logo
down
shadow

In freemarker is it possible to check to see if a file exists before including it?


In freemarker is it possible to check to see if a file exists before including it?

By : user3864790
Date : January 10 2021, 01:49 PM
will help you We are trying to build a system in freemarker where extension files can be optionally added to replace blocks of the standard template. , easier solution would be:
code :


Share : facebook icon twitter icon
How can you check if a file exists before including/importing it in JSP?

How can you check if a file exists before including/importing it in JSP?


By : Nevermore
Date : March 29 2020, 07:55 AM
To fix the issue you can do Put it in a c:catch tag. It will catch any thrown Exception for you.
code :
<c:catch var="e">
    <c:import url="${url}" />
</c:catch>
<c:if test="${!empty e}">
    Error: ${e.message}
</c:if>
Check if file exists, including on PATH

Check if file exists, including on PATH


By : Bill
Date : March 29 2020, 07:55 AM
wish of those help Ended up having to set the FD_CLOEXEC flag on a new pipe and writing an error message through it after the exec if it had failed. I could then read the error message from the parent and determine whether exec was successful or not.
for your effort though guys, upvoted for the help
check if class exists within file without requiring/including

check if class exists within file without requiring/including


By : user3654256
Date : March 29 2020, 07:55 AM
this will help Is there a way to check if class exists within a file without including/requiring the class?
code :
$tokens = token_get_all(file_get_contents('foo.php'));
Freemarker check if variable exists and is different than zero

Freemarker check if variable exists and is different than zero


By : Andrew Reilly
Date : March 29 2020, 07:55 AM
this one helps. ${something.id!} can help me check the variable exists. But what if I also want to check if it is not 0?
code :
[#if something.id?? && something.id!=0]
   ${something.id}
[/#if]
<#if something.id?? && something.id!=0>
  ${something.id}
</#if>
check is json key exists or not in freemarker

check is json key exists or not in freemarker


By : diwahar
Date : March 29 2020, 07:55 AM
wish of those help You should add "??" so it will check if fitbit_profile_set exists and not null
<#if notes.fitbit_profile_set??>
Related Posts Related Posts :
  • how to create a custom login page in salesforce.com?
  • Why does MPI_Init accept pointers to argc and argv?
  • How to create a Turing machine that takes a single digit decimal number from 0 - 9 and output the cube
  • Windbg + IDA: calculate an address in a module
  • Swing Panel Question
  • Spring-ws client from WSDL
  • New or not so well-known paradigms, syntax features and behaviours of programming languages?
  • How do I build a J2EE EAR file in RAD using Maven?
  • JPEG image with alpha channel on website
  • Graphics/Vision Interesting Topics
  • Code golf: the Mandelbrot set
  • ASP Classic Session Variable Not Always Getting Set
  • Install avisynth under Linux via SSH
  • Drupal Views display newest content per taxonomy limit to one node
  • ejabberd component port
  • How to split table to new PowerPoint slide when content flows off current slide using Open XML SDK 2.0
  • How to Suppress Gendarme Defects?
  • Given a WAV file, its file size and sample rate, is it possible to calculate the sample count?
  • how can a Win32 App plugin load its DLL in its own directory
  • Specification Pattern and Boolean Operator Precedence
  • Building your own Interpreter that can function as a compiler
  • Static analysis framework for eclipse?
  • unable to read serialized data as message body in msmq c# 3.0
  • Planning Large Projects?
  • LaTeX - Changing the font size for a document, but in the preamble, not the document class?
  • Run Time for Linear Probing on Hash table
  • TF255440 error on configuring TFS 2010 upgrade from RC to RTM
  • I have a VSTO application as an add-in to MS Word and I want to set keyboard shortcuts to the ribbon buttons
  • Way to reduce size of .ttf fonts?
  • ASP.net 4.0 default.aspx problem on IIS6
  • XNA: How to convert a game to be compatible with the Xbox 360?
  • Inheritance of list-style-type property in Firefox (bug in Firebug?)
  • Dealing with &rest-parameters in common lisp
  • Rendering sass template from a sinatra app doesn't work. Is this due to v.1 incompatibility? Workaround?
  • Is there an external public archive of Gitorious projects?
  • 3D Character/Model Creator
  • Algorithm for Negating Sentences
  • Starting from which integer is it better to switch to another product brand versioning scheme (year-based, codenames, ..
  • The unmentioned parts of COBOL's history
  • Help me with this COUNT query for a php file
  • How does one add an "id" attribute to Html.LabelFor() in ASP.NET MVC2?
  • What's the most effective way to interpolate between two colors? (pseudocode and bitwise ops expected)
  • mod_rewrite vs php parsing
  • problem in using appendchild in IE7
  • How does FlockDB compare with neo4j?
  • boost library gives errors on ubuntu
  • How to develop a web application in alfresco?
  • Developing an app with Camera Access and GPS
  • generalizing the pumping lemma for UNIX-style regular expressions
  • detecting pauses in a spoken word audio file using pymad, pcm, vad, etc
  • 2D Inverse Kinematics Implementation
  • Derivative of a program
  • CUDA: How to reuse kernels in multiple files (for unit testing)
  • windows mobile cab file launch main executable when complete
  • SSRS Data Driven Subscriptions and Email Bounce Backs
  • Parsing unicode character (0x2) using XML1.1
  • Mobile Handset Detection
  • How to stream image object in Sinatra
  • JNLP desktop shortcut creation with Windows 7 : "cannot create shortcut"
  • My OpenCL kernel is slower on faster hardware.. But why?
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk