CODEWITHSUNDEEP
freemarker
Daniel Gerson
Daniel Gerson

Reputation: 2209

Cannot list a hash on key-value pairs in Freemarker

What's wrong with the following template?

package ${packageName}

public interface ${entityName} {

<#list methods as methodName, map >
public void ${methodName}(${map}) ;
</#list>

}

which gives on version 2.3.23:

freemarker.core.ParseException: Syntax error in template "javaclass.ftl" in line 5, column 29:
Encountered ",", but was expecting:
    ">"
    at freemarker.core.FMParser.generateParseException(FMParser.java:5251)
    at freemarker.core.FMParser.jj_consume_token(FMParser.java:5122)
    at freemarker.core.FMParser.List(FMParser.java:1431)
    at freemarker.core.FMParser.FreemarkerDirective(FMParser.java:2827)
    at freemarker.core.FMParser.MixedContent(FMParser.java:3081)
    at freemarker.core.FMParser.OptionalBlock(FMParser.java:3253)
    at freemarker.core.FMParser.Root(FMParser.java:3432)
    at freemarker.template.Template.<init>(Template.java:208)
    at freemarker.cache.TemplateCache.loadTemplate(TemplateCache.java:495)

The documentation gives the following example for a hash structure

Listing hashes is very similar, but you need to provide two variable names after the as; one for the hash key, and another for the associated value. Assuming products is { "apple": 5, "banana": 10, "kiwi": 15 }:

<#list products as name, price>
  <p>${name}: ${price}
</#list>

  <p>apple: 5
  <p>banan: 10
  <p>kiwi: 15

Note that my example is before submitting content.

Upvotes: 4

Views: 1876

Answers (1)

Jasper de Vries
Jasper de Vries

Reputation: 20243

That is expected since listing key-value was added in 2.3.25.

http://freemarker.org/docs/ref_directive_list.html#ref.directive.list

... and to list the key-value pairs of a hash (since 2.3.25):

<#list hash as key, value>
  Part repeated for each key-value pair
</#list>

So, upgrade if you can or rewrite your list.

See also:

Upvotes: 2

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