Problem:

Mysql produce TINYINT fields because BOOLEAN is just a synonym for TINYINT. And if you have TINYINT fields with value 0 or 1 (like BOOLEAN fields) in your database and use command symfony propel-build-schema to generate schema, you will have one problem with admin generator, because it will produse TINYINT fields as text form fields with value - 0 or 1, not as checkboxes. Admin generator needs BOOLEAN fields in schema to produse checkboxes.

Solution:

Solution to automate transformation field type tinyint to boolean where field name prefix is "is_".

sfPakeTransformTinyint.php

<?php
pake_desc( 'apply tinyint-boolean transformation to your data model' );
pake_task( 'transform-schema-tinyint', 'project_exists' );
 
function run_transform_schema_tinyint( $task, $args ) 
{
 
    // Check params
    // -- missing params ?
    if ( !count($args) ) {
        throw new Exception( 'You must provide a transformation to apply.' );
    }
 
    // -- schema exists ?
    $schema_filename = sprintf( '%s/schema.xml', sfConfig::get('sf_config_dir') );
    if ( !file_exists($schema_filename) ) {
        throw new Exception( "Missing schema.xml" );
    }
 
    // Backup schema
    pake_copy( $schema_filename, $schema_filename . '.previous', array('override' => true) );
 
     //do hard work - tinyint->boolean
    if ($args[0] == 'do') {
        $handle = fopen($schema_filename, "r");
        $contents = '';
        while (!feof($handle)) {
          $contents .= fread($handle, 8192);
        }
        fclose($handle);
 
        $contents = preg_replace('/(name="is_.*?type=")TINYINT"/i','$1BOOLEAN"',$contents);
 
        $handle = fopen($schema_filename, "w+");
        fwrite($handle, $contents);
        fclose($handle);
    }
     //undo hard work - boolean->tinyint
    if ($args[0] == 'undo') {
        $handle = fopen($schema_filename, "r");
        $contents = '';
        while (!feof($handle)) {
          $contents .= fread($handle, 8192);
        }
        fclose($handle);
 
        $contents = preg_replace('/(name="is_.*?type=")BOOLEAN"/i','$1TINYINT"',$contents);
 
        $handle = fopen($schema_filename, "w+");
        fwrite($handle, $contents);
        fclose($handle);
    }
 
}
 
?>

copy this code and drop it as new file in SF_DATA_DIR/tasks/ use command: symfony transform-schema-tinyint do to change tinyint to boolean, where field name with "is_" prefix, than rebuild your model with propel-build-model, clear cache, and use admin generator with checkboxes.

If something going wrong, do this command to undo changes in your model:

symfony transform-schema-tinyint undo (to change boolean to tinyint, where field name with "is_" prefix)

or you may use schema.xml.previous <- this is your schema before transformation