Databases
StackOverflow2013
Postsdbo
POA class that only allows me to fill instances of the first type created
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POA class that only allows me to fill instances of the first type created
    primarykey
    data
    text
    <p>This is what it does: The content of the first instance of the class ( in this case mok1 ) gets filled with water. I can fill it infinitely but as soon as the first instance is created, I can only fill that instance and generate a error by any other instance. Is there a cleaner and better way to do this? Now I use the difference in the class's var and the instance's var which is confusing for people because it are different variables. Thnx guys;)</p> <pre><code>class mok: _content = 'EMPTY' def __init__( self flavour ): self.flavour = flavour def fill( self ): if mok._content == 'EMPTY': self._content = '1' mok._content = 1 if self._content == '1': print 'Filling mok!' else: print 'Error: This is a different mok!' mok1 = mok( 'thea' ) mok2 = mok( 'coffee' ) mok1.fill() mok1.fill() mok2.fill() mok1.fill() </code></pre> <p>output:</p> <pre><code>Filling mok! Filling mok! Error: This is a different mok! Filling mok! </code></pre> <p>I've found the solution:</p> <pre><code>class mok: _mok_with_water = 0 def __init__( self, color, flavour ): self.color = color self.flavour = flavour def printcolor( self ): print 'Mok color =', self.color print 'Mok flavour =', self.flavour def fill( self ): self.printcolor() if mok._mok_with_water == 0: mok._mok_with_water = self if mok._mok_with_water == self: print 'Filling mok!' else: print 'Error: This is a different mok!' def empty( self ): if self == mok._mok_with_water: mok._mok_with_water = 0 mok1 = mok( 'geel', 'thee' ) mok2 = mok( 'zwart', 'koffie' ) mok1.fill() mok1.fill() mok2.fill() obj = mok1.empty() obj = mok2.fill() obj = mok1.fill() </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJim Clermonts
    1. USJim Clermonts
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POA class that only allows me to fill instances of the first type created
      1. This table or related slice is empty.
      1. VTClose
    2. VO
      singulars
      1. POA class that only allows me to fill instances of the first type created
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhy? Just... why??
      singulars
      1. POA class that only allows me to fill instances of the first type created
      1. This table or related slice is empty.
    2. COI can't figure out what you are trying to do or why you would want to do it.
      singulars
      1. POA class that only allows me to fill instances of the first type created
      1. USKarl Knechtel
    3. COI suspect you have misunderstood your assignment.
      singulars
      1. POA class that only allows me to fill instances of the first type created
      1. USdkamins
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload