Как я могу нумерации страниц ColdFusion записей в cfscript

Question

Я хочу, чтобы карапуз сделать эквивалент:

<cfoutput query="queryName" startow="startrow" maxrows="maxrows"> 
    ...... 
</cfoutput> 

с использованием cfscript.

Мой код до сих пор (в функции) является:

_sqlStatement = 'SELECT first_name, surname, mail_address 
     FROM usersTable 
     WHERE 1=1 
     AND first_name LIKE :searchText 
     OR  surname LIKE :searchText 
     OR  mail_address LIKE :searchText 
     ORDER BY #arguments.sortname# #arguments.sortorder#'; 

_qryGetUsers.setSQL(_sqlStatement); 
_qryGetUsers.addParam(name="searchText",value="%" & #arguments.searchText# & "%",cfsqltype="CF_SQL_varchar"); 
_qryGetUsers.setDatasource(myDataSourceName); 
qUsers = _qryGetUsers.execute().getResult(); 

//cfoutput equivalent 
for(x=_startRow; x LTE qUsers.recordcount; x++) 
{ 
     ...... 
} 

Спасибо.

Answer 1

В SQL Server 2012 можно использовать OFFSET и FETCH указать начальную строку и число строк соответственно

_sqlStatement = ' 
    DECLARE @OffsetRows tinyint = :offset 
    DECLARE @FetchRows tinyint = :fetch 

    SELECT first_name, surname, mail_address 
    FROM usersTable 
    WHERE 1=1 
    AND first_name LIKE :searchText 
    OR  surname LIKE :searchText 
    OR  mail_address LIKE :searchText 
    OFFSET @OffsetRows ROWS 
    FETCH NEXT @FetchRows ROWS ONLY 
    ORDER BY #arguments.sortname# #arguments.sortorder#'; 

см http://dbadiaries.com/new-t-sql-features-in-sql-server-2012-offset-and-fetch

Answer 2

Если вы просто хотите CFScript эквивалент:

qUsers = _qryGetUsers.execute().getResult(); 
_startrow=1; 
_maxrows=10; 

for(i=_startRow; i <= qUsers.recordcount && i - _startRow < _maxrows; i++) 
{ 
    writeOutput(qUsers.['name'][i] & "<br>"); 
} 

Если вы создаете HTML/XML, <cfloop query= в CFML будет проще и понятнее возможность.

Answer 3

Это не отличается в cfscript как простой coldfusion. Я даю вам представление о логике разбиения на страницы в холодном состоянии.

посмотреть код пагинацией ниже

<cfset limt = 50> 
<cfquery name="getCount" datasource="#application.datasource#"> 
    select COUNT(*) as cont from 
     ZIPCodes 
</cfquery> 

    <cfset PagAddress = "#CGI.PATH_INFO#"> 
<cfset totalRowsCount = getCount.cont> 
<cfparam name="pre" default="0">  
<!--- End category st atistics ---> 
<cfparam name="url.grp" default="1"> 
<!--- records to display per page ---> 
<cfset displayrow = 10> 
<!--- gets the number of pages ---> 
<cfset lop = (totalRowsCount\displayrow)> 
<cfif (totalRowsCount MOD displayrow) GTE 1> 
    <cfset lop = lop + 1> 
</cfif> 

<cfif isdefined("url.grp")> 
    <cfset startrows = ((url.grp - 1)*displayrow)+1> 
    <cfelse> 
    <cfset startrows = 1> 
</cfif> 
<cfset endrows = (startrows + displayrow)-1> 
<cfif endrows GTE totalRowsCount> 
    <cfset endrows = totalRowsCount> 
</cfif> 
<cfsavecontent variable="pagination_HTML"> 
<cfoutput> 

<div class="pagination_main_cls"> 
<div class="pagenation" style="width:800px;"> 
    <div class="jobs_days2"> 
     <cfif totalRowsCount GT 0><b>#startrows#&##45;#endrows#</b> of <b>#totalRowsCount#</b> Jobs  </cfif> 

</div> 
<div class="pagenation_numb" > 

    <cfif url.grp gt 1> 
     <cfset pre = url.grp -1> 
      <a href="#PagAddress#?grp=#pre#" title="Previous">&lt;Prev</a> 
    </cfif> 

    <cfset DisplayPageNumCount = 5> 

    <cfif #lop# LTE DisplayPageNumCount and #url.grp# LTE DisplayPageNumCount> 
     <cfset loop_from_val = 1> 
     <cfset loop_to_val = #lop#> 
    <cfelseif #lop# GT DisplayPageNumCount and #url.grp# LT DisplayPageNumCount>  
     <cfset loop_from_val = 1> 
     <cfset loop_to_val = DisplayPageNumCount> 
    <cfelse> 
     <cfset loop_from_val = #url.grp# - (DisplayPageNumCount-1)> 
     <cfset loop_to_val = #url.grp#> 
    </cfif> 

    <cfloop index="group" from="#loop_from_val#" to="#loop_to_val#"> 
     <cfif lop GT 1> 
     <!---<cfif url.grp is group>class="active"</cfif>---> 
      <cfif url.grp is group> 
       <a href="#PagAddress#?grp=#group#">#group#</a> 
      <cfelse>      
       [<a href="#PagAddress#?grp=#group#">#group#</a>] 
      </cfif> 
     </cfif> 
    </cfloop> 
    <cfif url.grp lt lop>  
     <cfif lop GT 1 AND lop gt DisplayPageNumCount>&hellip;</cfif> 
     <cfset nex = url.grp +1>   
      <a href="#PagAddress#?grp=#nex#" title="Next">Next &gt;</a>  
    </cfif> 
    </div>        
    </div> 
    </div> 

</cfoutput> 
</cfsavecontent> 


<cfquery name="getMember" datasource="#application.datasource#"> 
    SELECT * 
    FROM ( 
     SELECT ZIPCode, ZIPType, myrow = ROW_NUMBER() OVER (ORDER BY ZIPCode) 
     FROM   ZIPCodes 
     )p 
     WHERE myrow BETWEEN #startrows# AND #endrows# 
</cfquery> 


<table border="1" cellpadding="0" cellspacing="0" > 
    <tr> 
     <th>Count</th> 
     <th>ZIPCode</th> 
     <th>ZIPType</th> 
    </tr> 

    <cfoutput query="getMember" > 
     <tr>  
      <td>#myrow#</td> 
      <td style="width:80px; text-align:left"> 
       #ZIPCode#     
      </td> 
      <td style="width:600px; text-align:left"> 
       #ZIPType#      
      </td> 
     </tr> 
    </cfoutput> 

</table> 
<cfoutput> 
    #pagination_HTML# 
</cfoutput>