Add support for providing upload parameters in CarrierWave

lib/cloudinary/carrier_wave/process.rb

@@ -48,6 +48,10 @@ def cloudinary_transformation(options)
     def tags(*tags)
       process :tags=>tags
     end
+
+    def upload_params(params={})
+      process :upload_params => params
+    end
   end
 
   def set_or_yell(hash, attr, value)
@@ -135,6 +139,19 @@ def tags
     @tags
   end
 
+  def upload_params
+    @upload_params ||= begin
+      params_processors = self.all_processors.select{|processor| processor[0] == :upload_params}
+      merged_params = {}
+      params_processors.each do |processor|
+        merged_params.merge!(processor[1] || {})
+      end
+      merged_params
+    end
+    raise CloudinaryException, "upload_params cannot be used in versions." if @upload_params.present? && self.version_name.present?
+    @upload_params
+  end
+
   def requested_format
     format_processor = self.all_processors.find{|processor| processor[0] == :convert}
     if format_processor

lib/cloudinary/carrier_wave/storage.rb

@@ -35,6 +35,10 @@ def store!(file)
       params[:eager] = eager_versions.map{|version| [version.transformation, version.format]} if eager_versions.length > 0
       params[:type]=uploader.class.storage_type
 
+      # Merge any custom upload parameters
+      custom_params = uploader.upload_params
+      params.merge!(custom_params) if custom_params.present?
+
       params[:resource_type] ||= :auto
       upload_method = uploader.respond_to?(:upload_chunked?) && uploader.upload_chunked? ? "upload_large" : "upload"
       uploader.metadata = Cloudinary::Uploader.send(upload_method, data, params)

spec/carriewave_spec.rb

@@ -1,6 +1,19 @@
 require 'spec_helper'
 require 'cloudinary'
 
+# Add blank? method for testing
+class Object
+  def blank?
+    respond_to?(:empty?) ? !!empty? : !self
+  end unless method_defined?(:blank?)
+end
+
+class NilClass
+  def blank?
+    true
+  end unless method_defined?(:blank?)
+end
+
 module CarrierWave
   module Storage
     class Abstract
@@ -11,7 +24,81 @@ def initialize(uploader)
       attr_accessor :uploader
     end
   end
-  class SanitizedFile; end
+
+  class SanitizedFile
+    def self.sanitize_regexp
+      /[^a-zA-Z0-9\.\-\+_]/
+    end
+  end
+
+  module Uploader
+    class Base
+      attr_accessor :cache_storage
+
+      def self.storage(storage_class)
+        @storage_class = storage_class
+      end
+
+      def self.cache_storage
+        @cache_storage
+      end
+
+      def self.cache_storage=(storage)
+        @cache_storage = storage
+      end
+
+      def self.class_attribute(*attrs, **options)
+        attrs.each do |attr|
+          instance_variable_set("@#{attr}", nil)
+          define_singleton_method attr do |value = nil|
+            if value
+              instance_variable_set("@#{attr}", value)
+            else
+              instance_variable_get("@#{attr}")
+            end
+          end
+          define_method attr do
+            self.class.send(attr)
+          end
+          define_method "#{attr}=" do |value|
+            self.class.send(attr, value)
+          end unless options[:instance_reader] == false
+        end
+      end
+
+      def self.extend(mod)
+        super
+      end
+
+      def self.processors
+        @processors ||= []
+      end
+
+      def self.process(method_name)
+        processors << [method_name.keys.first, method_name.values.first, nil]
+      end
+
+      def self.version_names
+        []
+      end
+
+      def initialize
+        # Mock initialization
+      end
+
+      def version_name
+        nil
+      end
+
+      def versions
+        OpenStruct.new(values: [])
+      end
+
+      def transformation
+        {}
+      end
+    end
+  end
 end
 
 RSpec.describe Cloudinary::CarrierWave do
@@ -31,11 +118,112 @@ class SanitizedFile; end
       subject
     end
   end
+
+  describe 'upload parameters' do
+    class TestUploader < CarrierWave::Uploader::Base
+      include Cloudinary::CarrierWave
+      attr_accessor :enable_processing
+
+      def initialize(model = nil, mounted_as = nil)
+        super()
+        @enable_processing = true
+      end
+    end
+
+    let(:uploader) { TestUploader.new }
+
+    describe '#upload_params class method' do
+      before do
+        # Reset processors between tests
+        TestUploader.instance_variable_set(:@processors, [])
+      end
+
+      it 'allows setting upload parameters' do
+        TestUploader.upload_params(use_filename: true, overwrite: false)
+        instance = TestUploader.new
+        expect(instance.upload_params).to eq(use_filename: true, overwrite: false)
+      end
+
+      it 'merges multiple upload_params calls' do
+        TestUploader.upload_params(use_filename: true)
+        TestUploader.upload_params(overwrite: false)
+        instance = TestUploader.new
+        expect(instance.upload_params).to eq(use_filename: true, overwrite: false)
+      end
+
+      it 'supports asset_folder parameter' do
+        TestUploader.upload_params(asset_folder: 'my_project_assets')
+        instance = TestUploader.new
+        expect(instance.upload_params).to eq(asset_folder: 'my_project_assets')
+      end
+
+      it 'supports display_name parameter' do
+        TestUploader.upload_params(display_name: 'Sample Upload Test')
+        instance = TestUploader.new
+        expect(instance.upload_params).to eq(display_name: 'Sample Upload Test')
+      end
+
+      it 'combines asset_folder and display_name with other parameters' do
+        TestUploader.upload_params(asset_folder: 'ecommerce_project')
+        TestUploader.upload_params(display_name: 'Product Image Upload')
+        TestUploader.upload_params(use_filename: true)
+        TestUploader.upload_params(unique_filename: false)
+        instance = TestUploader.new
+        expect(instance.upload_params).to eq(
+          asset_folder: 'ecommerce_project',
+          display_name: 'Product Image Upload',
+          use_filename: true,
+          unique_filename: false
+        )
+      end
+
+      it 'supports complex upload parameters including metadata and context' do
+        TestUploader.upload_params(
+          asset_folder: 'demo_project',
+          display_name: 'CarrierWave Upload Test',
+          use_filename: true,
+          unique_filename: false,
+          overwrite: true,
+          context: { category: 'product', source: 'admin_panel' },
+          metadata: { uploaded_by: 'admin_user', department: 'marketing' }
+        )
+        instance = TestUploader.new
+        expected_params = {
+          asset_folder: 'demo_project',
+          display_name: 'CarrierWave Upload Test',
+          use_filename: true,
+          unique_filename: false,
+          overwrite: true,
+          context: { category: 'product', source: 'admin_panel' },
+          metadata: { uploaded_by: 'admin_user', department: 'marketing' }
+        }
+        expect(instance.upload_params).to eq(expected_params)
+      end
+    end
+
+    describe '#upload_params instance method' do
+      it 'returns empty hash when no upload params are set' do
+        uploader_class = Class.new(CarrierWave::Uploader::Base) do
+          include Cloudinary::CarrierWave
+        end
+        instance = uploader_class.new
+        expect(instance.upload_params).to eq({})
+      end
+
+      it 'prevents use in versions' do
+        TestUploader.instance_variable_set(:@processors, [])
+        TestUploader.upload_params(quality: 'auto')
+        instance = TestUploader.new
+        allow(instance).to receive(:version_name).and_return('thumb')
+        expect { instance.upload_params }.to raise_error(CloudinaryException, "upload_params cannot be used in versions.")
+      end
+    end
+  end
 end
 
 RSpec.describe Cloudinary::PreloadedFile do
   let(:test_api_secret) { "X7qLTrsES31MzxxkxPPA-pAGGfU" }
-  
+
   before do
     Cloudinary.config.update(:api_secret => test_api_secret)
   end
@@ -68,45 +256,45 @@ class SanitizedFile; end
       # So if filename is "tests/logo.png", public_id becomes "tests/logo"
       filename_with_format = public_id
       public_id_without_format = "tests/logo"  # public_id without .png extension
-      
+
       # Generate a valid signature using the public_id without extension
       # The version parsed from preloaded string will be a string, so we use string here too
       version_string = test_version.to_s
       expected_signature = Cloudinary::Utils.api_sign_request(
-        { :public_id => public_id_without_format, :version => version_string }, 
-        test_api_secret, 
-        nil, 
+        { :public_id => public_id_without_format, :version => version_string },
+        test_api_secret,
+        nil,
         1 # verify_api_response_signature uses version 1
       )
-      
-      # Create a preloaded file string  
+
+      # Create a preloaded file string
       preloaded_string = "image/upload/v#{version_string}/#{filename_with_format}##{expected_signature}"
       preloaded_file = Cloudinary::PreloadedFile.new(preloaded_string)
-      
+
       expect(preloaded_file).to be_valid
     end
 
     it "should fail verification with incorrect signature" do
       wrong_signature = "wrongsignature"
       preloaded_string = "image/upload/v#{test_version}/#{public_id}##{wrong_signature}"
       preloaded_file = Cloudinary::PreloadedFile.new(preloaded_string)
-      
+
       expect(preloaded_file).not_to be_valid
     end
 
     it "should handle raw resource type correctly" do
       raw_filename = "document.pdf"
       version_string = test_version.to_s
       raw_signature = Cloudinary::Utils.api_sign_request(
-        { :public_id => raw_filename, :version => version_string }, 
-        test_api_secret, 
-        nil, 
+        { :public_id => raw_filename, :version => version_string },
+        test_api_secret,
+        nil,
         1
       )
-      
+
       preloaded_string = "raw/upload/v#{version_string}/#{raw_filename}##{raw_signature}"
       preloaded_file = Cloudinary::PreloadedFile.new(preloaded_string)
-      
+
       expect(preloaded_file).to be_valid
       expect(preloaded_file.resource_type).to eq('raw')
     end