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1   /*
2    * Copyright 2004-2006 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  package org.seasar.tuigwaa.plugin.database;
17  
18  import java.util.HashMap;
19  import java.util.Map;
20  
21  import org.seasar.tuigwaa.cms.core.CmsRequest;
22  import org.seasar.tuigwaa.cms.core.CmsResponse;
23  import org.seasar.tuigwaa.cms.core.wiki.WikiContext;
24  import org.seasar.tuigwaa.controller.config.ValidatorUtils;
25  import org.seasar.tuigwaa.model.common.EntityUtils;
26  import org.seasar.tuigwaa.model.core.TgwAttribute;
27  import org.seasar.tuigwaa.model.core.TgwEntity;
28  import org.seasar.tuigwaa.model.core.impl.LinkAttribute;
29  import org.seasar.tuigwaa.model.core.impl.NestedAttribute;
30  import org.seasar.tuigwaa.plugin.AbstractTgwPlugin;
31  import org.seasar.tuigwaa.plugin.PluginException;
32  import org.seasar.tuigwaa.plugin.PluginRequest;
33  import org.seasar.tuigwaa.system.TgwSecurityException;
34  import org.seasar.tuigwaa.view.DataViewUtils;
35  
36  import com.isenshi.util.HtmlBuffer;
37  
38  /***
39   * @author nishioka
40   */
41  public class DataPlugin extends AbstractTgwPlugin {
42  
43  	public String doHTMLView(CmsRequest req, CmsResponse res,
44  			PluginRequest prequest) throws PluginException {
45  
46  		String[] array = prequest.getArgs();
47  
48  		String domainName = req.getSiteName();
49  		String entityName = array[0];
50  		TgwEntity entity = getEntity(domainName, entityName);
51  
52  		Object bean = null;
53  
54  		if ("userdata".equals(prequest.getName())) {
55  			bean = getBeanByUserName(req, entity);
56  		} else {
57  			bean = getBean(req, entity);
58  		}
59  
60  		boolean buttonFlag = prequest.getName().endsWith("button");
61  
62  		if ("data".equals(prequest.getName())
63  				|| "userdata".equals(prequest.getName())) {
64  			return doViewData(req, entity, bean, array);
65  		} else if ("fklink".equals(prequest.getName())) {
66  			return doFkLink(req, entity, bean, array, buttonFlag);
67  		} else {
68  			return doViewLink(req, entity, bean, array, buttonFlag);
69  		}
70  	}
71  
72  	private String doViewData(CmsRequest req, TgwEntity entity, Object bean,
73  			String[] array) throws PluginException {
74  		if (bean == null) {
75  			throw new PluginException("data bean not found");
76  		}
77  		String fieldName = array[1];
78  
79  		
80  		// ID（テーブルの主キー）が指定された場合
81  		if (fieldName.equals(entity.getPrimaryKeyDisplayName())
82  				|| fieldName.equals(entity.getPrimaryKeyColumnName())) {
83  			return EntityUtils.getId(bean).toString();
84  		}
85  
86  		// まず表示名で検索
87  		TgwAttribute attr = entity.getAttributeByDisplayName(fieldName);
88  		if (attr == null) {
89  			// 続いて実カラム名で検索
90  			attr = entity.getField(fieldName);
91  		}
92  		if (attr == null) {
93  			throw new PluginException(entity.getDisplayName()
94  					+ " has not an attribute " + fieldName);
95  		}
96  		return DataViewUtils.getFilteredData(bean, attr);
97  	}
98  
99  	private String doFkLink(CmsRequest req, TgwEntity entity, Object bean,
100 			String[] array, boolean buttonFlag) {
101 		String fkcolumn = array[1];
102 		String forwardPageName = array[2];
103 		TgwAttribute attr = entity.getAttributeByDisplayName(fkcolumn);
104 
105 		LinkAttribute fk = null;
106 		if (attr instanceof LinkAttribute) {
107 			fk = (LinkAttribute) attr;
108 		} else {
109 			fk = (LinkAttribute) ((NestedAttribute) attr).getRealField();
110 		}
111 		// LinkAttribute fk = (LinkAttribute)
112 
113 		String label = (existArg(array, 3)) ? array[3] : DataViewUtils
114 				.getFilteredData(bean, attr);
115 
116 		//
117 		TgwEntity refEntity = fk.getRefEntity();
118 		Object fkObj = EntityUtils.getProperty(bean, attr);
119 		return doViewLink(req, refEntity, fkObj, forwardPageName, label,
120 				buttonFlag);
121 	}
122 
123 	private String doViewLink(CmsRequest req, TgwEntity entity, Object bean,
124 			String[] array, boolean buttonFlag) {
125 		String forwardPageName = array[1];
126 		String label = null;
127 		if (array.length > 2) {
128 			label = array[2];
129 		}
130 		return doViewLink(req, entity, bean, forwardPageName, label, buttonFlag);
131 	}
132 
133 	private String doViewLink(CmsRequest req, TgwEntity entity, Object bean,
134 			String forwardPageName, String label, boolean buttonFlag) {
135 
136 		WikiContext context = getConfiguration().getWikiContext();
137 
138 		// create parameters
139 		Long id = EntityUtils.getId(bean);
140 		Map params = new HashMap();
141 		bindEntityId(params, entity.getName(), "" + id);
142 
143 		String link = null;
144 		try {
145 			link = context.getURLByName(forwardPageName, req, params)
146 					.toString();
147 		} catch (TgwSecurityException tse) {
148 			return ""; // security link
149 		}
150 
151 		if (label == null) {
152 			label = link;
153 		}
154 
155 		if (buttonFlag) {
156 			return ValidatorUtils.getLinkButton(label, link);
157 		} else {
158 			// craete anchor
159 			HtmlBuffer buf = new HtmlBuffer();
160 			buf.appendAnchor(link, label);
161 			return buf.toString();
162 		}
163 	}
164 }