Mercurial > hg > LGToc
annotate edit_section_db.php @ 2:bd46d26a7b18
adding transaction when updating sections
| author | Zoe Hong <zhong@mpiwg-berlin.mpg.de> |
|---|---|
| date | Fri, 20 Mar 2015 11:32:06 +0100 |
| parents | 1f9d2bfe1d13 |
| children | 5d0bfd909857 |
| rev | line source |
|---|---|
| 0 | 1 <?php |
| 2 include_once('Lib_mb_utf8.php'); | |
| 3 include_once('config.php'); | |
| 4 set_time_limit(0); | |
| 5 ini_set('memory_limit', '-1'); | |
| 6 | |
| 7 $link_mysql = mysql_connect($mysql_server, $mysql_user, $mysql_password); | |
| 8 mysql_query("SET NAMES utf8"); | |
| 9 | |
| 10 if (!$link_mysql) { | |
| 11 die('Could not connect: ' . mysql_error()); | |
| 12 } | |
| 13 | |
| 14 $db_selected = mysql_select_db($mysql_database, $link_mysql); | |
| 15 if (!$db_selected) { | |
| 16 die ('Can\'t use foo : ' . mysql_error()); | |
| 17 } | |
| 18 function checkSectionInfo($bookId){ | |
| 19 $query="SELECT * FROM sections_versions WHERE books_id=".$bookId." ORDER BY version DESC"; | |
| 20 $result=mysql_query($query); | |
| 21 if(mysql_num_rows($result)==0){ | |
| 22 $row['version']=0; | |
| 23 $row['editor']=""; | |
| 24 $row['date']=""; | |
| 25 return $row; | |
| 26 }else{ | |
| 27 $row=mysql_fetch_assoc($result); | |
| 28 return $row; | |
| 29 } | |
| 30 } | |
| 31 function checkMissingPage($bookInfo,$versionInfo){ | |
| 32 $bookId=$bookInfo['id']; | |
| 33 $bookPage=$bookInfo['line']; | |
| 34 if($versionInfo['version']!=0){ | |
| 35 $table="sections_revisions"; | |
| 36 $condition=" AND versions_id=".$versionInfo['id']." AND deleted=0 "; | |
| 37 $versionId=$versionInfo['id']; | |
| 38 }else{ | |
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39 // $table="sections"; |
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40 $table="sections_index"; |
| 0 | 41 $condition=""; |
| 42 } | |
| 43 $query="SELECT * | |
| 44 FROM ".$table." | |
| 45 WHERE books_id=".$bookId." ".$condition." | |
| 46 GROUP BY books_id,start_page,end_page | |
| 47 ORDER BY books_id,start_page,level,end_page"; | |
| 48 $result=mysql_query($query); | |
| 49 $lastPage=1; | |
| 50 $i=0; | |
| 51 $pageArray=array(); | |
| 52 while($row=mysql_fetch_assoc($result)){ | |
| 53 if($row['start_page']-1>$lastPage){ | |
| 54 $pageArray[$i]['start_page']=$lastPage; | |
| 55 $pageArray[$i]['end_page']=$row['start_page']; | |
| 56 //echo $pageArray[$i]['start_page']." ".$pageArray[$i]['end_page']."<br>"; | |
| 57 $i++; | |
| 58 } | |
| 59 $lastPage=$row['end_page']; | |
| 60 } | |
| 61 if($bookPage>$lastPage){ | |
| 62 $pageArray[$i]['start_page']=$lastPage; | |
| 63 $pageArray[$i]['end_page']=$bookPage; | |
| 64 } | |
| 65 return $pageArray; | |
| 66 } | |
| 67 function getSectionArray($bookId,$count,$versionInfo){ | |
| 68 | |
| 69 $str=""; | |
| 70 if($versionInfo['version']!=0){ | |
| 71 $table="sections_revisions"; | |
| 72 $condition="AND deleted=0 "; | |
| 73 $condition=" AND versions_id=".$versionInfo['id']." AND deleted=0 "; | |
| 74 }else{ | |
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75 // $table="sections"; |
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76 $table="sections_index"; |
| 0 | 77 $condition=""; |
| 78 } | |
| 79 | |
| 80 $query="SELECT * | |
| 81 FROM ".$table." | |
| 82 WHERE books_id=".$bookId." ".$condition." | |
| 83 GROUP BY books_id, start_page, end_page | |
| 84 HAVING COUNT( * ) >=".$count." | |
| 85 ORDER BY id ASC"; | |
| 86 /*ORDER BY start_page ASC, level ASC, id ASC,end_page DESC";*/ | |
| 87 $result=mysql_query($query); | |
| 88 | |
| 89 $i=0; | |
| 90 $pageArray=array(); | |
| 91 while($row=mysql_fetch_assoc($result)){ | |
| 92 $pageArray[$i]['start_page']=$row['start_page']; | |
| 93 $pageArray[$i]['end_page']=$row['end_page']; | |
| 94 $i++; | |
| 95 } | |
| 96 if($versionInfo['version']!=0){ | |
| 97 $query="SELECT id AS revisions_id, name,books_id,section_after,start_page,end_page,level,split_from,sections_id AS id, deleted FROM sections_revisions WHERE versions_id=".$versionInfo['id']." ORDER BY revisions_id ASC"; | |
| 98 }else{ | |
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99 $query="SELECT * FROM sections_index WHERE books_id=".$bookId." ORDER BY id ASC"; |
| 0 | 100 } |
| 101 $result=mysql_query($query); | |
| 102 | |
| 103 $i=0; | |
| 104 $sectionArray=array(); | |
| 105 while($row=mysql_fetch_assoc($result)){ | |
| 106 $flag=""; | |
| 107 if($i!=sizeof($pageArray) && $pageArray[$i]['start_page']==$row['start_page'] && $pageArray[$i]['end_page']==$row['end_page']){ | |
| 108 $flag="overlapper"; | |
| 109 $i++; | |
| 110 } | |
| 111 if($i!=0 && $pageArray[$i-1]['start_page']==$row['start_page'] && $pageArray[$i-1]['end_page']==$row['end_page']){ | |
| 112 $flag="overlapper"; | |
| 113 } | |
| 114 $row['flag']=$flag; | |
| 115 if(!isset($row['deleted'])){ | |
| 116 $row['deleted']=""; | |
| 117 }else{ | |
| 118 if($row['deleted']==0){ | |
| 119 $row['deleted']=""; | |
| 120 }else{ | |
| 121 $row['deleted']="deleted"; | |
| 122 } | |
| 123 } | |
| 124 $sectionArray[]=$row; | |
| 125 } | |
| 126 return $sectionArray; | |
| 127 } | |
| 128 function updateSectionArray($bookId,$sectionArray,$version,$editor){ | |
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129 |
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130 // -- Start Transaction -- |
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131 mysql_query("BEGIN"); |
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132 |
| 0 | 133 $query="INSERT INTO sections_versions (version,editor,date,books_id) VALUES (".($version+1).",'".$editor."',NOW(),'".$bookId."')"; |
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134 $result_versions=mysql_query($query); |
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135 if(!$result_versions){ |
| 0 | 136 echo json_encode("Failed during inserting sections_version records."); // .mysql_error(); |
| 137 } | |
| 138 $versionId=mysql_insert_id(); | |
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139 |
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140 |
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141 |
| 0 | 142 $query="INSERT INTO sections_revisions (name,books_id,section_after,start_page,end_page,level,split_from,sections_id,versions_id,deleted) VALUES "; |
| 143 foreach($sectionArray as $idx=>$row){ | |
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144 // get the section_id |
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145 $section_id = $row['id']; |
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146 $name = $row['name']; |
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147 $books_id = sprintf("%05d",$row['booksId']); |
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148 $section_after = $row['sectionAfter']; |
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149 $start_page = $row['startPage']; |
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150 $end_page = $row['endPage']; |
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151 $level = $row['level']; |
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152 $split_from = $row['splitFrom']; |
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153 $deleted = $row['deleted']; |
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154 |
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155 // --- update to section_index table, which is the up-to-date section table --- |
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156 $qry = ""; |
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157 if ($section_id == 0) { // section_id = 0 means it is a new record created by user |
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158 // insert new row to section_index table |
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159 $qry = "INSERT INTO sections_index (name,books_id,section_after,start_page,end_page,level,split_from) VALUES |
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160 ('".$name."','".$books_id."','".$section_after."',".$start_page. |
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161 ",".$end_page.",".$level.",".$split_from.")"; |
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162 |
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163 } else { |
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164 // update |
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165 $qry = "UPDATE sections_index SET name='".$name."',books_id='".$books_id."',section_after='".$section_after. |
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166 "',start_page=".$start_page.",end_page=".$end_page.",level=".$level.",split_from=".$split_from." WHERE id=".$section_id; |
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167 } |
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168 |
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169 $rst = mysql_query($qry); |
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170 if (!$rst) { |
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171 break; // handle to ROLLBACK |
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172 } |
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173 |
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174 if ($section_id == 0) { |
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175 // set section_id from section_index if this is a new section |
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176 $section_id = mysql_insert_id(); |
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177 } |
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178 |
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179 $str="("; |
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180 $str.="'".$name."',"; |
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181 $str.="'".$books_id."',"; |
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182 $str.="'".$section_after."',"; |
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183 $str.=$start_page.","; |
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184 $str.=$end_page.","; |
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185 $str.=$level.","; |
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186 $str.=$split_from.","; |
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187 $str.=$section_id.","; // sections_id should get from section_index table |
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188 $str.=$versionId.","; |
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189 $str.=$deleted; |
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190 $str.=")"; |
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191 if($idx!=sizeof($sectionArray)-1){ |
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192 $str.=", "; |
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193 } |
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194 |
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195 $query.=$str; |
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196 |
| 0 | 197 } |
| 198 $result=mysql_query($query); | |
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199 |
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200 // --- End Transaction --- |
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201 if ($result and $rst) { |
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202 mysql_query("COMMIT"); |
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203 echo json_encode("Succeeded."); // important returning info to js |
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204 |
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205 } else { |
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206 mysql_query("ROLLBACK"); |
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207 echo json_encode("Failed during updating sections."); |
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208 return; |
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209 } |
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210 |
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211 /* |
| 0 | 212 if(!$result){ |
| 213 echo json_encode("Failed during inserting sections_revisions records."); // .mysql_error(); | |
| 214 | |
| 215 // Delete the sections_versions for this user | |
| 216 // delete $versionId in table sections_versions | |
| 217 $query="DELETE FROM sections_versions WHERE id=".$versionId; | |
| 218 $result_deleting=mysql_query($query); | |
| 219 if(!$result_deleting){ | |
| 220 echo json_encode("Failed during deleting wrongly inserted sections_version record."); | |
| 221 } | |
| 222 return; | |
| 223 }else{ | |
| 224 echo json_encode("Succeeded."); | |
| 225 } | |
|
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226 */ |
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228 |
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229 |
| 0 | 230 } |
| 231 | |
| 232 | |
| 233 function _select_distinct(){ | |
| 234 /* | |
| 235 $query="SELECT DISTINCT (books_id) FROM sections"; | |
| 236 | |
| 237 $result=mysql_query($query); | |
| 238 if(!$result){ | |
| 239 echo json_encode("Failed during inserting section records."); | |
| 240 return; | |
| 241 }else{ | |
| 242 echo json_encode("Succeeded."); | |
| 243 } | |
| 244 | |
| 245 while($row=mysql_fetch_assoc($result)){ | |
| 246 // echo $row['books_id'], ", "; | |
| 247 } | |
| 248 | |
| 249 echo "section num: ".mysql_num_rows($result); | |
| 250 echo '\n'; | |
| 251 */ | |
| 252 | |
| 253 | |
| 254 //$query="SELECT id FROM books WHERE id NOT IN (SELECT DISTINCT (books_id) FROM sections)"; | |
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255 $query="SELECT books.id, books.name FROM books LEFT JOIN sections_index ON books.id=sections_index.books_id WHERE sections_index.books_id IS NULL"; |
| 0 | 256 |
| 257 $result=mysql_query($query); | |
| 258 if(!$result){ | |
| 259 echo json_encode("Failed during querying records."); | |
| 260 return; | |
| 261 } | |
| 262 | |
| 263 echo "missing books num: ".mysql_num_rows($result); | |
| 264 echo '\n'; | |
| 265 | |
| 266 | |
| 267 | |
| 268 | |
| 269 } | |
| 270 | |
| 271 | |
| 272 | |
| 273 function add_missing_books_to_sections(){ | |
| 274 // find missing books | |
| 275 // Run the following line/mysql to find out what books are missing in sections table | |
| 276 // _select_distinct(); | |
| 277 // Or load missing_books_id.csv | |
| 278 if (($missing_books = fopen("intermediate_results/missing_books.csv", "r")) !== FALSE) { | |
| 279 while (($data = fgetcsv($missing_books, ",")) !== FALSE) { | |
| 280 | |
| 281 $bookId = $data[0]; | |
| 282 $name = $data[1]; | |
| 283 | |
| 284 _add_book_to_sections($name, $bookId); | |
| 285 | |
| 286 } | |
| 287 fclose($missing_books); | |
| 288 } | |
| 289 | |
| 290 } | |
| 291 | |
| 292 | |
| 293 function _add_book_to_sections($name, $bookId){ | |
| 294 | |
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295 $query="INSERT INTO sections_index (name,books_id,section_after) VALUES "; |
| 0 | 296 |
| 297 $str="("; | |
| 298 $str.="'".$name."','"; | |
| 299 $str.=$bookId."',"; | |
| 300 $str.="''"; | |
| 301 $str.=")"; | |
| 302 $query.=$str; | |
| 303 | |
| 304 // echo $name.", ".$bookId."\n"; | |
| 305 | |
| 306 $result=mysql_query($query); | |
| 307 if(!$result){ | |
| 308 echo json_encode("Failed during inserting section records."); | |
| 309 return; | |
| 310 } | |
| 311 // echo mysql_insert_id(); | |
| 312 | |
| 313 } | |
| 314 | |
| 315 | |
| 316 if(isset($_POST['command']) && $_POST['command']!=''){ | |
| 317 $command=$_POST['command']; | |
| 318 if($command=="write"){ | |
| 319 | |
| 320 if(isset($_POST['bookId'])&&isset($_POST['sectionArray'])&&isset($_POST['version'])&&isset($_POST['editor'])&&\ | |
| 321 is_numeric($_POST['bookId']) && sizeof($_POST['sectionArray'])!=0 && is_numeric($_POST['version']) && $_POST['editor']!=""){ | |
| 322 $bookId=$_POST['bookId']; | |
| 323 $sectionArray=$_POST['sectionArray']; | |
| 324 $version=$_POST['version']; | |
| 325 $editor=$_POST['editor']; | |
| 326 | |
| 327 updateSectionArray($bookId,$sectionArray,$version,$editor); | |
| 328 } | |
| 329 else{ | |
| 330 echo json_encode("Editing info not correct."); | |
| 331 | |
| 332 } | |
| 333 } | |
| 334 else{ | |
| 335 echo json_encode("Wrong command."); | |
| 336 return; | |
| 337 } | |
| 338 } | |
| 339 | |
| 340 ?> |