Merging develop to master in preparation for 2.8.0 release.

Author: weierophinney

.travis.yml

@@ -2,28 +2,14 @@ sudo: false
 
 language: php
 
-branches:
-  except:
-    - /^release-\d+\.\d+\.\d+.*$/
-    - /^ghgfk-.*$/
-
 cache:
   directories:
     - $HOME/.composer/cache
-    - vendor
-    - $HOME/.local
-    - zf-mkdoc-theme
 
 env:
   global:
     - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="satooshi/php-coveralls"
-    - LEGACY_DEPS="phpunit/phpunit"
-    - SITE_URL: https://zendframework.github.io/zend-inputfilter
-    - GH_USER_NAME: "Matthew Weier O'Phinney"
-    - GH_USER_EMAIL: [email protected]
-    - GH_REF: github.com/zendframework/zend-inputfilter.git
-    - secure: "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"
 
 matrix:
   include:
@@ -33,10 +19,7 @@ matrix:
     - php: 5.6
       env:
         - DEPS=locked
-        - CS_CHECK=true
-        - TEST_COVERAGE=true
-        - DEPLOY_DOCS="$(if [[ $TRAVIS_BRANCH == 'master' && $TRAVIS_PULL_REQUEST == 'false' ]]; then echo -n 'true' ; else echo -n 'false' ; fi)"
-        - PATH="$HOME/.local/bin:$PATH"
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 5.6
       env:
         - DEPS=latest
@@ -46,60 +29,48 @@ matrix:
     - php: 7
       env:
         - DEPS=locked
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 7
       env:
         - DEPS=latest
-        - TEST_COVERAGE=true
     - php: 7.1
       env:
         - DEPS=lowest
     - php: 7.1
       env:
         - DEPS=locked
+        - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.1
       env:
         - DEPS=latest
-    - php: hhvm
+    - php: 7.2
       env:
         - DEPS=lowest
-    - php: hhvm
+    - php: 7.2
       env:
         - DEPS=locked
-    - php: hhvm
+    - php: 7.2
       env:
         - DEPS=latest
-  allow_failures:
-    - php: hhvm
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
 
 install:
   - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
-  - if [[ $TRAVIS_PHP_VERSION =~ ^5.6 ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
+  - if [[ $LEGACY_DEPS != '' ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
-  - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
+  - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update $COMPOSER_ARGS --prefer-lowest --prefer-stable ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi
-  - stty cols 120
-  - COLUMNS=120 composer show
+  - stty cols 120 && composer show
 
 script:
-  - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; fi
-  - if [[ $TEST_COVERAGE != 'true' ]]; then composer test ; fi
+  - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; else composer test ; fi
   - if [[ $CS_CHECK == 'true' ]]; then composer cs-check ; fi
-  - if [[ $DEPLOY_DOCS == "true" && "$TRAVIS_TEST_RESULT" == "0" ]]; then wget -O theme-installer.sh "https://raw.githubusercontent.com/zendframework/zf-mkdoc-theme/master/theme-installer.sh" ; chmod 755 theme-installer.sh ; ./theme-installer.sh ; fi
-
-after_success:
-  - if [[ $DEPLOY_DOCS == "true" ]]; then echo "Preparing to build and deploy documentation" ; ./zf-mkdoc-theme/deploy.sh ; echo "Completed deploying documentation" ; fi
 
 after_script:
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer upload-coverage ; fi
 
 notifications:
   email: false
-  slack:
-    rooms:
-      - secure: "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"
-    on_success: change
-    on_failure: always

CHANGELOG.md

@@ -2,11 +2,18 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.7.6 - 2017-12-04
+## 2.8.0 - TBD
 
 ### Added
 
-- Nothing.
+- [#135](https://github.com/zendframework/zend-inputfilter/pull/135) adds
+  `Zend\InputFilter\OptionalInputFilter`, which allows defining optional sets of
+  data. This acts like a standard input filter, but is considered valid if no
+  data, `null` data, or empty data sets are provided to it; if a non-empty data
+  set is provided, it will run normal validations.
+
+- [#142](https://github.com/zendframework/zend-inputfilter/pull/142) adds
+  support for PHP 7.2.
 
 ### Changed
 
@@ -18,6 +25,25 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Removed
 
+- [#142](https://github.com/zendframework/zend-inputfilter/pull/142) removes
+  support for HHVM.
+
+### Fixed
+
+- Nothing.
+
+## 2.7.6 - 2017-12-04
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
 - Nothing.
 
 ### Fixed

composer.json

@@ -32,7 +32,7 @@
         "php": "^5.6 || ^7.0",
         "zendframework/zend-filter": "^2.6",
         "zendframework/zend-stdlib": "^2.7 || ^3.0",
-        "zendframework/zend-validator": "^2.6"
+        "zendframework/zend-validator": "^2.10.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7.23 || ^6.4.3",

composer.lock

@@ -0,0 +1,98 @@
+# Optional Input Filters
+
+- Since 2.8.0
+
+Normally, input filters are _required_, which means that if you compose them as
+a subset of another input filter (e.g., to validate a subset of a larger set of
+data), and no data is provided for that item, or an empty set of data is
+provided, then the input filter will consider the data invalid.
+
+If you want to allow a set of data to be empty, you can use 
+`Zend\InputFilter\OptionalInputFilter`.
+
+To illustrate this, let's consider a form where a user provides profile
+information. The user can provide an optional "title" and a required "email",
+and _optionally_ details about a project they lead, which will include the
+project title and a URL, both of which are required if present.
+
+First, let's create an `OptionalInputFilter` instance for the project data:
+
+```php
+$projectFilter = new OptionalInputFilter();
+$projectFilter->add([
+    'name' => 'project_name',
+    'required' => true,
+]);
+$projectFilter->add([
+    'name' => 'url',
+    'required' => true,
+    'validators' => [
+        ['type' => 'uri'],
+    ],
+]);
+```
+
+Now, we'll create our primary input filter:
+
+```php
+$profileFilter = new InputFilter();
+$profileFilter->add([
+    'name' => 'title',
+    'required' => false,
+]);
+$profileFilter->add([
+    'name' => 'email',
+    'required' => true,
+    'validators' => [
+        ['type' => 'EmailAddress'],
+    ],
+]);
+
+// And, finally, compose our project sub-filter:
+$profileFilter->add($projectFilter, 'project');
+```
+
+With this defined, we can now validate the following sets of data, presented in
+JSON for readability:
+
+- Just profile information:
+
+  ```json
+  {
+    "email": "[email protected]",
+    "title": "Software Developer"
+  }
+  ```
+
+- `null` project provided:
+
+  ```json
+  {
+    "email": "[email protected]",
+    "title": "Software Developer",
+    "project": null
+  }
+  ```
+
+- Empty project provided:
+
+  ```json
+  {
+    "email": "[email protected]",
+    "title": "Software Developer",
+    "project": {}
+  }
+  ```
+
+- Valid project provided:
+
+  ```json
+  {
+    "email": "[email protected]",
+    "title": "Software Developer",
+    "project": {
+      "project_name": "zend-inputfilter",
+      "url": "https://github.com/zend-inputfilter",
+    }
+  }
+  ```

docs/book/optional-input-filters.md

@@ -3,8 +3,10 @@ site_dir: docs/html
 pages:
     - index.md
     - Intro: intro.md
-    - Specifications: specs.md
-    - Files: file-input.md
+    - Reference:
+      - Specifications: specs.md
+      - Files: file-input.md
+      - "Optional Input Filters": optional-input-filters.md
 site_name: zend-inputfilter
 site_description: zend-inputfilter
 repo_url: 'https://github.com/zendframework/zend-inputfilter'

mkdocs.yml

@@ -28,11 +28,14 @@ class InputFilterPluginManager extends AbstractPluginManager
      * @var string[]
      */
     protected $aliases = [
-        'inputfilter' => InputFilter::class,
-        'inputFilter' => InputFilter::class,
-        'InputFilter' => InputFilter::class,
-        'collection'  => CollectionInputFilter::class,
-        'Collection'  => CollectionInputFilter::class,
+        'inputfilter'         => InputFilter::class,
+        'inputFilter'         => InputFilter::class,
+        'InputFilter'         => InputFilter::class,
+        'collection'          => CollectionInputFilter::class,
+        'Collection'          => CollectionInputFilter::class,
+        'optionalinputfilter' => OptionalInputFilter::class,
+        'optionalInputFilter' => OptionalInputFilter::class,
+        'OptionalInputFilter' => OptionalInputFilter::class,
     ];
 
     /**
@@ -43,9 +46,11 @@ class InputFilterPluginManager extends AbstractPluginManager
     protected $factories = [
         InputFilter::class                      => InvokableFactory::class,
         CollectionInputFilter::class            => InvokableFactory::class,
+        OptionalInputFilter::class              => InvokableFactory::class,
         // v2 canonical FQCN
         'zendinputfilterinputfilter'            => InvokableFactory::class,
         'zendinputfiltercollectioninputfilter'  => InvokableFactory::class,
+        'zendinputfilteroptionalinputfilter'    => InvokableFactory::class,
     ];
 
     /**