Help! can't see inside a Bag

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Help! can't see inside a Bag

Joseph Alotta
Help!


I have a data structure as the screenshot below shows.

There is a Bag with Transaction objects.

I can’t see inside the Transaction objects?

Why is there a Dictionary?

I can see the beginning of the transaction data, but I can’t the the whole line?

When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?


Sincerely,

Joe.


here is the link: https://www.flickr.com/photos/jalotta/26480315621/



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Re: Help! can't see inside a Bag

cbc
HI Joe,
A Bag is a structure to hold multiple, possibly repeating, objects in it.  One of the benefits is to know how many times an object is inside of the bag - how many times it repeats.

Bag is implemented with a Dictionary it in - the key is the objects that you put into the bag, and the value is the count of how many times it was put into the bag (hence all of the 1's that you see - they were probably just added once to the bag).

The explorer is optimized to make Dictionary navigation fast and convenient for normal Dictionaries - you can see and select the key, and get to see the details of the values in the dictionary.
It is not optimized for looking at the dictionary in the Bag, where you care about the key (and mostly not about the value - at least for your use case).

To explore the values in the Bag, I would suggest one of two ways of getting at the data:
1> send #asSet to the bag, and explore that
2> send #keys to the dictionary, and explore that
Either should work.

One more thing to think about - if you aren't going to have multiples of your Transaction objects (or don't care to know that you have multiple of them) in your Bag, you might want to consider using a Set instead.

Thanks,
cbc

On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote:
Help!


I have a data structure as the screenshot below shows.

There is a Bag with Transaction objects.

I can’t see inside the Transaction objects?

Why is there a Dictionary?

I can see the beginning of the transaction data, but I can’t the the whole line?

When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?


Sincerely,

Joe.


here is the link: https://www.flickr.com/photos/jalotta/26480315621/



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Beginners mailing list
[hidden email]
http://lists.squeakfoundation.org/mailman/listinfo/beginners


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Re: Help! can't see inside a Bag

Joseph Alotta
There is a possibility of duplicates.  For example, if I go to Starbucks buy a coffee, then buy a second cup.  There would be two transactions same amount, same day.

What about OrderedCollection?

How do I send #asSet to the bag, give that the bag is an instance variable in my larger object?





> On Apr 20, 2016, at 2:43 PM, cbc [via Smalltalk] <[hidden email]> wrote:
>
> HI Joe,
> A Bag is a structure to hold multiple, possibly repeating, objects in it.  One of the benefits is to know how many times an object is inside of the bag - how many times it repeats.
>
> Bag is implemented with a Dictionary it in - the key is the objects that you put into the bag, and the value is the count of how many times it was put into the bag (hence all of the 1's that you see - they were probably just added once to the bag).
>
> The explorer is optimized to make Dictionary navigation fast and convenient for normal Dictionaries - you can see and select the key, and get to see the details of the values in the dictionary.
> It is not optimized for looking at the dictionary in the Bag, where you care about the key (and mostly not about the value - at least for your use case).
>
> To explore the values in the Bag, I would suggest one of two ways of getting at the data:
> 1> send #asSet to the bag, and explore that
> 2> send #keys to the dictionary, and explore that
> Either should work.
>
> One more thing to think about - if you aren't going to have multiples of your Transaction objects (or don't care to know that you have multiple of them) in your Bag, you might want to consider using a Set instead.
>
> Thanks,
> cbc
>
> On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote:
> Help!
>
>
> I have a data structure as the screenshot below shows.
>
> There is a Bag with Transaction objects.
>
> I can’t see inside the Transaction objects?
>
> Why is there a Dictionary?
>
> I can see the beginning of the transaction data, but I can’t the the whole line?
>
> When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?
>
>
> Sincerely,
>
> Joe.
>
>
> here is the link: https://www.flickr.com/photos/jalotta/26480315621/
>
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> If you reply to this email, your message will be added to the discussion below:
> http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891054.html
> To start a new topic under Squeak - Beginners, email [hidden email]
> To unsubscribe from Squeak - Beginners, click here.
> NAML

cbc
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Re: Help! can't see inside a Bag

cbc


On Wed, Apr 20, 2016 at 2:25 PM, Joseph Alotta <[hidden email]> wrote:
There is a possibility of duplicates.  For example, if I go to Starbucks buy a coffee, then buy a second cup.  There would be two transactions same amount, same day.

What about OrderedCollection?

OrderedCollection would also work, especially if you want to see what order they happened in. If you just care about counting the times it happened, Bag might be better.
 
How do I send #asSet to the bag, give that the bag is an instance variable in my larger object?

In the explorer (right where you tried exploring the dictionary value in the bag), select the bag variable.
Then, down int eh bottom pane, type in 
   self asSet
and explore that.
Inline image 1




> On Apr 20, 2016, at 2:43 PM, cbc [via Smalltalk] <[hidden email]> wrote:
>
> HI Joe,
> A Bag is a structure to hold multiple, possibly repeating, objects in it.  One of the benefits is to know how many times an object is inside of the bag - how many times it repeats.
>
> Bag is implemented with a Dictionary it in - the key is the objects that you put into the bag, and the value is the count of how many times it was put into the bag (hence all of the 1's that you see - they were probably just added once to the bag).
>
> The explorer is optimized to make Dictionary navigation fast and convenient for normal Dictionaries - you can see and select the key, and get to see the details of the values in the dictionary.
> It is not optimized for looking at the dictionary in the Bag, where you care about the key (and mostly not about the value - at least for your use case).
>
> To explore the values in the Bag, I would suggest one of two ways of getting at the data:
> 1> send #asSet to the bag, and explore that
> 2> send #keys to the dictionary, and explore that
> Either should work.
>
> One more thing to think about - if you aren't going to have multiples of your Transaction objects (or don't care to know that you have multiple of them) in your Bag, you might want to consider using a Set instead.
>
> Thanks,
> cbc
>
> On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote:

> Help!
>
>
> I have a data structure as the screenshot below shows.
>
> There is a Bag with Transaction objects.
>
> I can’t see inside the Transaction objects?
>
> Why is there a Dictionary?
>
> I can see the beginning of the transaction data, but I can’t the the whole line?
>
> When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?
>
>
> Sincerely,
>
> Joe.
>
>
> here is the link: https://www.flickr.com/photos/jalotta/26480315621/
>
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]

> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> If you reply to this email, your message will be added to the discussion below:
> http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891054.html
> To start a new topic under Squeak - Beginners, email [hidden email]
> To unsubscribe from Squeak - Beginners, click here.
> NAML


View this message in context: Re: Help! can't see inside a Bag
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Re: Help! can't see inside a Bag

Joseph Alotta
How did you put the screen shot in your email?

Sent from my iPhone 

On Apr 20, 2016, at 4:54 PM, cbc [via Smalltalk] <[hidden email]> wrote:



On Wed, Apr 20, 2016 at 2:25 PM, Joseph Alotta <[hidden email]> wrote:
There is a possibility of duplicates.  For example, if I go to Starbucks buy a coffee, then buy a second cup.  There would be two transactions same amount, same day.

What about OrderedCollection?

OrderedCollection would also work, especially if you want to see what order they happened in. If you just care about counting the times it happened, Bag might be better.
 
How do I send #asSet to the bag, give that the bag is an instance variable in my larger object?

In the explorer (right where you tried exploring the dictionary value in the bag), select the bag variable.
Then, down int eh bottom pane, type in 
   self asSet
and explore that.
Inline image 1




> On Apr 20, 2016, at 2:43 PM, cbc [via Smalltalk] <[hidden email]> wrote:
>
> HI Joe,
> A Bag is a structure to hold multiple, possibly repeating, objects in it.  One of the benefits is to know how many times an object is inside of the bag - how many times it repeats.
>
> Bag is implemented with a Dictionary it in - the key is the objects that you put into the bag, and the value is the count of how many times it was put into the bag (hence all of the 1's that you see - they were probably just added once to the bag).
>
> The explorer is optimized to make Dictionary navigation fast and convenient for normal Dictionaries - you can see and select the key, and get to see the details of the values in the dictionary.
> It is not optimized for looking at the dictionary in the Bag, where you care about the key (and mostly not about the value - at least for your use case).
>
> To explore the values in the Bag, I would suggest one of two ways of getting at the data:
> 1> send #asSet to the bag, and explore that
> 2> send #keys to the dictionary, and explore that
> Either should work.
>
> One more thing to think about - if you aren't going to have multiples of your Transaction objects (or don't care to know that you have multiple of them) in your Bag, you might want to consider using a Set instead.
>
> Thanks,
> cbc
>
> On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote:

> Help!
>
>
> I have a data structure as the screenshot below shows.
>
> There is a Bag with Transaction objects.
>
> I can’t see inside the Transaction objects?
>
> Why is there a Dictionary?
>
> I can see the beginning of the transaction data, but I can’t the the whole line?
>
> When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?
>
>
> Sincerely,
>
> Joe.
>
>
> here is the link: https://www.flickr.com/photos/jalotta/26480315621/
>
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]

> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> If you reply to this email, your message will be added to the discussion below:
> http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891054.html
> To start a new topic under Squeak - Beginners, email [hidden email]
> To unsubscribe from Squeak - Beginners, click here.
> NAML

View this message in context: Re: Help! can't see inside a Bag
Sent from the Squeak - Beginners mailing list archive at Nabble.com.

_______________________________________________
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http://lists.squeakfoundation.org/mailman/listinfo/beginners



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If you reply to this email, your message will be added to the discussion below:
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To unsubscribe from Squeak - Beginners, click here.
NAML
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Re: Help! can't see inside a Bag

Bert Freudenberg
You can include a screenshot, there just is a size limit :)

If you crop the shot to the relevant part, and compress it as PNG, it usually fits. It's also polite to shorten the quoted emails to the relevant sections (which cuts down on size too).

- Bert -

On 21.04.2016, at 01:38, Joseph Alotta <[hidden email]> wrote:

How did you put the screen shot in your email?

Sent from my iPhone 

On Apr 20, 2016, at 4:54 PM, cbc [via Smalltalk] <[hidden email]> wrote:



On Wed, Apr 20, 2016 at 2:25 PM, Joseph Alotta <[hidden email]> wrote:
There is a possibility of duplicates.  For example, if I go to Starbucks buy a coffee, then buy a second cup.  There would be two transactions same amount, same day.

What about OrderedCollection?

OrderedCollection would also work, especially if you want to see what order they happened in. If you just care about counting the times it happened, Bag might be better.
 
How do I send #asSet to the bag, give that the bag is an instance variable in my larger object?

In the explorer (right where you tried exploring the dictionary value in the bag), select the bag variable.
Then, down int eh bottom pane, type in 
   self asSet
and explore that.
Inline image 1




> On Apr 20, 2016, at 2:43 PM, cbc [via Smalltalk] <[hidden email]> wrote:
>
> HI Joe,
> A Bag is a structure to hold multiple, possibly repeating, objects in it.  One of the benefits is to know how many times an object is inside of the bag - how many times it repeats.
>
> Bag is implemented with a Dictionary it in - the key is the objects that you put into the bag, and the value is the count of how many times it was put into the bag (hence all of the 1's that you see - they were probably just added once to the bag).
>
> The explorer is optimized to make Dictionary navigation fast and convenient for normal Dictionaries - you can see and select the key, and get to see the details of the values in the dictionary.
> It is not optimized for looking at the dictionary in the Bag, where you care about the key (and mostly not about the value - at least for your use case).
>
> To explore the values in the Bag, I would suggest one of two ways of getting at the data:
> 1> send #asSet to the bag, and explore that
> 2> send #keys to the dictionary, and explore that
> Either should work.
>
> One more thing to think about - if you aren't going to have multiples of your Transaction objects (or don't care to know that you have multiple of them) in your Bag, you might want to consider using a Set instead.
>
> Thanks,
> cbc
>
> On Wed, Apr 20, 2016 at 12:31 PM, Joseph Alotta <[hidden email]> wrote:

> Help!
>
>
> I have a data structure as the screenshot below shows.
>
> There is a Bag with Transaction objects.
>
> I can’t see inside the Transaction objects?
>
> Why is there a Dictionary?
>
> I can see the beginning of the transaction data, but I can’t the the whole line?
>
> When I explore, it opens a window on Integer 1.  Where are all the 1s coming from?
>
>
> Sincerely,
>
> Joe.
>
>
> here is the link: https://www.flickr.com/photos/jalotta/26480315621/
>
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]

> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> If you reply to this email, your message will be added to the discussion below:
> http://forum.world.st/Help-can-t-see-inside-a-Bag-tp4891049p4891054.html
> To start a new topic under Squeak - Beginners, email [hidden email]
> To unsubscribe from Squeak - Beginners, click here.
> NAML

View this message in context: Re: Help! can't see inside a Bag
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If you reply to this email, your message will be added to the discussion below:
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To start a new topic under Squeak - Beginners, email [hidden email]
To unsubscribe from Squeak - Beginners, click here.
NAML


View this message in context: Re: Help! can't see inside a Bag
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