Skip to main content

XSLT apply import tag by pran sukh on python hunter blog

Modular Programming is good attitude of best programmer. We often need to keep our code in modular approach so that is would be easy to maintain  and update or remove dead code and also it ease the process of bug tracking. XML and XSL processors provide freedom to import multiple imports to process the same XML document.

In the following XML data we have data from collage where student's and teacher's data is given. But we want to process the same XML data with different XSL files. Here in this example we want to show the teacher data in red background color and student data in green background color.


Data.xml

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
<?xml version = "1.0"?>
<?xml-stylesheet type = "text/xsl" href = "RootXSLT.xsl"?>
<data>
 <DataFor name = "Student" id = "001" > 
   <firstname>Dave</firstname>   
      <lastname>Walmod</lastname>   
      <nickname>Devi</nickname>   
      <course>30000</course>  
   </DataFor>   
   <DataFor name = "Student" id = "024" >   
      <firstname>Sara</firstname>   
      <lastname>Khan</lastname>   
      <nickname>Zoya</nickname>   
      <course>25000</course>  
   </DataFor>   
   <DataFor name = "Student" id = "056" >   
      <firstname>Peter</firstname>   
      <lastname>Symon</lastname>   
      <nickname>John</nickname>   
      <course>10000</course>   
   </DataFor> 
   
   <DataFor name = "Teacher" eCode = "0563">
    <firstname>Jevy</firstname>   
       <lastname>Symon</lastname>   
       <nickname>Jevy</nickname>   
       <salary>10000</salary> 
   </DataFor>
   
   <DataFor name = "Teacher" eCode = "0565">
    <firstname>Sonia</firstname>   
       <lastname>WillWood</lastname>   
       <nickname>Willy</nickname>   
       <salary>10000</salary> 
   </DataFor>
</data>



RootXSLT.xsl
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
<?xml version = "1.0" encoding = "UTF-8"?>   
<xsl:stylesheet version = "1.0"   
   xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">    
   <xsl:import href = "MainStyleSheet_Student.xsl"/>   
   <xsl:import href = "MainStyleSheet_Teacher.xsl"/>
   
   <xsl:template match = "/"> 
   
 <html>
         <body>
            <h2>Collage Data</h2>
            <table border="1">
               <tr bgcolor="#9acd32">
                  <th>ID</th>
                  <th>First Name</th>
                  <th>Last Name</th>
                  <th>Nick Name</th>
                  <th>Course or Salary</th>
    <th>Entity Type</th>
               </tr>   
      
      <xsl:apply-imports/>   
   
     </table>
         </body>
      </html>
   
   </xsl:template>  
 
</xsl:stylesheet> 










MainStyleSheet_Student.xsl
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<!-- xsl template declaration: template tells the xlst processor about the section of xml document which is to be formatted. 
It takes an XPath expression. In our case, it is matching document XPath expression attribute name == Student  and will tell processor to process the entire document with this template. -->

<!-- for-each processing instruction Looks for each DataFor element matching the XPath expression attribute name == Student -->
               <xsl:template match="DataFor[@name='Student']">
                  <tr>
                     <td>
                        <xsl:value-of select="@id" />
       </td>
                     <td>
   <xsl:value-of select="firstname" />
       </td>
                     <td>
                        <xsl:value-of select="lastname" />
                     </td>
                     <td>
                        <xsl:value-of select="nickname" />
                     </td>
                     <td>
                        <xsl:value-of select="course" />
                     </td>
       <td style="background:red;color:white">
                        <xsl:value-of select="@name" />
                     </td>
            </tr>
  </xsl:template>

</xsl:stylesheet>



MainStyleSheet_Teacher.xsl
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 <xsl:template match="DataFor[@name='Teacher']">
     
<!-- for-each processing instruction Looks for each DataFor element matching the XPath expression attribute name == Student -->
              
                  <tr>
                     <td>
                       <xsl:value-of select="@eCode" />
       </td>
                     <td>
         <xsl:value-of select="firstname"/>
       </td>
                     <td>
                        <xsl:value-of select="lastname" />
                     </td>
                     <td>
                        <xsl:value-of select="nickname" />
                     </td>
                     <td>
                        <xsl:value-of select="salary" />
                     </td>
       <td style="background:green;color:white">
                        <xsl:value-of select="@name" />
                     </td>
     
                  </tr>
 </xsl:template>
</xsl:stylesheet>

Explanation:- 
The RootXSLT.xsl has imported  MainStyleSheet_Teacher.xsl and MainStyleSheet_Student.xsl, the XSLT process will read both XSL files and apply template where the condition <xsl:template match="DataFor[@name='CONDITION_VALUE']"> is met.
The MainStyleSheet_Teacher.xsl will be applied when XSLT processor fetches the <DataFor> tag with attribute name "name" = "Teacher" and this same logic is used in MainStyleSheet_Student.xsl when <DataFor> tag with attribute name "name" = "Student" is fetched.
Thanks.......
Stay tuned for upcoming tutorials on processing XML with XLST.
Last update (26-April-2018).......
Labels:

Comments

Post a Comment

Thanks in anticipation.

Popular posts from this blog

Understanding the usage of underscore( _ ) of Python for beginner. On Python Hunter

Introduction: Just like you, a newbie in python scripting language, me too was confused about lot of new things in python that are not valid or available in other languages like Java, .Net etc. Just like other things i had seen the use of '_' underscore in python, at beginning level that flabbergasted me for a while.      With some research and practice i have summarised the following usage of '_' underscore in python. Hope you will find it helpful at beginning level. First Usage : Hold the previous output value. When used in interpreter. 1 2 3 4 5 6 7 _ = input () # For example you typed '5' print (_) # This will print '5' print ( int ( _ ) * int ( _ ) ) # This will print '25' print ( int ( _ ) + 10 ) The above will print '15', because last input was "5" and in above   line of code is producing '25' as output but not being handl...
7 comments
Read more

regex in python python hunter

Regular Expressions is a powerful concept if understood clearly you can save your valuable time to extract out the particular text from huge string or paragraph. It is wildly pronounced as regex, it can help you to automate the boring stuff, like searching particular text form log files, python used this same concept in web scrapping. Below are some common examples to understand the regex. Method names will help you to have an idea that what exactly the regex is intended to do. if you don't understand any regex or want to create your own regex with your requirements then you can comment below, i'll reach you ASAP. Thanks. import re def phoneNumberPattern (): print ( "*" * 10 ) print ( "phoneNumberPattern()" ) regexObj = re . compile( r'\d\d\d-\d\d\d-\d\d\d\d' ) mo = regexObj . search( 'Find my phone number from this string 998-805-4332' ) print (mo . group()) def grouping (): print ( "*...
Post a Comment
Read more

XSLT applyTemeplate tag by pran sukh on Python Hunter.

XSLT is used for presenting XML data in well structured way and in eye appealing sense. In XSLT we can define different templates and maintain criteria for XSLT processor to parse the XML data in and apply different template for different XML tags. Lets examine following example XML DATA. 1 2 3 4 5 6 7 8 9 10 <student id= "1" eCode= "e1" > <firstName> Python 1 </firstName> <lastName> Hunert 1 </lastName> <dob> <day> 01 </day> <month> Jan </month> <year> 1991 </year> </dob> <course> Programmer </course> </student> In above XML data we want to present student id with dark background and eCode with red background colors, First Name in blue color, last name in green color and date of birth in different modes, so it will look like this. Source File:- XML_DATA.xml 1 2 3 4 5 6 7 8 9 10 ...
1 comment
Read more