140 lines
4.5 KiB
PHP
140 lines
4.5 KiB
PHP
<?php
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class Version
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{
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private $db;
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private $changelog;
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private $err;
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private $userid;
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//初始化
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function __construct($config)
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{
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//$this->db=$config->db;
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$this->versionTable=$config->versionTable;
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$this->changelog=$config->changelog;
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$this->db = pg_connect("dbname=metadata user=gis password=gispassword host=210.77.68.241");
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$this->err=array();
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$this->userid=$config->userid;
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}
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function __destruct()
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{
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pg_close($link);
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}
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//版本更新：指定versionid
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function update($uuid,$versionid,$changelog="")
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{
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if (!$changelog) $changelog=$this->changelog;
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// 1. 保存变化记录 save changelog & userid
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$sql = "UPDATE {$this->versionTable} SET changelog='$changelog',userid=$this->userid WHERE id=$versionid and uuid='$uuid'";
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pg_query($this->db,$sql);
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// 2. 同步元数据
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$sql = "select xml from {$this->versionTable} where id=$versionid and uuid='$uuid'";
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$result=pg_query($this->db,$sql);
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$row = pg_fetch_row($result);
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$iso=new ISO19115();
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@$iso->loadXML($row[0]);
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if ($iso->validate())
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{
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$this->err[]="元数据: ".$uuid." 导入过程中发现错误。\n".implode("\n",$iso->error);
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}
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@$iso->saveDB($this->db);
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// 3. 移除中间版本
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$sql="delete from {$this->versionTable} where uuid='$uuid' and changelog is null";
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pg_query($this->db,$sql);
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pg_free_result($result);
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}
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//版本更新：以最新的一个版本进行更新
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function update($uuid,$changelog="")
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{
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if (!$changelog) $changelog=$this->changelog;
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// 1. 保存变化记录 save changelog & userid
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$sql = "UPDATE {$this->versionTable} SET changelog='$changelog',userid=$this->userid WHERE id in (select id from {$this->versionTable} where uuid='$uuid' order by ts_created desc limit 1)";
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pg_query($this->db,$sql);
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// 2. 同步元数据
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$sql = "select xml from {$this->versionTable} where uuid='$uuid' order by ts_created desc limit 1";
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$result=pg_query($this->db,$sql);
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$row = pg_fetch_row($result);
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$iso=new ISO19115();
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@$iso->loadXML($row[0]);
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if ($iso->validate())
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{
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$this->err[]="元数据: ".$uuid." 导入过程中发现错误。\n".implode("\n",$iso->error);
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}
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@$iso->saveDB($this->db);
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// 3. 移除中间版本
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$sql="delete from {$this->versionTable} where uuid='$uuid' and changelog is null";
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pg_query($this->db,$sql);
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pg_free_result($result);
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}
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//专题更新：将指定专题的数据，全部按照最新版本进行更新
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function update_by_source($sourceid,$changelog="")
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{
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if (!$changelog) $changelog=$this->changelog;
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// 1. 保存变化记录 save changelog & userid
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$sql = "UPDATE {$this->versionTable} SET changelog='$changelog',userid=$this->userid WHERE id in (
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select distinct on (uuid) id from {$this->versionTable} where uuid in (select uuid from datasource where sourceid=$sourceid) order by uuid,ts_created desc
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)";
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pg_query($this->db,$sql);
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// 2. 同步元数据
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$sql = "select xml from {$this->versionTable} WHERE id in (
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select distinct on (uuid) id from {$this->versionTable} where uuid in (select uuid from datasource where sourceid=$sourceid) order by uuid,ts_created desc
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)";
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$result=pg_query($this->db,$sql);
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while ($row = pg_fetch_row($result))
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{
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$iso=new ISO19115();
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@$iso->loadXML($row[0]);
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if ($iso->validate())
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{
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$this->err[]="元数据: ".$uuid." 导入过程中发现错误。\n".implode("\n",$iso->error);
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}
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@$iso->saveDB($this->db);
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}
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// 3. 移除中间版本
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$sql="delete from {$this->versionTable} where uuid in (select distinct uuid from datasource where sourceid=$sourceid) and changelog is null";
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pg_query($this->db,$sql);
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pg_free_result($result);
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}
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//版本删除
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function delete($uuid,$versionid)
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{
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$sql = "DELETE FROM {$this->versionTable} WHERE uuid='$uuid' and id=$versionid";
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return pg_query($this->db, $sql);
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}
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//todo: 版本直接发布（仅发布之前为评审状态的数据）
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function release($uuid,$versionid)
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{
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//todo
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$sql = "SELECT s.*,v.xml,m.title FROM en.mdstatus s left join en.mdversion v on s.uuid=v.uuid
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left join en.metadata m on s.uuid=m.uuid WHERE v.id=?";
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return pg_query($this->db,$sql);
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}
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function release($uuid)
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{
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//todo
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}
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function release_by_source($sourceid)
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{
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//todo
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}
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//错误输出
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function error()
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{
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if (!empty($this->err))
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{
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foreach($this->err as $e) print $e;
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}
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}
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} |