@kldit/cms/lib/fields/JoinField.js

A CMS Framework for @kldit/mvc

const CustomField = require( './CustomField' );
const { MQL } = require( 'mql-mysql' );

/**
 * @author Orlando Leite
 *
 * JoinField class
 */
module.exports = class JoinField extends CustomField
{
	constructor( table, name, column, value, joinType )
	{
		super( table, name, column, value, joinType );
		
		switch( joinType )
		{
			case 'LEFT_JOIN':
				joinType = MQL.LEFT_JOIN;
				break;
				
			case 'RIGHT_JOIN':
				joinType = MQL.RIGHT_JOIN;
				break;
				
			case 'INNER_JOIN':
				joinType = MQL.INNER_JOIN;
				break;
				
			case 'OUTER_JOIN':
				joinType = MQL.OUTER_JOIN;
				break;
			
			default:
				joinType = MQL.JOIN;
				break;
		}
		
		this.joinType = joinType;
	}
	
	joinType()
	{
		return this.joinType;
	}
	
	setup( request, mapName, map, path, mapId, field, db = null )
	{
		this.request = request;
		this.mapName = mapName;

		this.map = map;
		this.path = path;
		this.mapId = mapId;
		this.field = field;
		this.db = db;
		// parent::set( request, mapName, map, path, mapId, field, db );
		
		this.join = path = this.value.split( '.' );
		// console.log( this.mapId );
		this.value = ( this.mapId &&
			!this.mapId[mapName] && 
			 this.mapId[path[0]] && 
			 path[1] == 'id' ) 
			? this.mapId[path[0]] 
			: this.value;
			
		request.setColumn( this.table, this.column, this.name, this.value, this, this.joinType );
	}
	
	_table( targetName )
	{
		if( targetName == this.mapName )
		{
			return this.map;
		}
		else
		{
			var from = this.map.tables[targetName];

			if( from )
				return from;
			else
			{
				var result = {
					id : 'id',
					from : targetName,
					join : '' 
				};

				return result;
			}
		}
	}
	
	insert( values )
	{
		var t = this._table( this.table );
		
		if( t.id == this.column )
			this.request.setColumn( this.table, this.column, this.name, this.value, this, 0 );
	}
	
	update( values )
	{
		var t = this._table( this.table );
		
		//if( t.id == this.column )
		//	this.request.setColumn( this.table, this.column, this.name, this.value, this, 0 );
	}
}