EBackend.Cache.foreach

### Method

# EBackend Cacheforeach

since: 3.26

#### Declaration [src]

    gboolean
    e_cache_foreach (
      ECache* cache,
      ECacheDeletedFlag deleted_flag,
      const gchar* where_clause,
      ECacheForeachFunc func,
      gpointer user_data,
      GCancellable* cancellable,
      GError** error
    )

#### Description [src]

Calls `func` for each found object, which satisfies the criteria for both `deleted_flag` and `where_clause`.

Note the `func` should not call any SQLite commands, because it’s invoked within a SELECT statement execution.

Available since: 3.26

#### Parameters

`deleted_flag`

  Type: `ECacheDeletedFlag`

  One of `ECacheDeletedFlag` enum.

`where_clause`

  Type: `const gchar*`

  An optional SQLite WHERE clause part, or `NULL`.

  The argument can be `NULL`.
  The data is owned by the caller of the method.
  The value is a NUL terminated UTF-8 string.

`func`

  Type: `ECacheForeachFunc`

  An `ECacheForeachFunc` function to call for each object.

`user_data`

  Type: `gpointer`

  User data for the `func`.

  The argument can be `NULL`.
  The data is owned by the caller of the method.

`cancellable`

  Type: `GCancellable`

  Optional `GCancellable` object, or `NULL`.

  The argument can be `NULL`.
  The data is owned by the caller of the method.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the method if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

Whether succeeded.