orange-orm/src/table/relatedTable/whereSql.js

Object Relational Mapper

var newShallowJoinSql = require('../query/singleQuery/joinSql/newShallowJoinSqlCore');

function newWhereSql(context, relations, shallowFilter, depth = 0) {
	let relation = relations[depth];
	var c = {};
	var sql;

	c.visitJoin = function(relation) {
		var table = relation.childTable;

		//todo fix discriminators
		var alias = depth === 0 ? (relation.parentTable._rootAlias || relation.parentTable._dbName) : 'x' + depth;
		var leftColumns = relation.columns;
		var rightColumns = table._primaryColumns;
		where(alias, leftColumns, rightColumns);
	};

	c.visitOne = function(relation) {
		var joinRelation = relation.joinRelation;
		var rightColumns = joinRelation.columns;
		var childTable = joinRelation.childTable;
		var leftColumns = childTable._primaryColumns;
		//todo fix discriminators
		var alias = depth === 0 ? (childTable._rootAlias || childTable._dbName) : 'x' + depth;
		where(alias, leftColumns, rightColumns);
	};

	c.visitMany = c.visitOne;

	function where(alias, leftColumns, rightColumns) {
		var table = relation.childTable;
		var joinCore = newShallowJoinSql(context, table, leftColumns, rightColumns, alias, 'x' + (depth + 1));
		if (shallowFilter && shallowFilter.sql()) {
			sql = joinCore.prepend(' WHERE ').append(' AND ').append(shallowFilter);
		}
		else
			sql = joinCore.prepend(' WHERE ');
	}

	relation.accept(c);
	return sql;
}

module.exports = newWhereSql;