Issue #2673688 by himanshu_sindhwani, kkalashnikov, atul4drupal, Saur…

…abh_sgh, walangitan, andypost, markdorison, Bunty Badgujar, xjm, catch: Remove remains of hook_field_schema()

(cherry picked from commit 8d67348e9a32fc57dfbb5f42e3952fd5a3faff6c)

lib/Drupal/Core/Field/FieldConfigBase.php

@@ -125,9 +125,10 @@ abstract class FieldConfigBase extends ConfigEntityBase implements FieldConfigIn
    *
    * The default value is expressed as a numerically indexed array of items,
    * each item being an array of key/value pairs matching the set of 'columns'
-   * defined by the "field schema" for the field type, as exposed in
-   * hook_field_schema(). If the number of items exceeds the cardinality of the
-   * field, extraneous items will be ignored.
+   * defined by the "field schema" for the field type, as exposed in the class
+   * implementing \Drupal\Core\Field\FieldItemInterface::schema() method. If the
+   * number of items exceeds the cardinality of the field, extraneous items will
+   * be ignored.
    *
    * This property is overlooked if the $default_value_callback is non-empty.
    *

modules/field/field.api.php

@@ -17,8 +17,8 @@
  *
  * In the Field API, each field has a type, which determines what kind of data
  * (integer, string, date, etc.) the field can hold, which settings it provides,
- * and so on. The data type(s) accepted by a field are defined in
- * hook_field_schema().
+ * and so on. The data type(s) accepted by a field are defined in the class
+ * implementing \Drupal\Core\Field\FieldItemInterface::schema() method.
  *
  * Field types are plugins annotated with class
  * \Drupal\Core\Field\Annotation\FieldType, and implement plugin interface

modules/field/src/Entity/FieldStorageConfig.php

@@ -175,12 +175,14 @@ class FieldStorageConfig extends ConfigEntityBase implements FieldStorageConfigI
    * The custom storage indexes for the field data storage.
    *
    * This set of indexes is merged with the "default" indexes specified by the
-   * field type in hook_field_schema() to determine the actual set of indexes
-   * that get created.
+   * field type in the class implementing
+   * \Drupal\Core\Field\FieldItemInterface::schema() method to determine the
+   * actual set of indexes that get created.
    *
    * The indexes are defined using the same definition format as Schema API
    * index specifications. Only columns that are part of the field schema, as
-   * defined by the field type in hook_field_schema(), are allowed.
+   * defined by the field type in the class implementing
+   * \Drupal\Core\Field\FieldItemInterface::schema() method, are allowed.
    *
    * Some storage backends might not support indexes, and discard that
    * information.