Implemented Delete feature in DataGridsManager.py. There is still a bug as DBEngine.delete is not implemented

Improved readability for tests using matcher

src/myfasthtml/core/commands.py

@@ -3,7 +3,8 @@ import inspect
 import json
 import logging
 import uuid
-from typing import Optional
+from dataclasses import dataclass
+from typing import Optional, Literal
 
 from myutils.observable import NotObservableError, ObservableResultCollector
 
@@ -15,6 +16,19 @@ logger = logging.getLogger("Commands")
 AUTO_SWAP_OOB = "__auto_swap_oob__"
 
 
+@dataclass
+class BoundCommand:
+  """
+  Represents a command bound to another command.
+
+  Attributes:
+      command: The command to execute
+      when: When to execute the bound command ("before" or "after" the main command)
+  """
+  command: 'Command'
+  when: Literal["before", "after"] = "after"
+
+
 class Command:
   """
   Represents the base command class for defining executable actions.
@@ -128,19 +142,31 @@ class Command:
   def execute(self, client_response: dict = None):
     logger.debug(f"Executing command {self.name} with arguments {client_response=}")
     with ObservableResultCollector(self._bindings) as collector:
+      # Execute "before" bound commands
+      ret_from_before_commands = []
+      if self.owner:
+        before_commands = [bc for bc in self.owner.get_bound_commands(self.name) if bc.when == "before"]
+        for bound_cmd in before_commands:
+          logger.debug(f"  will execute bound command {bound_cmd.command.name} BEFORE...")
+          r = bound_cmd.command.execute(client_response)
+          ret_from_before_commands.append(r)
+
+      # Execute main callback
       kwargs = self._create_kwargs(self.default_kwargs,
                                    client_response,
                                    {"client_response": client_response or {}})
       ret = self.callback(*self.default_args, **kwargs)
-      
-      ret_from_bound_commands = []
+
+      # Execute "after" bound commands
+      ret_from_after_commands = []
       if self.owner:
-        for command in self.owner.get_bound_commands(self.name):
-          logger.debug(f"  will execute bound command {command.name}...")
-          r = command.execute(client_response)
-          ret_from_bound_commands.append(r)  # it will be flatten if needed later
-    
-    all_ret = flatten(ret, ret_from_bound_commands, collector.results)
+        after_commands = [bc for bc in self.owner.get_bound_commands(self.name) if bc.when == "after"]
+        for bound_cmd in after_commands:
+          logger.debug(f"  will execute bound command {bound_cmd.command.name} AFTER...")
+          r = bound_cmd.command.execute(client_response)
+          ret_from_after_commands.append(r)
+
+    all_ret = flatten(ret, ret_from_before_commands, ret_from_after_commands, collector.results)
     
     # Set the hx-swap-oob attribute on all elements returned by the callback
     if self._htmx_extra[AUTO_SWAP_OOB]: