Hi david
I will massage a bit your text because I would not like to insult people around
me and give false impression. :)
I want a text for the world
http://www.pharo.org/success
For your information when Pharo will get as a tenth of the many paid engineers
of the other systems I will compare.
Esteban, Pablo and Guillermo are talented engineers. And so far the consortium
is able to pay one and half engineer and Inria
is supporting the rest.
Pharo is not like we would like it to be. Pharo is as we can make it with the
limited
resources we have. And so far I think that we are doing super good. You see
like the first ARM64 bits based JIT
and the first VM for M1 machine.
BTW for the new mac machines, we can give you access to a VM that is going
faster than the Rosetta one.
S.
> On 13 Feb 2021, at 13:40, David Pennington <da...@totallyobjects.com> wrote:
>
> OK, here goes.
>
> My finishing project formy Open University degree (started in 1974 and
> finished in 2017!) was a routing program for freight cars on US model
> railways - written in VAST Smalltalk with a Seaside front end and a Riak back
> end. Riak is a multi-user, fail over resilient Key/Value (K/V) database. I
> used it on a Linux server as I couldn’t get it going under MacOS. However,
> now I have finished my degree, I have disposed of the server so, for my new
> project I didn’t have a database. I had built my own K/V database some years
> ago to run the management and web software for a scale model shop that I
> owned at that time so I decided that I would recreate that database for my
> current use.
>
> TinkKV is my Smalltalk K/V. It relies on the OS for saving and retrieving
> objects which are saved using STON (Smalltalk Object Notation) format.
> Simple, there are two levels of bucket - 1) ‘Bucket’ and 2) ’SubBucket’.
> There can be multiple buckets which can contain multiple sub buckets. In my
> application, items are stored under two keys - FAOEntry (the basic entry
> object) which is the primary bucket, and multiple sub buckets keyed by the
> category of each object. It is a single user, local machine DB which is
> extremely fast - retrieves 189 records in 0.18 seconds on an M1 Mac.
>
> Family Accounts is a simple home accounts management package that will evolve
> over the coming month but basically imports transactions from a NatWest Sage
> Accounts format download and inserts them into the database. Each object can
> be categorised for budget control and each budget can be displayed. The
> program can import a set of regular items (in CSV format) that recur monthly
> so that a monthly budget can be managed. It is written in Pharo 8.0.
>
> I have been writing Smalltalk since 1990 when I started with Digitalk Visual
> Smalltalk but since about 1996 I have been using IBM/Instantiations VisualAge
> (VAST). I started the program, knowing nothing about Pharo, around the 15th
> January so it has taken just about a month of 1 -2 hours a day firstly to get
> to grips with Pharo and then to write the DB and Program. I have found Pharo
> quite difficult to come to grips with as, in comparison to VAST, it seems to
> be written for academics rather than business apps. However, once I got my
> head around how it was all put together, I found it an easy transition and
> great fun to use. I had expected to continue with VAST under Parallels but
> found that neither Parallels (well partially) or Windows 10 currently works
> successfully on an M1 MacBookAir. I did try to get hold of VisualWorks but
> didn’t get any response to my request for a download for some reason. I have
> written a good few frameworks for VAST so, now that my program is running
> successfully, I will have a look and see if I can port anything else. Watch
> this space.
>
> David Pennington
> Totally Objects
> (Http://www.totallyobjects.com <http://www.totallyobjects.com/>)
>
>> On 13 Feb 2021, at 11:09, Stéphane Ducasse <stephane.duca...@inria.fr
>> <mailto:stephane.duca...@inria.fr>> wrote:
>>
>> Hi david
>>
>> Two points:
>> - I would love to have a little success story about your application
>> = one paragraph what is does + one paragraph how technology is
>> cool :)
>>
>> - if you need we have a native VM for M1 (the stackVM).
>>
>> S.
>>
>>> On 11 Feb 2021, at 20:38, David Pennington <da...@totallyobjects.com
>>> <mailto:da...@totallyobjects.com>> wrote:
>>>
>>> Hi there Peter
>>>
>>> I have been writing Smalltalk since 1990 first with Digitalk and then
>>> IBM/Instantiations VAST. However, I am a newbie with Pharo having only used
>>> it for the last 3 weeks so I am pleased to have got my first Seaside app
>>> working successfully - it’s a home banking management app that imports from
>>> Sage compatible CSV files supplied by NatWest. This is the only real
>>> difficulty so I am very pleased with the work.
>>>
>>> I use my own brand key/value database that saves objects out to the disk.
>>> With my new M1 MacBookAir, I am getting read and write values around .3
>>> second for 125 records so I am very happy.
>>>
>>> I have yet to look at deleting the old file before writing but I am sure
>>> that this will make it superb.
>>>
>>> Many thanks for your help in this.
>>>
>>> David
>>> TotallyObjects
>>> http://www.totallyobjects <http://www.totallyobjects/>.com
>>>
>>> Your suggestion worked perfectly - I truncate the file and it parses
>>>
>>>> On 11 Feb 2021, at 17:07, <pe...@pbkresearch.co.uk
>>>> <mailto:pe...@pbkresearch.co.uk>> <pe...@pbkresearch.co.uk
>>>> <mailto:pe...@pbkresearch.co.uk>> wrote:
>>>>
>>>> David
>>>> I think you are misreading the debugger display. The bit you are missing
>>>> is the last few characters in the evaluation display, after the closing
>>>> parenthesis. They should not be there if it is displaying a dictionary.
>>>> Evidently the variable 'aDict' is in fact an association whose key is the
>>>> dictionary and whose value is nil.
>>>>
>>>> I can't see where it goes from there, but I think you need to look more
>>>> closely at the preceding line, FAOEntry>>getEntryObjectFrom:, and see
>>>> what exactly it does with the junk in your .dat file.
>>>>
>>>> HTH
>>>>
>>>> Peter Kenny
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: David Pennington <da...@totallyobjects.com
>>>> <mailto:da...@totallyobjects.com>>
>>>> Sent: 11 February 2021 16:46
>>>> To: Any question about pharo is welcome <pharo-users@lists.pharo.org
>>>> <mailto:pharo-users@lists.pharo.org>>
>>>> Subject: [Pharo-users] Re: Problem with Dictionary and Associations
>>>>
>>>> Thank you for that but it doesn’t resolve my problem. Why does the stack
>>>> move to an Association when doing the access to the dictionary? It is the
>>>> Association indexing that fails as it won’t allow #entryAmount as a key.
>>>>
>>>> If I inspect the following code (STON fromString: result ) in the line ^
>>>> self makeObject: (STON fromString: result ) I get an Association. Why
>>>> don’t I get a Dictionary. I did two days ago when all of this was working
>>>> perfectly and we were happily matching the Pharo Seaside display to our
>>>> bank account :=)
>>>>
>>>> David
>>>>
>>>>> On 11 Feb 2021, at 16:39, Sven Van Caekenberghe <s...@stfx.eu
>>>>> <mailto:s...@stfx.eu>> wrote:
>>>>>
>>>>> I can parse the file data you provided:
>>>>>
>>>>> STON fromString:
>>>>> '{#entryName:''Housekeeping'',#entryDate:Date[''2021-02-25Z''],#transactionID:''2021022501'',#entryAmount:-400/1s8,#entryCategory:''Housekeeping'',#entryDescription:''Housekeeping'',#match:nil}ousekeeping'',#match:nil}'
>>>>>
>>>>>
>>>>> "a Dictionary(#entryAmount->-400.00000000s8
>>>>> #entryCategory->'Housekeeping' #entryDate->25 February 2021
>>>>> #entryDescription->'Housekeeping' #entryName->'Housekeeping' #match->nil
>>>>> #transactionID->'2021022501' )"
>>>>>
>>>>> (BTW, this is STON not JSON).
>>>>>
>>>>> What I do see in the input is junk after the last }
>>>>>
>>>>> That can happen when you overwrite an existing file with shorter content.
>>>>> You should truncate such a file.
>>>>>
>>>>> From your screenshot I can see nothing wrong, #entryAmount seems an
>>>>> existing key in aDict, that should just work.
>>>>>
>>>>>> On 11 Feb 2021, at 16:33, David Pennington <da...@totallyobjects.com
>>>>>> <mailto:da...@totallyobjects.com>> wrote:
>>>>>>
>>>>>> I attach a couple of screen shots and a file containing the item that I
>>>>>> am trying to open. What else can I supply? This has been working for a
>>>>>> couple of weeks and suddenly doesn’t work. I save the JSON and then load
>>>>>> it back again. I enclose a file with the JSON as contents. As you can
>>>>>> see from the screenshot, the debugger shows it as a dictionary but the
>>>>>> execution path takes it to an Association which is what I don’t
>>>>>> understand.
>>>>>>
>>>>>> <stack.rtf><20210225 01><screenshot.png>
>>>>>>
>>>>>>> On 10 Feb 2021, at 19:17, Sven Van Caekenberghe <s...@stfx.eu
>>>>>>> <mailto:s...@stfx.eu>> wrote:
>>>>>>>
>>>>>>> Hi David,
>>>>>>>
>>>>>>>> On 10 Feb 2021, at 19:18, da...@totallyobjects.com
>>>>>>>> <mailto:da...@totallyobjects.com> wrote:
>>>>>>>>
>>>>>>>> I am using STON to objects out to disk. Up to two days ago, I was
>>>>>>>> reading them in as Dictionaries and converting to objects from there.
>>>>>>>> All of a sudden yesterday morning, I got an error saying that the
>>>>>>>> association is only indexable with integers. Even so, I don't seem to
>>>>>>>> be able to access the contents.
>>>>>>>>
>>>>>>>> Fistly, any ideas why this has changed and secondly, any ideas how to
>>>>>>>> fix it?
>>>>>>>>
>>>>>>>> David
>>>>>>>> Totally Objects
>>>>>>>>
>>>>>>>> Sent from my Huawei tablet
>>>>>>>
>>>>>>> I am afraid I need more information.
>>>>>>>
>>>>>>> Could you create a reproducible case ?
>>>>>>> Do you have a stack trace ?
>>>>>>>
>>>>>>> In any case, STON is a text format, that can be edited (in most cases,
>>>>>>> shared or circular references being hard to edit by hand).
>>>>>>>
>>>>>>> Sven
>>>>>>
>>>
>>
>> --------------------------------------------
>> Stéphane Ducasse
>> http://stephane.ducasse.free.fr <http://stephane.ducasse.free.fr/> /
>> http://www.pharo.org <http://www.pharo.org/>
>> 03 59 35 87 52
>> Assistant: Aurore Dalle
>> FAX 03 59 57 78 50
>> TEL 03 59 35 86 16
>> S. Ducasse - Inria
>> 40, avenue Halley,
>> Parc Scientifique de la Haute Borne, Bât.A, Park Plaza
>> Villeneuve d'Ascq 59650
>> France
>>
>
--------------------------------------------
Stéphane Ducasse
http://stephane.ducasse.free.fr / http://www.pharo.org
03 59 35 87 52
Assistant: Aurore Dalle
FAX 03 59 57 78 50
TEL 03 59 35 86 16
S. Ducasse - Inria
40, avenue Halley,
Parc Scientifique de la Haute Borne, Bât.A, Park Plaza
Villeneuve d'Ascq 59650
France
