I have two very distinct regions of my page that I would like to swap between based on a the setting of a dtml-var.
The variable is loaded when the page is built and is called GENDER_DESC. I can display the contents with <dtml-var GENDER_DESC>, the GENDER_DESC object will either be null, Female or Male.
What I would like to do is have a dtml-if statement that switches the content based on the state of that GENDER_DESC variable.
I have tried something like this:
<dtml-if expr="GENDER_DESC = 'Female'">
<img src="student_photo?key=&dtml-SID;" style="height:140px; width:190px; border:5px solid black "/>
</dtml-if>
And a few other variations on that concept, but I cannot get the syntax correct.
How would I go about doing this?
DTML expressions need to be valid Python. In Python, "=" is the assignment operator. You probably want to test equality; the operator for that is "==".
Related
Sometimes it is useful to assign a 'tag', which can be a simple string, to a matplotlib artist in order to later find it easily.
If we imagine a scenario where say plt.Line2D had a property called tag which can be retrieved using plt.Line2D.get_tag() it would be very easy to find it later in a complicated plot.
The only thing I can find that looks remotely similar is the group ID: for example line.set_gid() and line.get_gid(). I haven't found any good documentation on this. The only reference is this. Is this meant for such use as described above? Is it reserved for other operations in matplotlib?
This would be very useful for grouping different artists and then performing operations on them later, for example:
for line in ax.get_lines():
if line.get_tag() == 'group A'
line.set_color('red')
# or whatever other operation
Does such a thing exist?
You can use the gid for such purposes. The only side-effect is that those names will appear in a saved svg file as the gid tag.
Alternatively you can assign any attribute to a python object.
line, = plt.plot(...)
line.myid = "group A"
just make sure not to use any existing attribute in such case.
Im trying to create a sql query dynamically with the following syntax:
Company.joins(:founder_persons)
.where("people.first_name like people[:first_name]", {people: {first_name: 'm%'}})
But running this on the rails console gives me TypeError: can't quote Array. Im guessing this is not how we use the where string? What's the right way to fix this error? Thanks.
One reason this error can occur is with a nested array used as SQL value.
Example:
Article.where(author: ['Jane', 'Bob'])
works, but:
Article.where(author: ['Jane', ['Bob']])
would give the error. A quick fix would be to run flatten on the array.
(Mentioning this since this page comes up when searching for the confusing error "Can't quote array".)
You could bind any value and then assign it, this way they should coincide in numbers, like:
Model.joins(:join_table)
.where('models.first_attribute LIKE ? AND models.second_attribute LIKE ?', value_for_first_attr, value_for_second_attr)
If using an array you should access each index you want to compare, or you can precede a splat *, and specify just one value, like:
Model.joins(:join_table)
.where('models.first_attribute LIKE ? AND models.second_attribute LIKE ?', *array_of_values)
Note although this way you're passing the "whole" array it should also coincide in size or numbers, otherwise it'd raise an ActiveRecord::PreparedStatementInvalid error depending if there are more or less elements than needed.
could someone tell me in what way I can display the items in a view kanban with a specific color according to the state that is the record.
I'm trying something like this
<div t-attf-class="#{record.state=='scheduled' ? oe_kanban_color_#{kanban_getcolor(1)} : oe_kanban_color_#{kanban_getcolor(0)}">
but I looked ALL elements and not only those who are in the "scheduled".
Thanks :)
If you have copy/pasted exactly what you typed in the view definition, then your t-attf- class attribute is malformed, and all record will have the following class:
class="#{record.state=='scheduled' ? oe_kanban_color_1 : oe_kanban_color_0"
which, due to CSS class precedence, will cause them all to have the oe_kanban_color_1 style.
A few hints:
To avoid coloring some records, you can omit the oe_kanban_color_X entirely in some cases
You can use a t-att-class attribute to allow arbitrary Javascript expressions, depending on what you want to do. In contrast, t-attf-class only allows replacing placeholders.
When comparing field values with Javascript operators you normally want to use the value or raw_value of the field, rather that the Field object itself. value will only differ from raw_value when the value needs specific rendering, such as dates, numbers, etc.
The kanban_getcolor() function accepts any integer or string and returns one of the 10 default kanban color indexes.
Based on the above, the following might be closer to what you tried to do (note the t-att-class attribute:
<div t-att-class="record.state.value == 'scheduled' ?
'oe_kanban_color_1' :
'oe_kanban_color_0' ">
Alternatively, you could use t-attf-class and let kanban_getcolor() pick a color based on the state string:
<div t-attf-class="oe_kanban_color_#{kanban_getcolor(record.state.value)}">
That last example is similar to what is done in many default kanban views in the official OpenERP distribution.
I have got a term from which I want to get set of variables name.
Eg. input: my_m(aa,b,B,C,max(D,C),D)
output: [B,C,D] (no need to be ordered as order of appearance in input)
(That would call like set_variable_name(Input,Output).)
I can simply get [B,C,D,C,D] from the input, but don't know how to implement set (only one appearance in output). I've tried something like storing in rbtrees but that failed, because of
only_one([],T,T) :- !.
only_one([X|XS],B,C) :- rb_in(X,X,B), !, only_one(XS,B,C).
only_one([X|XS],B,C) :- rb_insert(B,X,X,U), only_one(XS,U,C).
it returns tree with only one node and unification like B=C, C=D.... I think I get it why - because of unification of X while questioning rb_in(..).
So, how to store only once that name of variable? Or is that fundamentally wrong idea because we are using logic programming? If you want to know why I need this, it's because we are asked to implement A* algorithm in Prolog and this is one part of making search space.
You can use sort/2, which also removes duplicates.
Can someone help me to bring this code working? I have several select fields and I only want the last one in my variable.
variable = browser.elements_by_xpath('//div[#class="nested-field"]//select[last()]
Thanks!
This is a FAQ: The [] operator in XPath has higher precedence (priority) than the // pseudo-operator. This is why brackets must be used to change the default operator priorities. There are at least several similar questions with good explanations -- search for them and read and understand.
Instead of:
//div[#class="nested-field"]//select[last()]
Use:
(//div[#class="nested-field"]//select)[last()]
is the class attribute an exact match?
if the mark up is like this
<div class="nested-field other">
...
then you'll have to either match by the exact class or use xpath contains.