[Seaside] FileStream

[Mariano Martinez Peck]

Alexandre, maybe you will receive more answers if you ask directly in the
pharo mailing list instead of seaside, since Files doesn't have anything to
do with seaside ;)

http://www.pharo-project.org/community

On Mon, Nov 29, 2010 at 10:20 PM, alexandre bp <abalonpe at ulb.ac.be> wrote:

> Thank you very much for your help.
> The thing is that, when I  first got the exception, I deleted  the
> file manually in the Pharo folder so I'm pretty sure it doesn't exist.
> Maybe that when I do: "aStream := FileStream newFileNamed:filename" Pharo
> looks everywhere in my computer than it might find a file named 'test'
>

No, that shouldn't happen. What if you do  FileDirectory defaul
newFileNamed: filename

does it work?

BTW..did you read Pharo by Example?  Because there is a whole chapter
explaining Streams and files....I am very bad with them, I always forget how
to do trivial things and I need to check there...

http://pharobyexample.org/

Cheers

Mariano


> or with a part of it named which is 'test'...but the file was created in
> the Pharo folder so I assume it must look only there to find a file, no?
>

yes


> alex
>
>
> 2010/11/28 Levente Uzonyi <leves at elte.hu>
>
> On Sat, 27 Nov 2010, alexandre bp wrote:
>>
>>  Hi,
>>>
>>> I'm having trouble with the FileStream....
>>>
>>> I have tried several things:
>>> filename := 'test'.
>>> aStream := StandardFileStream new.
>>> 1) aStream := FileStream newFileNamed:filename.
>>> 2) aStream := filename asFilename writeStream.
>>>
>>> 1) this solution worked one time but when I tried to create other
>>> files with other names (whatever the name) I get an exception:
>>> FileExistsException
>>> 2) doesn't work at all. I get an exception as well:
>>> MessageNotUnderstood: ByteString>>asFilename.
>>>
>>
>> How to use FileStreams?
>>
>> existingReadOnlyFile := FileStream readOnlyFileNamed: 'foo'. "raises an
>> exception if the file doesn't exist"
>> existingReadableAndWriteableFile := FileStream oldFileNamed: 'foo'.
>> "raises an exception if the file doesn't exist"
>> readableAndWriteableFile := FileStream fileNamed: 'foo'. "automatically
>> creates the file if it doesn't exist"
>> newReadableAndWriteableFile := FileStream newFileNamed: 'foo'. "raises an
>> exception if the file exists"
>> newReadableAndWriteableFile := FileStream forceNewFileNamed: 'foo'.
>> "deletes the file if it exists"
>>
>> All of these methods have a do: variant. For example:
>> FileStream readOnlyFileNamed: 'foo' do: [ :file | file contents "This will
>> close the file and return it's contents." ].
>>
>> When to use StandardFileStream?
>> Only when you don't need character encoding or line-end conversion.
>>
>>
>>
>>> I don't know what to do.... I don't understand why I have the
>>> exception FileExistsException even thought the name I give to filename
>>> is different...
>>>
>>
>> Are you sure that the file doesn't exist? Some systems (windows and most
>> macs) are case insensitive, so if you have a file named 'TEST', then you
>> also have 'test' and 'Test', etc.
>>
>>
>> Levente
>>
>>
>>> Thx for your help
>>>
>>> alex
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>>> seaside at lists.squeakfoundation.org
>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>
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>>
>
>
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