECT SUBSTRING_INDEX(COLUMN_NAME, '_', -1) as ColumnName2,
    SUBSTRING_INDEX(COLUMN_NAME, '_', 1) as ColumnName1,
    DATA_TYPE, COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS  WHERE table_name = pTableName) A) B)C);

    set vClassCode = '';
    /* concat all properties*/
    OPEN code_cursor;

            get_code: LOOP

                FETCH code_cursor INTO v_codeChunk;

                IF v_finished = 1 THEN
                    LEAVE get_code;
                END IF;

                -- build code
                select  CONCAT(vClassCode,'\r\n', v_codeChunk) into  vClassCode ;

            END LOOP get_code;

        CLOSE code_cursor;

drop table temp1;
/*make class*/
select concat('public class ',vClassName,'\r\n{', vClassCode,'\r\n}');
END

However a little manual work will require.