Create loops for flow control.
<isloop
(items = item_object ) | (iterator = iter_object) //required
(alias = alias_name) | (var = var_name)
status = status_name
begin = start_index
end = stop_index
step = increment_index
...
</isloop>
Allowed data type: expression.
items = item_object
item_object
is an
expression that returns an object to iterate over. Attributes
iterator and items can be used
interchangeably.
iterator = iter_object
iter_object
is an expression that returns an object to iterate
over. Attributes iterator and items can be used
interchangeably.
items
is preferred.
Name of the variable referencing the object in the iterable collection referenced in the current iteration.
alias = alias_name
alias_name
is the name of
a variable referencing the object in the iterable collection
referenced in the current iteration.
var = var_name
var_name
is
the name of a variable referencing the object in the iterable
collection referenced in the current iteration.
var is preferred.
status_name
is the variable name referencing
the loop status object. The loop status is used to query information
such as the counter or whether it's the first item.
If status is specified, a loop status object is assigned to the given variable name. Below are the properties of the loop status object:
Attribute | Description |
---|---|
count | The number of iterations, starting with 1. |
index | The current index into the set of items, while iterating. |
first | True, if this is the first item while iterating (count == 1). |
last | True, if this is the last item while iterating. |
odd | True, if count is an odd value. |
even | True, if count is an even value. |
Allowed data type: expression.
start_index
is an expression
specifying a begin index for the loop. If the begin is greater than
0, the <isloop> skips the first x items and starts looping at
the begin index. If begin is smaller than 0, 0 is used as the begin
value.
Allowed data type: expression.
stop_index
is an expression
specifying an end index (inclusive). If end is smaller than begin,
the <isloop>
is skipped.
Allowed data type: expression.
increment_index
is an
expression specifying the step used to increase the index. If step
is smaller than one, one is used as the step value.
With
<isloop>
you can loop through the elements of a
specified iterator. As an example, you can list data like categories,
products, shipping and payment methods. <isloop>
statements can be nested in one another.
<isbreak>
to
unconditionally terminate a loop.<isnext>
to
jump forward in a loop<isloop iterator = "${pdict.Basket.products}" alias = "product">
<isprint value = "${product.name}"> <BR>
</isloop>