0f4cc1ab94
Changelog
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Move the impressive stuff up
2015-09-11 12:42:18 +07:00
7a85b77f50
Save state of splitter in GUI
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The splitters are not stored as part of the window's state, so
store it separately.
2015-09-11 12:41:33 +07:00
c3edd0190a
Add make step in debian/rules
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Fix the creation of the debian package to perform the
extra step.
2015-09-11 12:40:17 +07:00
c47823616a
Do not ship compiled files
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Remove the compiled files from the source.
Running from sources will require an extra make step that will generate
the necessary ui modules.
2015-09-11 12:33:58 +07:00
41bb45b445
Redesigned UI
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UI redesign.
Use Dock widgets for the toolbars, change various layouts to make the overall
UI smaller.
2015-09-11 12:26:37 +07:00
d597076038
Subtle bug that occurred selecting after a join
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Outer joins add the placeholder '---' that is used as some sort of NULL
value.
However select operations on such relations would always fail, because
relations are supposed to only contain values of class rstring, and
the placeholder was added as a regular string.
As a consequence, automatic casting would always fail, and the select
would always raise an exception.
Added a new test case with this specific case in mind.
2015-09-10 12:19:51 +07:00
f7ac34b761
Fix exception
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The reported exception will look uglier but will work for any kind of
weird tokenization that occurred.
2015-09-10 10:13:00 +07:00
df5ff35aa9
Changelog
2015-09-09 17:33:15 +07:00
20ebf45271
Parser cleanup
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The new method works fine to parse also unary operators.
This commit removes the special case.
2015-09-09 17:31:02 +07:00
6c8b60cf34
Improve error handling
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Provide a better error in case of operator missing
2015-09-09 17:28:12 +07:00
c30456c43e
Fix bug in parser
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The excessive stripping would cause "peo ple" to be recognized as
the relation "people" rather than an invalid thing.
2015-09-09 17:23:12 +07:00
5f3564a398
Fix bug in tokenizer
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It would not work with relations named like "l3"
2015-09-09 16:48:17 +07:00
ab46ad2a54
Typo in comments
2015-09-09 15:22:15 +07:00
9330090362
Switch to compiled regular expressions
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This introduces several advantages:
No longer rely on the cache to be able to contain as many as
needed. It works within relational but it is not assured to be so if it
is used within other projects.
Using compile flags allows slightly simpler expressions.
2015-09-09 15:17:17 +07:00
d8db1858ae
Fix bug: imported removed module
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import * would fail, because of a listed module that was removed.
2015-09-09 15:13:44 +07:00
c6d6bbfeaf
Refresh relation list in any case
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If a query was failing, created relations were not shown in the list
of relations.
2015-09-09 14:45:17 +07:00
1b2dc96af1
Re-generated UI
2015-09-09 12:43:25 +07:00
862c71fdfb
Clear session button and changed layout
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Added a button to clear the current session
changed the disposition of the operator buttons, to take up less
vertical space. Now it should be better to fit smaller screens.
2015-09-09 12:42:00 +07:00
66855ad50c
Clear session function
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Added a function to clear the current session
2015-09-09 12:38:54 +07:00
7742afd046
Removed redundant comments
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Just pointing the documentation towards the website so that
only one copy of it must be kept up to date.
2015-08-05 20:32:57 +07:00
9ea5e32563
changelog
2015-08-03 16:01:10 +07:00
edc5078475
Use session handling in GUI
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The UI stores the session when closing and loads it at the next
use.
2015-08-03 15:58:11 +07:00
0aa372792f
Session management
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Adds some functions to store and load an entire session as a binary
blob.
In this way the user does not need to re-load all the relations from the
previous session.
2015-08-03 15:56:37 +07:00
5a9c2f23a5
Changelog
2015-07-14 15:43:41 +07:00
be7e6fe12d
Classes have now names that begin with uppercase
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This is more Pythonic and makes the code more readable.
Backwards compatibility is provided by giving an alias with the
previous name of the class.
It will not be broken until the next major release.
2015-07-14 15:39:35 +07:00
af02b5a59b
Improved docstring
2015-07-14 15:08:39 +07:00
c275c1caf3
Improve performance of __eq__
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If the cardinality of two relations does not match, the expensive
rearrange procedure is not performed at all.
2015-07-14 11:11:13 +07:00
f787630edb
Use isinstance rather than comparing class attribute
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This allows to create subclasses
2015-07-14 11:09:42 +07:00
73dd14d9dd
Style
2015-07-14 11:01:35 +07:00
98ac364dc7
Removed encoding string
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Not needed in Python 3
2015-07-14 10:43:13 +07:00
9a570b4386
Use regexp constant
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The regexp used was not even the same one…
2015-07-14 10:39:38 +07:00
33d9545d66
Improved docstring
2015-07-14 10:38:14 +07:00
e2ab59bcc4
Added public attribute with relation name regexp
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Also simplified the function to check whether a name is valid for
a relation.
2015-07-14 10:35:54 +07:00
a655e81b28
Remove useless comments
2015-07-14 01:18:54 +07:00
9416a9fef9
Removed useless unicode marker from strings
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We are using Python3 now, so that is not needed
2015-07-09 23:43:54 +07:00
df485e4bd4
Make use of callable string
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Instead of explicitly using eval, make use of the
new callable string feature
2015-07-09 23:42:52 +07:00
33651430d0
Removed curses module
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unused
2015-07-09 23:37:20 +07:00
4f85a545bf
parse function returns a callable string
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The python string returned by the parser are now directly callable.
They accept an optional parameter for the context.
2015-07-09 23:35:45 +07:00
f5e8e442a0
Removed unused variables
2015-07-09 23:32:46 +07:00
494469e10c
Changelog
2015-07-09 22:39:33 +07:00
f6b4c6708b
_rearrange() is an identity if not needed
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Operations are possible even when the order of the attributes is
not the same. Because ordering is just an implementation detail and
not an actual part of relational algebra.
A _rearrange() function exists to convert relations to have a similar
format and be able to operate on them.
The function would perform a projection in any case, which would cause
the creation of a new temporary relation, even when the relations where
already using the same order of attributes.
This commit fixes the issue by making it return an identity if the
operation is not necessary.
2015-06-25 16:46:10 +07:00
95e375f44a
Use dictionary comprehension in selection
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When doing a selection, a new context (in the form of a dictionary)
is created.
Instead of re-using the same dictionary re-assigning the values, now
use a comprehension to avoid redundant reads.
2015-06-25 16:34:47 +07:00
bcc7053892
Removed a couple of un-pythonic lines
2015-06-17 17:13:35 +07:00
5218f41e7b
Use handler to suggest name
2015-06-17 16:35:14 +07:00
59d712e53f
Interface handler can suggest names
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The interface handler can suggest names for loaded
relations.
This can be used to remove duplicated code.
2015-06-17 16:35:01 +07:00
05e13bfeac
Use the new class
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Simplify error reporting with a new function.
2015-06-16 13:22:58 +07:00
226b340969
Create class in maintenance module to help the UIs
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The class has methods commonly used by user interfaces, so that
they don't need to be implemented multiple times by different
UIs.
2015-06-16 13:15:11 +07:00
8daaf599df
Removed debian patch for encoding in tests
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The encoding is set in the source code now, so
the patch is no longer necessary.
2015-06-16 10:32:40 +07:00
cb8a1563c7
Using new field for python version
2015-06-13 19:15:43 +07:00
923e515535
Fix the version checker for python3
2015-06-13 17:39:42 +07:00
Salvo 'LtWorf' Tomaselli