Multiple <depends> parameters in widget.xml not allowed

[milansimek]

Preconditions

1. Install Magento 2.x
2. Create custom module

Steps to reproduce

1. Create a widget.xml in your custom module and add a widget
2. Create a parameter (field) inside parent tag widgets>widget>parameters with a <depends> tag, making it depend on the value of two other parameters as follows:

<parameter name="myfield" xsi:type="text" required="true" visible="true">
      <label translate="true">Example</label>
      <depends>
          <parameter name="dependency_one" value="1"/>
          <parameter name="dependency_two" value="1"/>
      </depends>
</parameter>

Expected result

1. The field should be shown only when both dependencies are met

Actual result

Way to fix

Update magento/module-widget/etc/widget.xsd and magento/module-widget/etc/widget_file.xsd

In the bottom of the files change this:

    <xs:complexType name="dependsType">
        <xs:annotation>
            <xs:documentation>List of parameters this parameter depends on.</xs:documentation>
        </xs:annotation>
        <xs:all>
            <xs:element name="parameter" type="dependsParameterType" />
        </xs:all>
    </xs:complexType>

Into this:

    <xs:complexType name="dependsType">
        <xs:annotation>
            <xs:documentation>List of parameters this parameter depends on.</xs:documentation>
        </xs:annotation>
        <xs:sequence maxOccurs="unbounded" minOccurs="1">
            <xs:element name="parameter" type="dependsParameterType" />
        </xs:sequence>
    </xs:complexType>

[veloraven]

@milansimek thank you for your report.
Please identify which version of Magento you are running.

[milansimek]

Magento 2.x

[allanpaiste]

This was issue in both 2.0 and 2.1, we've been using patch to fix this => https://github.com/allanpaiste/magento2-patches/blob/master/Magento_Widget-fix-support-for-multiple-parameter-dependencies.patch

[magento-engcom-team]

@milansimek, thank you for your report.
We've created internal ticket(s) MAGETWO-75743 to track progress on the issue.