[V3] Custom context class (#988)

* Create custom context class

* Documentation

* Remove old help method, replace with new

* Update from rebase

redbot/cogs/admin/admin.py

@@ -167,7 +167,7 @@ class Admin:
     async def editrole(self, ctx: commands.Context):
         """Edits roles settings"""
         if ctx.invoked_subcommand is None:
-            await ctx.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @editrole.command(name="colour", aliases=["color", ])
     async def editrole_colour(self, ctx: commands.Context, role: discord.Role,

redbot/cogs/alias/alias.py

@@ -184,7 +184,7 @@ class Alias:
     async def alias(self, ctx: commands.Context):
         """Manage per-server aliases for commands"""
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @alias.group(name="global")
     async def global_(self, ctx: commands.Context):
@@ -193,7 +193,7 @@ class Alias:
         """
         if ctx.invoked_subcommand is None or \
                 isinstance(ctx.invoked_subcommand, commands.Group):
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @alias.command(name="add")
     @commands.guild_only()

redbot/cogs/bank/bank.py

@@ -54,7 +54,7 @@ class Bank:
     async def bankset(self, ctx: commands.Context):
         """Base command for bank settings"""
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @bankset.command(name="toggleglobal")
     @checks.is_owner()

redbot/cogs/customcom/customcom.py

@@ -164,7 +164,7 @@ class CustomCommands:
                         ctx: commands.Context):
         """Custom commands management"""
         if not ctx.invoked_subcommand:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @customcom.group(name="add")
     @checks.mod_or_permissions(administrator=True)
@@ -176,7 +176,7 @@ class CustomCommands:
         """
         if not ctx.invoked_subcommand or isinstance(ctx.invoked_subcommand,
                                                     commands.Group):
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @cc_add.command(name='random')
     @checks.mod_or_permissions(administrator=True)

redbot/cogs/downloader/downloader.py

@@ -179,7 +179,7 @@ class Downloader:
         Command group for managing Downloader repos.
         """
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @repo.command(name="add")
     @install_agreement()
@@ -231,7 +231,7 @@ class Downloader:
         Command group for managing installable Cogs.
         """
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @cog.command(name="install")
     async def _cog_install(self, ctx, repo_name: Repo, cog_name: str):

redbot/cogs/economy/economy.py

@@ -141,7 +141,7 @@ class Economy:
     async def _bank(self, ctx: commands.Context):
         """Bank operations"""
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @_bank.command()
     async def balance(self, ctx: commands.Context, user: discord.Member = None):
@@ -405,7 +405,7 @@ class Economy:
         """Changes economy module settings"""
         guild = ctx.guild
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
             if await bank.is_global():
                 slot_min = await self.config.SLOT_MIN()
                 slot_max = await self.config.SLOT_MAX()

redbot/cogs/image/image.py

@@ -32,7 +32,7 @@ class Image:
         Make sure to set the client ID using
         [p]imgurcreds"""
         if ctx.invoked_subcommand is None:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
 
     @_imgur.command(name="search")
     async def imgur_search(self, ctx, *, term: str):
@@ -70,7 +70,7 @@ class Image:
             await ctx.send(_("Only 'new' and 'top' are a valid sort type."))
             return
         elif window not in ("day", "week", "month", "year", "all"):
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
             return
 
         if sort_type == "new":
@@ -120,7 +120,7 @@ class Image:
         if keywords:
             keywords = "+".join(keywords)
         else:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
             return
 
         url = ("http://api.giphy.com/v1/gifs/search?&api_key={}&q={}"
@@ -142,7 +142,7 @@ class Image:
         if keywords:
             keywords = "+".join(keywords)
         else:
-            await self.bot.send_cmd_help(ctx)
+            await ctx.send_help()
             return
 
         url = ("http://api.giphy.com/v1/gifs/random?&api_key={}&tag={}"