View not working with . but works with [' ']

I have some weird view behavior going around which I am unable to
understand.

<% for b in @admin_budget %>

<%= b['rental'] %> <%= b['phone'] %> <%= b['consumables'] %> <% end %>

works… but

<% for b in @admin_budget %>

<%= b.rental %> <%= b.phone %> <%= b.consumables %> <% end %>

does not work.

b.inspect throws up
#“7”, “current_approval_status”=>“N”, “misc”=>“1000”, “place_id”=>nil,
“updated_at”=>“2007-03-11”, “approved_by”=>nil, “created_by”=>“3”,
“total”=>“0”, “updated_by”=>nil, “id”=>“3”, “phone”=>“1500”,
“year”=>“2007”, “salaries”=>“5000”, “rental”=>“2500”,
“approved_at”=>nil, “consumables”=>“1000”,
“created_at”=>“2007-03-11”}>

and b.class throws up
AdminBudget

What is happening here? Any clues?

Regards,
Rajesh

Quick addition…

Just before the b.rental I am using b.month and b.year and
b.user.name. They produce the expected results! Wits end, folks.

Regards,
Rajesh

K. Rajesh wrote:

“updated_at”=>“2007-03-11”, “approved_by”=>nil, “created_by”=>“3”,
Regards,
Rajesh

If you check b.methods what do you see?


Michael W.

Thats a fairly big list… here goes

[“logger”, “table_name_prefix=”, “instance_values”,
“update_attributes”, “save_with_validation”, “toggle!”, “after_save”,
“build_user”, “singleton_methods”, “logger=”,
“clear_aggregation_cache”, “hash”, “send”, “enable_warnings”,
“initialize”, “record_timestamps”, “save!”, “update”,
“attributes_before_type_cast”, “instance_of?”,
“before_validation_on_update”, “nil?”, “record_timestamps=”,
“attribute_names”, “valid?”, “remove_subclasses_of”, “instance_exec”,
“id_before_type_cast”, “before_create”, “allow_concurrency”,
“create_user”, “protected_methods”, “clear_association_cache”,
“silence_stderr”, “tainted?”, “create_with_callbacks”,
“instance_eval”, “table_name_suffix”, “user”, “allow_concurrency=”,
“untaint”, “kind_of?”, “update_attribute”,
“after_validation_on_update”, “equal?”, “save_without_validation!”,
“display”, “table_name_suffix=”, “user=”, “blank?”, “load”, “errors”,
“after_create”, “destroy”, “private_methods”, “b64encode”,
“silence_stream”, “update_without_callbacks”, “readonly!”,
“set_place_target”, “is_a?”, “freeze”, “attribute_present?”,
“before_destroy”, “increment”, “gem”, “create”,
“save_with_validation!”, “eql?”, “require”, “has_user?”,
“before_update”, “subclasses_of”, “returning”, “quoted_id”,
“update_attribute_without_validation_skipping”, “id”, “method”,
“generate_read_methods”, “public_methods”, “lock_optimistically”,
“extended_by”, “`”, “id=”, “attributes”, “update_with_callbacks”,
“generate_read_methods=”, “pluralize_table_names”, “build_place”,
“has_attribute?”, “after_destroy”, “extend”, “attributes=”,
“initialize_with_callbacks”, “lock_optimistically=”, “configurations”,
“pluralize_table_names=”, “user?”, “type”, “after_update”,
“with_options”, “update_attribute_with_validation_skipping”,
“object_id”, “configurations=”, “instance_variables”, “suppress”,
“copy_instance_variables_from”, “increment!”, “frozen?”,
“destroy_without_callbacks”, “destroy_without_transactions”, “dclone”,
“create_place”, “to_a”, “decrement”, “validate_on_create”,
“create_without_timestamps”, “place”, “update_with_lock”, “class”,
“validate”, “before_validation”, “place=”, “schema_format”,
“instance_variable_get”, “destroy_with_callbacks”, “encode64”,
“destroy_with_transactions”, “verification_timeout”, “to_param”,
“colorize_logging”, “schema_format=”, “to_s”, “validate_on_update”,
“respond_to_without_attributes?”, “new_record?”,
“create_or_update_with_callbacks”, “create_with_timestamps”,
“verification_timeout=”, “primary_key_prefix_type”,
“colorize_logging=”, “reload”, “clone”, “after_validation”, “to_json”,
“to_yaml”, “instance_variable_set”, “primary_key_prefix_type=”,
“has_place?”, “==”, “require_library_or_gem”, “===”, “decrement!”,
“save_without_transactions”, “to_yaml_properties”,
“column_for_attribute”, “id”, “to_xml”, “locking_enabled?”,
“to_yaml_style”, “inspect”, “toggle”, “decode_b”, “require_gem”,
“valid_without_callbacks”, “connection”, “update_without_timestamps”,
“readonly?”, “silence_warnings”, “respond_to?”,
“before_validation_on_create”, “create_or_update”, “dup”, “=~”,
“place?”, “before_save”, “decode64”, “save_with_transactions”,
“extend_with_included_modules_from”, “save”,
“save_without_validation”, “send”, “set_user_target”, “taguri”,
“default_timezone”, “daemonize”, “[]”, “transaction”, “methods”,
“[]=”, “update_with_timestamps”, “valid_with_callbacks”, “taguri=”,
“table_name_prefix”, “default_timezone=”, “taint”,
“after_validation_on_create”]

Regards,
Rajesh

Few more questions:

  • What is b.class.superclass? I assume ActiveRecord::Base?
  • Does AdminBudget override rental, phone or consumables with its own
    accessors/methods? If so, you should check into these to make sure
    they’re working correctly.
  • What does b.respond_to?(‘rental’) say? It should return true…

Mmmm… I had an attr_reader specified for each of those things…
when I took it out, things started working again with the . operator.
Why does this happen?

Rajesh

Hi,

Quick addition…

Just before the b.rental I am using b.month and b.year and
b.user.name. They produce the expected results! Wits end, folks.

since rental is not a reserved word either of ruby or AR , I would
suggest that you do a project-wide (including plugins) of “def rental”
or “def self.rental” or even better if your search tool allows regular
expresions “def .* rental.*”. That should show you where you are
overwriting the rental method.

If you are not overwriting it, and assuming your @admin_budget object
holds an array of AR objects, then it makes no sense to me, unless you
have been playing with AR method missing definition.

regards,

javier ramirez

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Because ActiveRecord implements accessors in method_missing. If you
actually define a method or accessor with the same name as a column in
your model, ActiveRecord won’t be able to handle it for you.

Is there a reason you need to specify an attr_reader for those
columns?

No, actually. No reason. I removed it and it works. I was just
wondering why it didnt work. Learning is (from eden li)

“If you actually define a method or accessor with the same name as a
column in
your model, ActiveRecord won’t be able to handle it for you”

Cool,.

Rajesh

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