Colin, this is in a migration.
But I did not understand the last para of your reply. As you have suggested,
I will first try it on script/console and den let me try to know where
exactly the error is happening.
Colin Law-4 wrote:
>
> On 7 March 2010 00:39, mamathahl <mamatha...@gmail.com> wrote:
>>
>> I have been facing some problem with the datatypes. I have a sample of
>> code
>> as follows.
>>
>> t.lat_rad = (l.lat * BigDecimal.new("3.1415926536 / 180")).to_f
>> t.lng_rad = (l.lng * BigDecimal.new("3.1415926536 / 180")).to_f
>>
>> Initially, the datatype of lat_rad and lng_rad was as follows:
>>
>> t.decimal :lat_rad, :precision => 15, :scale => 10
>> t.decimal :lng_rad, :precision => 15, :scale => 10
>>
>> So, it gave me an error as follows:
>>
>> TypeError in ItemsController#populate
>>
>> wrong argument type BigDecimal (expected Float)
>>
>> Then I changed the data type of lat_rad and lng_rad to float. Even then
>> it
>> is giving me the same error. Any help to solve this problem will be
>> appreciated. Thanks in advance.
>
> I would suggest first splitting the statement into several lines
> performing a single operation on each line, this will enable you to
> identify which part of the statement is generating the error. Also
> try playing in ruby console to try and see what is going on. Finally
> you could use ruby-debug to break in to the code and examine the types
> of the variables to find what may not be quite as you expect.
>
> Also you did not answer the question as to whether this is in a
> migration. If so then it fraught with problems, it is not advisable
> to seed data within a migration if that is what you are doing.
>
> Colin
>
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