SqlUtils: Use camelCase.

[online-glom:gwt-glom.git] / src / main / java / org / glom / web / server / database / ListViewDBAccess.java

/*
 * Copyright (C) 2011 Openismus GmbH
 *
 * This file is part of GWT-Glom.
 *
 * GWT-Glom is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * GWT-Glom is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with GWT-Glom.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.glom.web.server.database;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.glom.web.server.SqlUtils;
import org.glom.web.server.libglom.Document;
import org.glom.web.shared.DataItem;
import org.glom.web.shared.TypedDataItem;
import org.glom.web.shared.libglom.Field;
import org.glom.web.shared.libglom.layout.LayoutGroup;
import org.glom.web.shared.libglom.layout.LayoutItemField;
import org.glom.web.shared.libglom.layout.SortClause;
import org.jooq.Condition;

import com.mchange.v2.c3p0.ComboPooledDataSource;

/**
 *
 */
public class ListViewDBAccess extends ListDBAccess {

        public ListViewDBAccess(final Document document, final String documentID, final ComboPooledDataSource cpds,
                        final String tableName, final LayoutGroup libglomLayoutGroup) {
                super(document, documentID, cpds, tableName);

                // Convert the LayoutGroup object into a List suitable for SQL queries.
                final List<LayoutGroup> tempLayoutGroupVec = new ArrayList<LayoutGroup>();
                tempLayoutGroupVec.add(libglomLayoutGroup);
                fieldsToGet = getFieldsToShowForSQLQuery(tempLayoutGroupVec);

                // Add a LayoutItem_Field for the primary key to the end of the LayoutFieldVector if it doesn't already contain
                // a primary key.
                if (getPrimaryKeyIndex() < 0) {
                        fieldsToGet.add(getPrimaryKeyLayoutItemField(tableName));
                }
        }

        public ArrayList<DataItem[]> getData(final String quickFind, final int start, final int length,
                        final boolean useSortClause, final int sortColumnIndex, final boolean isAscending) {

                return getListData(quickFind, start, length, useSortClause, sortColumnIndex, isAscending);
        }

        /*
         * (non-Javadoc)
         * 
         * @see org.glom.web.server.ListDBAccess#getExpectedResultSize()
         */
        public int getExpectedResultSize() {

                if (fieldsToGet == null || fieldsToGet.size() <= 0)
                        return -1;

                return getResultSizeOfSQLQuery();
        }

        /*
         * (non-Javadoc)
         * 
         * @see org.glom.web.server.ListDBAccess#getSQLQuery(LayoutFieldVector, SortClause)
         */
        @Override
        protected String getSelectQuery(final String quickFind, final SortClause sortClause) {
                // Later versions of libglom actually return an empty SqlExpr when quickFindValue is empty,
                // but let's be sure:
                Condition whereClause = null;
                if (!StringUtils.isEmpty(quickFind)) {
                        final TypedDataItem quickFindValue = new TypedDataItem();
                        quickFindValue.setText(quickFind);
                        whereClause = SqlUtils.getFindWhereClauseQuick(document, tableName, quickFindValue);
                }

                return SqlUtils.buildSqlSelectWithWhereClause(tableName, fieldsToGet, whereClause, sortClause);
        }

        /*
         * (non-Javadoc)
         * 
         * @see org.glom.web.server.ListDBAccess#getCountQuery(LayoutFieldVector)
         */
        @Override
        protected String getCountQuery() {
                return SqlUtils.buildSqlCountSelectWithWhereClause(tableName, fieldsToGet);
        }

        /**
         * Gets the primary key index of this list layout.
         * 
         * @return index of primary key or -1 if a primary key was not found
         */
        private int getPrimaryKeyIndex() {
                for (int i = 0; i < fieldsToGet.size(); i++) {
                        final LayoutItemField layoutItemField = fieldsToGet.get(i);
                        final Field field = layoutItemField.getFullFieldDetails();
                        if (tableName.equals(layoutItemField.getTableUsed(tableName)) && field != null && field.getPrimaryKey())
                                return i;
                }
                return -1;
        }
}