content: /**
   * 	Copyright (c) 2012 Philipp Giese
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  package com.orm.androrm.migration;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.commons.lang3.StringUtils;
  
  import android.content.Context;
  import android.database.SQLException;
  
  import com.orm.androrm.DatabaseAdapter;
  import com.orm.androrm.DatabaseBuilder;
  import com.orm.androrm.Model;
  
  /**
   * This migration will make sure that all relational tables, that belong
   * to a certain model are renamed to fit to the new name of the model. 
   * 
   * @author Philipp Giese
   *
   * @param <T>	Type of the model, that will be renamed. 
   */
  public class RenameRelationMigration<T extends Model> extends RenameModelMigration<T> {
  
  	protected RenameRelationMigration(String oldName) {
  		super(oldName, "rename_relation");
  	}
  
  	@Override
  	public boolean execute(Context context, Class<T> model) {
  		MigrationHelper helper = new MigrationHelper(context);
  		
  		List<String> tables = helper.getRelationTableNames(mOldName);
  		String newName = DatabaseBuilder.getTableName(model);
  
  		mValue = StringUtils.join(tables, ",");
  		
  		if(isApplied(model, context)) {
  			return false;
  		}
  		
  		DatabaseAdapter adapter = DatabaseAdapter.getInstance(context);
  		
  		for(String table : tables) {
  			List<String> parts = Arrays.asList(table.replace(mOldName, newName).split("_"));
  			Collections.sort(parts);
  			
  			String name = StringUtils.join(parts, "_");
  			
  			try {
  				adapter.renameTable(table, name);
  			} catch(SQLException e) {
  				return false;
  			}
  		}
  		
  		return true;
  	}
  	
  	@Override
  	public String getValue(Class<T> model) {
  		return mValue;
  	}
  
  }
  