<?php

function mymodule_block_info()
{
    $blocks = array();
    $add = db_select('mymodule_blocks_data', 'n')
                  ->fields('n', array('delta', 'title', 'content_type'))
                  ->condition('n.form_type', 'Add', '=')
                  ->execute();
    foreach ($add as $row) {
        $blocks[$row->delta] = array(
      'info' => t('@name (Add Form Block) Type: @type', array('@name' => $row->title, '@type' => $row->content_type)),
      'cache' => DRUPAL_NO_CACHE,
    );
    }

    $edit = db_select('mymodule_blocks_data', 'n')
                  ->fields('n', array('delta', 'title', 'content_type', 'nid'))
                  ->condition('n.form_type', 'Edit', '=')
                  ->execute();
    foreach ($edit as $row) {
        $blocks[$row->delta] = array(
      'info' => t('@name (Edit Form Block) Nid: @nid', array('@name' => $row->title, '@nid' => $row->nid)),
      'cache' => DRUPAL_NO_CACHE,
    );
    }

    return $blocks;
}