Allows to defined int64 primart field

examples/migrations/20170815112803321_add_model_with_one_field.cr

@@ -1,6 +1,7 @@
 class AddModelWithOneField20170815112803321 < Jennifer::Migration::Base
   def up
-    create_table(:one_field_models) do |t|
+    create_table(:one_field_models, false) do |t|
+      t.bigint :id, { :primary => true, :auto_increment => true }
     end
   end
 

examples/run.cr

@@ -4,6 +4,12 @@ require "./migrations/*"
 require "sam"
 require "../src/jennifer/sam"
 
+Jennifer::Config.configure do |conf|
+  # conf.logger = Logger.new(STDOUT)
+  conf.logger.level = Logger::DEBUG
+  # conf.logger.level = Logger::ERROR
+end
+
 Sam.namespace "script" do
   task "drop_models" do
     Jennifer::Model::Base.models.select(&.has_table?).each(&.all.delete)

spec/model/relation_definition_spec.cr

@@ -22,7 +22,7 @@ describe Jennifer::Model::RelationDefinition do
       ContactWithDependencies::CALLBACKS[:destroy][:before].includes?("__delete_callback_addresses").should be_true
     end
 
-    it "doen't invoke callbacks on associated model" do
+    it "doesn't invoke callbacks on associated model" do
       c = Factory.create_contact
       Factory.create_address(contact_id: c.id)
       count = Address.destroy_counter

spec/models.cr

@@ -260,7 +260,7 @@ end
 
 class OneFieldModel < Jennifer::Model::Base
   mapping(
-    id: Primary32
+    id: Primary64
   )
 end
 
@@ -340,7 +340,7 @@ class OneFieldModelWithExtraArgument < Jennifer::Model::Base
   table_name "one_field_models"
 
   mapping(
-    id: Primary32,
+    id: Primary64,
     missing_field: String
   )
 end

src/jennifer/adapter/base.cr

@@ -113,7 +113,7 @@ module Jennifer
           exec(*parsed_query)
           if klass.primary_auto_incrementable?
             klass.all.order({klass.primary => :desc}).limit(collection.size).pluck(:id).reverse_each.each_with_index do |id, i|
-              collection[i].init_primary_field(id)
+              collection[i].init_primary_field(id.as(Int))
             end
           end
         end

src/jennifer/adapter/postgres.cr

@@ -24,7 +24,7 @@ module Jennifer
         :double => "double precision", # Float64
 
         :numeric => "numeric", # PG::Numeric
-        :decimal => "decimal", # PG::Numeric - is alias for numeric
+        :decimal => "decimal", # PG::Numeric - alias for numeric
 
         :string     => "varchar",
         :char       => "char",
@@ -190,7 +190,7 @@ module Jennifer
         id = -1i64
         affected = 0i64
         if obj.class.primary_auto_incrementable?
-          id = scalar(*query_opts).as(Int32).to_i64
+          id = scalar(*query_opts).as(Int).to_i64
           affected += 1 if id > 0
         else
           affected = exec(*query_opts).rows_affected

src/jennifer/adapter/postgres/schema_processor.cr

@@ -121,13 +121,8 @@ module Jennifer
       end
 
       private def column_type_definition(options, io)
-        type = if options[:serial]? || options[:auto_increment]?
-                 "serial"
-               else
-                 options[:sql_type]? || adapter.translate_type(options[:type].as(Symbol))
-               end
         size = options[:size]? || adapter.default_type_size(options[:type]?)
-        io << " " << type
+        io << " " << column_type(options)
         io << "(#{size})" if size
         io << " ARRAY" if options[:array]?
       end
@@ -142,6 +137,14 @@ module Jennifer
           raise ArgumentError.new("Unknown index type: #{name}")
         end
       end
+
+      private def column_type(options)
+        if options[:serial]? || options[:auto_increment]?
+          options[:type] == :bigint ? "bigserial" : "serial"
+        else
+          options[:sql_type]? || adapter.translate_type(options[:type].as(Symbol))
+        end
+      end
     end
   end
 end

src/jennifer/model/base.cr

@@ -265,7 +265,7 @@ module Jennifer
       private def store_record : Bool
         return false unless __before_create_callback
         res = self.class.adapter.insert(self)
-        init_primary_field(res.last_insert_id.to_i) if primary.nil? && res.last_insert_id > -1
+        init_primary_field(res.last_insert_id.as(Int)) if primary.nil? && res.last_insert_id > -1
         raise ::Jennifer::BaseException.new("Record hasn't been stored to the db") if res.rows_affected == 0
         @new_record = false
         __after_create_callback

src/jennifer/model/mapping.cr

@@ -64,13 +64,15 @@ module Jennifer
                 {{value[:parsed_type].id}}
               end
 
-              # Inits primary field
-              def init_primary_field(value)
+              def init_primary_field(value : Int)
                 {% if primary_auto_incrementable %}
                   raise ::Jennifer::AlreadyInitialized.new(@{{key.id}}, value) if @{{key.id}}
-                  @{{key.id}} = value.as({{value[:type]}})
+                  @{{key.id}} = value{% if value[:parsed_type] =~ /32/ %}.to_i{% else %}.to_i64{% end %}
                 {% end %}
               end
+
+              # Inits primary field
+              def init_primary_field(value); end
             {% end %}
           {% end %}
         {% end %}