I am facing an issue on the edit page with the dynamic row. I added two dynamic row blocks. One block for global off days and one is for Postal code delay days. In both containers, I added a date picker to select a date. In the first container 'Global day off' is working fine while the second container not working in edit while values are saved in the database in sterilised form for both fields.
<?xml version="1.0" encoding="UTF-8"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
<argument name="data" xsi:type="array">
<item name="js_config" xsi:type="array">
<item name="provider" xsi:type="string">delivery_rule_form.delivery_rule_form_data_source</item>
<item name="deps" xsi:type="string">delivery_rule_form.delivery_rule_form_data_source</item>
</item>
<item name="label" xsi:type="string" translate="true">Rule Form</item>
<item name="layout" xsi:type="array">
<item name="type" xsi:type="string">tabs</item>
</item>
<item name="buttons" xsi:type="array">
<item name="back" xsi:type="array">
<item name="name" xsi:type="string">back</item>
<item name="label" xsi:type="string" translate="true">Back</item>
<item name="class" xsi:type="string">back</item>
<item name="url" xsi:type="string">*/*/</item>
</item>
<item name="save" xsi:type="array">
<item name="name" xsi:type="string">save</item>
<item name="label" xsi:type="string" translate="true">save</item>
<item name="class" xsi:type="string">primary</item>
</item>
</item>
</argument>
<dataSource name="delivery_rule_form_data_source">
<argument name="dataProvider" xsi:type="configurableObject">
<argument name="class" xsi:type="string">Ciklum\OrderDeliveryRules\Model\Rule\DataProvider</argument>
<argument name="name" xsi:type="string">delivery_rule_form_data_source</argument>
<argument name="primaryFieldName" xsi:type="string">id</argument>
<argument name="requestFieldName" xsi:type="string">id</argument>
</argument>
<argument name="data" xsi:type="array">
<item name="js_config" xsi:type="array">
<item name="component" xsi:type="string">Magento_Ui/js/form/provider</item>
<item name="submit_url" path="*/*/save" xsi:type="url"/>
</item>
</argument>
</dataSource>
<fieldset name="rule_fieldset">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="label" xsi:type="string" translate="true">Rule Information</item>
</item>
</argument>
<dynamicRows name="global_off_days">
<settings>
<label translate="true">Global Off Days</label>
<addButtonLabel translate="true">Add Date</addButtonLabel>
<dndConfig>
<param name="enabled" xsi:type="boolean">true</param>
<param name="draggableElementClass" xsi:type="string">_dragged</param>
<param name="tableClass" xsi:type="string">table.admin__dynamic-rows</param>
</dndConfig>
</settings>
<container name="record" component="Magento_Ui/js/dynamic-rows/record">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="isTemplate" xsi:type="boolean">true</item>
<item name="is_collection" xsi:type="boolean">true</item>
<item name="componentType" xsi:type="string">container</item>
</item>
</argument>
<field name="off_day">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="filter" xsi:type="string">dateRange</item>
<item name="dataType" xsi:type="string">date</item>
<item name="formElement" xsi:type="string">input</item>
<item name="component" xsi:type="string">Magento_Ui/js/form/element/date</item>
<item name="label" xsi:type="string" translate="true">Date</item>
<item name="dataScope" xsi:type="string">off_day</item>
<item name="disabled" xsi:type="boolean">false</item>
<item name="options" xsi:type="array">
<item name="dateFormat" xsi:type="string">y-MM-dd</item>
</item>
<item name="sortOrder" xsi:type="string">30</item>
</item>
</argument>
</field>
<actionDelete name="action_delete">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="fit" xsi:type="boolean">true</item>
<item name="prefixElementName" xsi:type="string">option_</item>
<item name="prefixName" xsi:type="string">Params.delete</item>
<item name="dataType" xsi:type="string">text</item>
</item>
</argument>
<settings>
<dataType>text</dataType>
<componentType>actionDelete</componentType>
</settings>
</actionDelete>
</container>
</dynamicRows>
<dynamicRows name="postal_code_delay_days">
<settings>
<label translate="true">Global Off Days</label>
<addButtonLabel translate="true">Add Date</addButtonLabel>
<dndConfig>
<param name="enabled" xsi:type="boolean">true</param>
<param name="draggableElementClass" xsi:type="string">_dragged</param>
<param name="tableClass" xsi:type="string">table.admin__dynamic-rows</param>
</dndConfig>
</settings>
<container name="record" component="Magento_Ui/js/dynamic-rows/record">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="isTemplate" xsi:type="boolean">true</item>
<item name="is_collection" xsi:type="boolean">true</item>
<item name="componentType" xsi:type="string">container</item>
</item>
</argument>
<field name="off_day">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="filter" xsi:type="string">dateRange</item>
<item name="dataType" xsi:type="string">date</item>
<item name="formElement" xsi:type="string">input</item>
<item name="component" xsi:type="string">Magento_Ui/js/form/element/date</item>
<item name="label" xsi:type="string" translate="true">Date</item>
<item name="dataScope" xsi:type="string">off_day</item>
<item name="disabled" xsi:type="boolean">false</item>
<item name="options" xsi:type="array">
<item name="dateFormat" xsi:type="string">y-MM-dd</item>
</item>
<item name="sortOrder" xsi:type="string">30</item>
</item>
</argument>
</field>
<actionDelete name="action_delete">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="fit" xsi:type="boolean">true</item>
<item name="prefixElementName" xsi:type="string">option_</item>
<item name="prefixName" xsi:type="string">Params.delete</item>
<item name="dataType" xsi:type="string">text</item>
</item>
</argument>
<settings>
<dataType>text</dataType>
<componentType>actionDelete</componentType>
</settings>
</actionDelete>
</container>
</dynamicRows>
</fieldset>