Migrate emojiStore to use request.CTX instead of context.Context (#24514)

* migrate emojistore to request.ctx

* use mlog.CreateConsoleTestLogger

* Add comment to WithMaster and RequestContextWithMaster

server/channels/store/sqlstore/context.go

@@ -5,6 +5,8 @@ package sqlstore
 
 import (
 	"context"
+
+	"github.com/mattermost/mattermost/server/public/shared/request"
 )
 
 // storeContextKey is the base type for all context keys for the store.
@@ -19,10 +21,20 @@ const (
 )
 
 // WithMaster adds the context value that master DB should be selected for this request.
+//
+// Deprecated: This method is deprecated and there's ongoing change to use `request.CTX` across
+// instead of `context.Context`. Please use `RequestContextWithMaster` instead.
 func WithMaster(ctx context.Context) context.Context {
 	return context.WithValue(ctx, storeContextKey(useMaster), true)
 }
 
+// RequestContextWithMaster adds the context value that master DB should be selected for this request.
+func RequestContextWithMaster(c request.CTX) request.CTX {
+	ctx := WithMaster(c.Context())
+	c.SetContext(ctx)
+	return c
+}
+
 // hasMaster is a helper function to check whether master DB should be selected or not.
 func hasMaster(ctx context.Context) bool {
 	if v := ctx.Value(storeContextKey(useMaster)); v != nil {