问题描述
我正在处理一个网页,该网页根据我无权更改的 XML 提要发布演示时间表.
Feed 如下所示:
<session name="Session 1" starttime="2012-06-06 10:45" endtime="2012-06-06 12:45"><演示文稿名称="演示文稿 1">...演示信息</演示文稿><演示文稿名称="演示文稿 2">...演示信息</演示文稿></会话><session name="Session 2" starttime="2012-06-06 10:45" endtime="2012-06-06 12:45"><演示文稿名称="演示文稿 3">...演示信息</演示文稿><presentation name="Presentation 4">...演示信息</演示文稿></会话><session name="Session 3" starttime="2012-06-07 08:45" endtime="2012-06-07 10:45"><presentation name="Presentation 5">...演示信息</演示文稿><presentation name="Presentation 6">...演示信息</演示文稿></会话></track>
目前,我正在执行一个 <xsl:for-each select="session">
循环来提取信息,但最终我输出了重复的日期和时间.>
我做实际的日期和时间解析没有问题,所以我目前输出的是2012年6月6日;10:45 没有问题,但由于for-each,每次都被复制,如下:
2012 年 6 月 6 日
10:45-12:45
会话 1:演示 1、演示 2
2012 年 6 月 6 日
10:45-12:45
第 2 部分:演示 3、演示 4
2012 年 6 月 7 日:
8:45-10:45
第 3 部分:演示 5、演示 6
我想要的是以某种方式提取所有常见的日期时间,例如,得到如下输出:
2012 年 6 月 6 日:
10:45-12:45
会话 1:演示 1、演示 2
会话 2:演示 3、演示 4
2012 年 6 月 7 日:
8:45-10:45
第 3 部分:演示 5、演示 6
作为参考,这是我目前的实现:
<h4><!-- 输出到 Month, DD, YYYY --><xsl:call-template name="formatDate"><xsl:with-param name="dateTime" select="@starttime"/></xsl:call-template><h5><!-- 输出时间--><xsl:call-template name="formatTime"><xsl:with-param name="dateTime" select="@starttime"/></xsl:call-template>——<xsl:call-template name="formatTime"><xsl:with-param name="dateTime" select="@endtime"/></xsl:call-template><!-- 会话标题--><h5><xsl:value-of select="@name"/></h5><!-- 演示文稿标题--><xsl:for-each select="presentation"><xsl:value-of select="@name"/><xsl:element name="br"/></xsl:for-each></xsl:for-each>
和日期时间格式化程序:
<xsl:template name="formatDate"><xsl:param name="dateTime"/><xsl:variable name="date" select="substring-before($dateTime, ' ')"/><xsl:variable name="year" select="substring-before($date, '-')"/><xsl:variable name="month" select="number(substring-before(substring-after($date, '-'), '-'))"/><xsl:variable name="day" select="number(substring-after(substring-after($date, '-'), '-'))"/><!-- 输出--><xsl:when test="$month = '1'">一月</xsl:when><xsl:when test="$month = '2'">二月</xsl:when><xsl:when test="$month = '3'">三月</xsl:when><xsl:when test="$month = '4'">四月</xsl:when><xsl:when test="$month = '5'">May</xsl:when><xsl:when test="$month = '6'">六月</xsl:when><xsl:when test="$month = '7'">七月</xsl:when><xsl:when test="$month = '8'">August</xsl:when><xsl:when test="$month = '9'">九月</xsl:when><xsl:when test="$month = '10'">October</xsl:when><xsl:when test="$month = '11'">十一月</xsl:when><xsl:when test="$month = '12'">十二月</xsl:when></xsl:选择><xsl:value-of select="' '"/><xsl:value-of select="$day"/><xsl:value-of select="', '"/><xsl:value-of select="$year"/></xsl:模板><!-- 格式化日期时间--><xsl:template name="formatTime"><xsl:param name="dateTime"/><xsl:value-of select="substring-after($dateTime, ' ')"/></xsl:模板>
您想使用 慕尼黑方法.立即将其添加到样式表的根元素中:
<xsl:key name="sessions-by-track-name-starttime-and-endtime" match="/track/session" use="concat(parent::track/@name, '', @starttime, ' ', @endtime)"/>
然后更新您的 XSLT,如下所示:
<xsl:for-each select="session[generate-id() = generate-id(key('sessions-by-track-name-starttime-and-endtime', concat(parent::track/@name, ' ', @starttime, ' ', @endtime))[1])]"><h4><!-- 输出到 Month, DD, YYYY --><xsl:call-template name="formatDate"><xsl:with-param name="dateTime" select="@starttime"/></xsl:call-template><h5><!-- 输出时间--><xsl:call-template name="formatTime"><xsl:with-param name="dateTime" select="@starttime"/></xsl:call-template>——<xsl:call-template name="formatTime"><xsl:with-param name="dateTime" select="@endtime"/></xsl:call-template><xsl:for-each select="key('sessions-by-track-name-starttime-and-endtime', concat(parent::track/@name, ' ', @starttime, ' ', @endtime))"><!-- 会话标题--><h5><xsl:value-of select="@name"/></h5><!-- 演示文稿标题--><xsl:for-each select="presentation"><xsl:value-of select="@name"/><xsl:element name="br"/></xsl:for-each></xsl:for-each></xsl:for-each>
I am working on a webpage that publishes a schedule of presentations based on an XML feed that I don't have access to change.
The feed looks like this:
<track name="Track 1">
<session name="Session 1" starttime="2012-06-06 10:45" endtime="2012-06-06 12:45">
<presentation name="Presentation 1">
...presentation info
</presentation>
<presentation name="Presentation 2">
...presentation info
</presentation>
</session>
<session name="Session 2" starttime="2012-06-06 10:45" endtime="2012-06-06 12:45">
<presentation name="Presentation 3">
...presentation info
</presentation>
<presentation name="Presentation 4">
...presentation info
</presentation>
</session>
<session name="Session 3" starttime="2012-06-07 08:45" endtime="2012-06-07 10:45">
<presentation name="Presentation 5">
...presentation info
</presentation>
<presentation name="Presentation 6">
...presentation info
</presentation>
</session>
</track>
At present, I am doing an <xsl:for-each select="session">
loop to pull out information, however that ends with me outputting duplicate dates and times.
I have no problem doing the actual date and time parsing, so I am currently outputting June 6, 2012; 10:45 with no issue, but it is being duplicated each time due to the for-each, as follows:
June 6, 2012
10:45-12:45
Session 1: Presentation 1, Presentation 2
June 6, 2012
10:45-12:45
Session 2: Presentation 3, Presentation 4
June 7, 2012:
8:45-10:45
Session 3: Presentation 5, Presentation 6
What I would like is to somehow pull out all common datetimes, for instance, get output like:
June 6, 2012:
10:45-12:45
Session 1: Presentation 1, Presentation 2
Session 2: Presentation 3, Presentation 4
June 7, 2012:
8:45-10:45
Session 3: Presentation 5, Presentation 6
For reference, here is my current implementation:
<xsl:for-each select="session">
<h4>
<!-- output to Month, DD, YYYY -->
<xsl:call-template name="formatDate">
<xsl:with-param name="dateTime" select="@starttime" />
</xsl:call-template>
</h4>
<h5>
<!-- output time -->
<xsl:call-template name="formatTime">
<xsl:with-param name="dateTime" select="@starttime" />
</xsl:call-template> -
<xsl:call-template name="formatTime">
<xsl:with-param name="dateTime" select="@endtime" />
</xsl:call-template>
</h5>
<!-- session title -->
<h5><xsl:value-of select="@name"/></h5>
<!-- presentation title -->
<xsl:for-each select="presentation">
<xsl:value-of select="@name"/><xsl:element name="br"/>
</xsl:for-each>
</xsl:for-each>
And the date-time formatter:
<!-- formatting dateTime -->
<xsl:template name="formatDate">
<xsl:param name="dateTime" />
<xsl:variable name="date" select="substring-before($dateTime, ' ')" />
<xsl:variable name="year" select="substring-before($date, '-')" />
<xsl:variable name="month" select="number(substring-before(substring-after($date, '-'), '-'))" />
<xsl:variable name="day" select="number(substring-after(substring-after($date, '-'), '-'))" />
<!-- output -->
<xsl:choose>
<xsl:when test="$month = '1'">January</xsl:when>
<xsl:when test="$month = '2'">February</xsl:when>
<xsl:when test="$month = '3'">March</xsl:when>
<xsl:when test="$month = '4'">April</xsl:when>
<xsl:when test="$month = '5'">May</xsl:when>
<xsl:when test="$month = '6'">June</xsl:when>
<xsl:when test="$month = '7'">July</xsl:when>
<xsl:when test="$month = '8'">August</xsl:when>
<xsl:when test="$month = '9'">September</xsl:when>
<xsl:when test="$month = '10'">October</xsl:when>
<xsl:when test="$month = '11'">November</xsl:when>
<xsl:when test="$month = '12'">December</xsl:when>
</xsl:choose>
<xsl:value-of select="' '" />
<xsl:value-of select="$day" />
<xsl:value-of select="', '" />
<xsl:value-of select="$year" />
</xsl:template>
<!-- formatting dateTime -->
<xsl:template name="formatTime">
<xsl:param name="dateTime" />
<xsl:value-of select="substring-after($dateTime, ' ')" />
</xsl:template>
You want to group using the Muenchian method. Add this immediately inside the root element of your stylesheet:
<xsl:key name="sessions-by-track-name-starttime-and-endtime" match="/track/session" use="concat(parent::track/@name, ' ', @starttime, ' ', @endtime)"/>
Then update your XSLT as shown:
<xsl:for-each select="session[generate-id() = generate-id(key('sessions-by-track-name-starttime-and-endtime', concat(parent::track/@name, ' ', @starttime, ' ', @endtime))[1])]">
<h4>
<!-- output to Month, DD, YYYY -->
<xsl:call-template name="formatDate">
<xsl:with-param name="dateTime" select="@starttime" />
</xsl:call-template>
</h4>
<h5>
<!-- output time -->
<xsl:call-template name="formatTime">
<xsl:with-param name="dateTime" select="@starttime" />
</xsl:call-template> -
<xsl:call-template name="formatTime">
<xsl:with-param name="dateTime" select="@endtime" />
</xsl:call-template>
</h5>
<xsl:for-each select="key('sessions-by-track-name-starttime-and-endtime', concat(parent::track/@name, ' ', @starttime, ' ', @endtime))">
<!-- session title -->
<h5><xsl:value-of select="@name"/></h5>
<!-- presentation title -->
<xsl:for-each select="presentation">
<xsl:value-of select="@name"/><xsl:element name="br"/>
</xsl:for-each>
</xsl:for-each>
</xsl:for-each>
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