# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1634743884 -7200
# Node ID 8890eaa6944614f2a1feef8bdbdd07cafb8ab92f
# Parent  b605cbd5f13b06632490398808db993a8b60b297
mod_pubsub: Prevent max_items from being set to zero

Disable persistence instead if no items should be persisted.

XEP-0060 is not entirely clear on what either of those option really
mean.

diff -r b605cbd5f13b -r 8890eaa69446 plugins/mod_pubsub/pubsub.lib.lua
--- a/plugins/mod_pubsub/pubsub.lib.lua	Tue Oct 19 18:11:50 2021 +0200
+++ b/plugins/mod_pubsub/pubsub.lib.lua	Wed Oct 20 17:31:24 2021 +0200
@@ -86,6 +86,7 @@
 		type = "text-single";
 		datatype = "pubsub:integer-or-max";
 		name = "max_items";
+		range_min = 1;
 		var = "pubsub#max_items";
 		label = "Max # of items to persist";
 	};
diff -r b605cbd5f13b -r 8890eaa69446 spec/scansion/pubsub_config.scs
--- a/spec/scansion/pubsub_config.scs	Tue Oct 19 18:11:50 2021 +0200
+++ b/spec/scansion/pubsub_config.scs	Wed Oct 20 17:31:24 2021 +0200
@@ -48,7 +48,9 @@
 					<field var="pubsub#description" label="Description" type="text-single"/>
 					<field var="pubsub#type" label="The type of node data, usually specified by the namespace of the payload (if any)" type="text-single"/>
 					<field var="pubsub#max_items" label="Max # of items to persist" type="text-single">
-						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+							<range min="1"/>
+						</validate>
 						<value>1</value>
 					</field>
 					<field var="pubsub#persist_items" label="Persist items to storage" type="boolean">
@@ -136,7 +138,9 @@
 					<field var="pubsub#description" type="text-single" label="Description"/>
 					<field var="pubsub#type" type="text-single" label="The type of node data, usually specified by the namespace of the payload (if any)"/>
 					<field var="pubsub#max_items" type="text-single" label="Max # of items to persist">
-						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+							<range min="1"/>
+						</validate>
 						<value>1</value>
 					</field>
 					<field var="pubsub#persist_items" type="boolean" label="Persist items to storage">
diff -r b605cbd5f13b -r 8890eaa69446 spec/scansion/pubsub_max_items.scs
--- a/spec/scansion/pubsub_max_items.scs	Tue Oct 19 18:11:50 2021 +0200
+++ b/spec/scansion/pubsub_max_items.scs	Wed Oct 20 17:31:24 2021 +0200
@@ -43,7 +43,9 @@
 		<field var="pubsub#description" label="Description" type="text-single"/>
 		<field var="pubsub#type" label="The type of node data, usually specified by the namespace of the payload (if any)" type="text-single"/>
 		<field var="pubsub#max_items" label="Max # of items to persist" type="text-single">
-		  <validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+			<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+				<range min="1"/>
+			</validate>
 		  <value>20</value>
 		</field>
 		<field var="pubsub#persist_items" label="Persist items to storage" type="boolean">
diff -r b605cbd5f13b -r 8890eaa69446 spec/scansion/pubsub_multi_items.scs
--- a/spec/scansion/pubsub_multi_items.scs	Tue Oct 19 18:11:50 2021 +0200
+++ b/spec/scansion/pubsub_multi_items.scs	Wed Oct 20 17:31:24 2021 +0200
@@ -43,7 +43,9 @@
 		<field var="pubsub#description" label="Description" type="text-single"/>
 		<field var="pubsub#type" label="The type of node data, usually specified by the namespace of the payload (if any)" type="text-single"/>
 		<field var="pubsub#max_items" label="Max # of items to persist" type="text-single">
-		  <validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+			<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+				<range min="1"/>
+			</validate>
 		  <value>20</value>
 		</field>
 		<field var="pubsub#persist_items" label="Persist items to storage" type="boolean">
diff -r b605cbd5f13b -r 8890eaa69446 spec/scansion/pubsub_preconditions.scs
--- a/spec/scansion/pubsub_preconditions.scs	Tue Oct 19 18:11:50 2021 +0200
+++ b/spec/scansion/pubsub_preconditions.scs	Wed Oct 20 17:31:24 2021 +0200
@@ -47,7 +47,9 @@
 					<field var="pubsub#description" label="Description" type="text-single"/>
 					<field var="pubsub#type" label="The type of node data, usually specified by the namespace of the payload (if any)" type="text-single"/>
 					<field var="pubsub#max_items" label="Max # of items to persist" type="text-single">
-						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+							<range min="1"/>
+						</validate>
 						<value>1</value>
 					</field>
 					<field var="pubsub#persist_items" label="Persist items to storage" type="boolean">
@@ -135,7 +137,9 @@
 					<field var="pubsub#description" type="text-single" label="Description"/>
 					<field var="pubsub#type" type="text-single" label="The type of node data, usually specified by the namespace of the payload (if any)"/>
 					<field var="pubsub#max_items" type="text-single" label="Max # of items to persist">
-						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max"/>
+						<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
+							<range min="1"/>
+						</validate>
 						<value>1</value>
 					</field>
 					<field var="pubsub#persist_items" type="boolean" label="Persist items to storage">