diff --git a/app/controllers/active_storage_db/files_controller.rb b/app/controllers/active_storage_db/files_controller.rb
index bd6ae7c..a2635d9 100644
--- a/app/controllers/active_storage_db/files_controller.rb
+++ b/app/controllers/active_storage_db/files_controller.rb
@@ -16,7 +16,7 @@ def show
 
     def update
       if (token = decode_verified_token)
-        file_uploaded = upload_file(token, body: request.body)
+        file_uploaded = upload_file(token)
         head(file_uploaded ? :no_content : unprocessable)
       else
         head(:not_found)
@@ -54,7 +54,7 @@ def serve_file(key, content_type:, disposition:)
       send_data(db_service.download(key), options)
     end
 
-    def upload_file(token, body:) # rubocop:disable Naming/PredicateMethod
+    def upload_file(token) # rubocop:disable Naming/PredicateMethod
       return false unless acceptable_content?(token)
 
       db_service.upload(token[:key], request.body, checksum: token[:checksum])
diff --git a/lib/active_storage/service/db_service.rb b/lib/active_storage/service/db_service.rb
index 3628532..8e89c23 100644
--- a/lib/active_storage/service/db_service.rb
+++ b/lib/active_storage/service/db_service.rb
@@ -90,7 +90,7 @@ def url_for_direct_upload(key, expires_in:, content_type:, content_length:, chec
             content_type: content_type,
             content_length: content_length,
             checksum: checksum,
-            service_name: respond_to?(:name) ? name : "db"
+            service_name: service_name_for_token
           },
           expires_in: expires_in,
           purpose: :blob_token
@@ -108,12 +108,20 @@ def headers_for_direct_upload(_key, content_type:, **)
 
     private
 
+    def service_name_for_token
+      respond_to?(:name) ? name : "db"
+    end
+
     def adapter_sqlite?
-      @adapter_sqlite ||= active_storage_db_adapter_name == "SQLite"
+      return @adapter_sqlite if defined?(@adapter_sqlite)
+
+      @adapter_sqlite = active_storage_db_adapter_name == "SQLite"
     end
 
     def adapter_sqlserver?
-      @adapter_sqlserver ||= active_storage_db_adapter_name == "SQLServer"
+      return @adapter_sqlserver if defined?(@adapter_sqlserver)
+
+      @adapter_sqlserver = active_storage_db_adapter_name == "SQLServer"
     end
 
     def active_storage_db_adapter_name
@@ -131,7 +139,7 @@ def generate_url(key, expires_in:, filename:, content_type:, disposition:)
           key: key,
           disposition: content_disposition,
           content_type: content_type,
-          service_name: respond_to?(:name) ? name : "db"
+          service_name: service_name_for_token
         },
         expires_in: expires_in,
         purpose: :blob_key
diff --git a/lib/active_storage/service/db_service_rails70.rb b/lib/active_storage/service/db_service_rails70.rb
index 18e15a7..f4943cc 100644
--- a/lib/active_storage/service/db_service_rails70.rb
+++ b/lib/active_storage/service/db_service_rails70.rb
@@ -6,11 +6,13 @@ def compose(source_keys, destination_key, **)
       buffer = nil
       comment = "DBService#compose"
       source_keys.each do |source_key|
-        data = ::ActiveStorageDB::File.annotate(comment).find_by!(ref: source_key).data
+        record = ::ActiveStorageDB::File.annotate(comment).find_by(ref: source_key)
+        raise ActiveStorage::FileNotFoundError unless record
+
         if buffer
-          buffer << data
+          buffer << record.data
         else
-          buffer = +data
+          buffer = +record.data
         end
       end
       ::ActiveStorageDB::File.create!(ref: destination_key, data: buffer) if buffer
diff --git a/lib/tasks/active_storage_db_tasks.rake b/lib/tasks/active_storage_db_tasks.rake
index 30b10d3..b827af9 100644
--- a/lib/tasks/active_storage_db_tasks.rake
+++ b/lib/tasks/active_storage_db_tasks.rake
@@ -5,22 +5,25 @@ module ActiveStorage
     module_function
 
     def print_blob_header(digits: 0)
-      puts ['Size'.rjust(8), 'Date'.rjust(18), 'Id'.rjust(digits + 2), '  Filename'].join
+      puts ["Size".rjust(8), "Date".rjust(18), "Id".rjust(digits + 2), "  Filename"].join
     end
 
     def print_blob(blob, digits: 0)
       size = (blob.byte_size / 1024).to_s.rjust(7)
-      date = blob.created_at.strftime('%Y-%m-%d %H:%M')
+      date = blob.created_at.strftime("%Y-%m-%d %H:%M")
       puts "#{size}K  #{date}  #{blob.id.to_s.rjust(digits)}  #{blob.filename}"
     end
   end
 end
 
 namespace :asdb do
-  desc 'ActiveStorageDB: list attachments ordered by blob id desc'
+  desc "ActiveStorageDB: list attachments ordered by blob id desc"
   task list: [:environment] do |_t, _args|
     query = ActiveStorage::Blob.order(id: :desc).limit(100)
-    digits = query.ids.inject(0) { |ret, id| size = id.to_s.size; [size, ret].max }
+    digits = query.ids.inject(0) { |ret, id|
+      size = id.to_s.size
+      [size, ret].max
+    }
 
     ActiveStorage::Tasks.print_blob_header(digits: digits)
     query.each do |blob|
@@ -28,14 +31,14 @@ namespace :asdb do
     end
   end
 
-  desc 'ActiveStorageDB: download attachment by blob id'
+  desc "ActiveStorageDB: download attachment by blob id"
   task :download, [:blob_id, :destination] => [:environment] do |_t, args|
     blob_id = args[:blob_id]&.strip
     destination = args[:destination]&.strip || Dir.pwd
-    abort('Required arguments: source blob id, destination path') if blob_id.blank? || destination.blank?
+    abort("Required arguments: source blob id, destination path") if blob_id.blank? || destination.blank?
 
     blob = ActiveStorage::Blob.find_by(id: blob_id)
-    abort('Source file not found') unless blob
+    abort("Source file not found") unless blob
 
     destination = "#{destination}/#{blob.filename}" if Dir.exist?(destination)
     dir = File.dirname(destination)
@@ -45,20 +48,23 @@ namespace :asdb do
     puts "#{ret} bytes written - #{destination}"
   end
 
-  desc 'ActiveStorageDB: search attachment by filename (or part of it)'
+  desc "ActiveStorageDB: search attachment by filename (or part of it)"
   task :search, [:filename] => [:environment] do |_t, args|
     filename = args[:filename]&.strip
-    abort('Required arguments: filename') if filename.blank?
+    abort("Required arguments: filename") if filename.blank?
 
-    blobs = ActiveStorage::Blob.where('filename LIKE ?', "%#{filename}%").order(id: :desc)
+    blobs = ActiveStorage::Blob.where("filename LIKE ?", "%#{ActiveRecord::Base.sanitize_sql_like(filename)}%").order(id: :desc)
     if blobs.any?
-      digits = blobs.ids.inject(0) { |ret, id| size = id.to_s.size; [size, ret].max }
+      digits = blobs.ids.inject(0) { |ret, id|
+        size = id.to_s.size
+        [size, ret].max
+      }
       ActiveStorage::Tasks.print_blob_header(digits: digits)
       blobs.each do |blob|
         ActiveStorage::Tasks.print_blob(blob, digits: digits)
       end
     else
-      puts 'No results'
+      puts "No results"
     end
   end
 end
diff --git a/spec/integration/attachments_spec.rb b/spec/integration/attachments_spec.rb
index d292791..692767b 100644
--- a/spec/integration/attachments_spec.rb
+++ b/spec/integration/attachments_spec.rb
@@ -19,6 +19,8 @@
         ActiveStorage.touch_attachment_records = false
         example.run
         ActiveStorage.touch_attachment_records = touch_option
+      else
+        example.run
       end
     end