Part 6 openDocument reports
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Hi welcome back this is section 6 of  MDriven designer overview
let's do reports, reports are really only collections of information
presented in, a well usually a paper or
something that we consider a document
so as this is the case it lends itself to
the view models just like any other
things we have looked at given the fact that
so let's add a new view model and
say that this is our report
of course we need to design, what it
supposed to hold, but what if it would be
and what if it would be a bill to pay
the rent as such it would probably be rooted in
the lease contract, so that we will call
this "rent bill report" and when it
comes to report we have a a shortcut
to add a few things that are important for
reports, add columns needed for report
so let's start with that one
we've got a template URL and a report name
so these kind of reports I'm going to
show now and is the kind that we recommend
there it was another kind of reports, but
I'm not going to talk about it and
this that I'm going to talk about is based on
the open documents done that Microsoft
submit to identification and which is
pretty good it's really very much
office as a next step open xml format so
the report file name
we need to actually say what the
resulting file is gonna be named and the
template URL is where we can find a
template to fill with data, we're going
to look at all this, but let's just add
the other data that's needed in the
report, so the apartment number
most like the rent of course, start
date of the contract and maybe we also
want the period of the rent, so maybe
this isn't rooted in the lease contract,
maybe, this happens to me all the
time that I haven't fought out my
problem it isn't finished I need to work on
it as I design the other aspects going
into the domain, so "Billable Period"
this would typically be a a month or
something maybe as a start date that is
date time and the end date and the
lease contract has many billable periods
and then heading back to my report, this
shouldn't be rooted in lease
contract it should be rooted available period
right, but then these
expressions aren't valid anymore, because
they need to follow the link up to this
contract, like that, so I can take lease
contract is gonna be the same change
like that and as you see it
automatically builts this UI, but it
doesn't really let's see what's wrong
with it two dots I was wrong and but I'm really
not interested in building a UI, so that
UI hints I see here are really just
disturbing for reports so "use placing hints: no"
not for this report, then it's a
cleaner way of looking at the just data
so if I have the apartment number the
rent and start date and end date I'm
sure what, yeah this is the start and the end date
of the lease contract, but these are
actually more like it and I would want
them all of the Billable Peiod, like that
and of course we need the name of the
person living here and  I get
I get the columns back to
lease contract, but it doesn't allow me
to navigate further than that, this false
trackway, so I need to find another way I
just add a generic column like that and
when I set the expression and I'm free
to type what I need one way is to have
the model access work for me, model access
actually brings up this diagram in the
context, that we were billable period and I
know that I want to go to lease contract
and I want to go to person
watch up here as I click the
the navigation, as I do a navigation
expression is built for me, so now
I'm on lease contract, but I want the
person that was called tenant and
on the tenant I would like the full
name, so now it has built something that
I can just copy like that and I can paste it
this wasn't exactly what I want because
I was billable period, so what I really
just one was to say "self" and lease
contracts and tenants and I didn't
actually want to select full name, I wanted
to have a full name, so doing these
justifications, so that's one way to get
help to build up the ocl
expressions, while navigating around in
your model, so now would want to name
this the full name maybe, so we have covered
this and we have covered that, but we
also want to cover this, so if the person
has multiple rented apartments
he must know what this bill is
regarding, so let's add another generic
column and following
that, let's do it the same way with the
model access, we are on a billable period,
we want to move up to lease contract, but now we want to
move to the house instead and we want
to have the street number
copy that and paste, and same here we
actually already was on a billable period
just stated self, I can see that the
context that we entered in expression is
billable period that's because we have
billable period as the root of our view model
so when I, also same here, I don't want to
select the street number I want to add street
so house street and yet another column
was gonna add a generic column like that because we
are not done, we also need the street and eventually
the city, so let's go ahead and you
can just do it this way
I go to lease contract from lease contract
we go to roles, rented apartments
and from rent apartments, we go to tenants
the street and from street we go to name
that would be another way to navigate
create the correct ocl expression
the street, and they're going to copy
this copy use the menu, so you see what I do
copy and paste, name this "the city" and from
the street don't want the name I want to
follow the role to city and grab its name
this is one way to get some flat data
but quite often you want to have lists
in reports, so let's bend over backwards to actually get a list in here
somehow, but let's say that on the bill
we also state who else lives in the
building just to get the need to get
to get them a reason to have a list in
our report, so I could do that by adding
nested View Model class full of
multilinks, but since the context I'm
in the billable period, doesn't have an actual
many association that would build our
multilink that we are only offer the
billable period all instances, so we're going
to do this manually instaed and
add generic column and add
a nested view model class, add other nested view
model class and we state nothing about it
so this column is going to be associated
to this nesting, so pick that one there
and then I get this arrow saying that
this will be detailed here
depending on what it is of course, so from
from the billable period move up
to lease contract, from lease contract and
go to the house and from the house go
back to the tenants, that will be a that
would be a list of all the other people
including myself that live in this house
and that would be a collection of person
right, so this messing should really the
of type person and  we can call it
"persons in the house"
let's call this one "persons in the house"
so all names
as columns need to be unique and all
nestings and the root must be unique
within themselves but we can reuse names
here between a column a nesting, so now
we're person and we will want to state
something about the person  on the bill
the full name, like that, so many persons
persons in the house, full name
yeah that's the data for our report but
we're going to want to build a report
as well, so we need a template URL and in
the long run this will be you a template
that situated in some internet site
somewhere, but since we are only working
locally on prototyping we on a
user standard file of some sort
and let's see where I had saved this
file it's temp\DemoModel, so let's put
I'm going just do a string here,
hardcoded string, c:\temp\DemoModel
report them late and since this is
using the open document standard and it
has the extension open document text .odt
if it's a word like report, so I'm going
to copy this and say okay on that, and I
wonder if I need to double slash these
because otherwise, it will be interpreted
as state escape sequence for the
string, so like that and now I'm gonna open
and what I really want to do is
start word actually, so that's what I
should do, save as here
gonna call it ODT like that I don't think I should have odt
there because it will be double, save
so now I have an odt okay and just to
get started we have a special tag what
we gonna do is do some report designing
and to actually poor in data here, we will use
percent and some tag that actually will
be the tag from the viewmodel, the name
from the viewmodel column, but since we
don't want to copy and paste these
we can start with generic one called %meta%
what this does is actually just showing
all the other tags save and another thing
is the squiggly lines denoting
miss spelling, it can some times
mess up our tags because in the xml file
these will be free separate notes
so let's head back to alternative settings and on the, I guess,
the language control and we say hide
spelling errors and I'll hide
grammatical errors in this document
yes, so I'm gonna save that and then this
other one we needed for that is what the
reports going to be called and again I
could just do a string, but we want some
data as well, so let's do a combination
bill for apartment and then we can
I'm gonna copy this one apartment number
asstring, because that was an
integer and then I want to append the
extension as well, so that we can open it
okay,like that let's see how we can invoke this if we
are back on our design that we're going
to refresh the model just so we know
what we have show all houses or other
show all persons ok we have a person, but
we don't really have anything on a
person, so let's just quickly add a
viewmodel to handle something that is rooted on the person
person view, we say it's a person, we say that we can see
the first name and last name and add some nestings
what if we were to add a nested singlelinks
okay we don't have any for it
multilink would create and delete this
is a quick way to enter the townhouses
so what happened was that it added some
actions to create the house and delete
the house as buttons show up here
what can we add something more?
the rented apartments guess
undo that control, I'm going to add nested
multilink with picker add and remove
rented apartments that was like
different it added a picker and add
a remove button, I want to show something
in these grids, make that one
a little larger, add a column
okay, so I'm gonna leave that as string
and instead head over to the house and watch
the default string representation, is actually, we did that
already, so that will be good for us and
for the rented apartment and that's the
house as well ok and for this one so that's nesting
and as the house as well okay,so I'm gonna add an action, so that we
can bring this one up, so what we're
going to do now is add a class action
for show, whenever we have a person
somewhere in the UI and we should be
able to show this view, that will show up
here, as a view person view
and if I double-click it I get selected here
so did a few things just to get us
going to refresh the model and show
all persons and now when I click on a person
I get the view persons view and if I
hold ctrl while I click it I get a new
tab with that person and Delsie Bad and
we can add her as a tenant and
this one and save that, we can also say
that she, we could create the house that
she owns, so that for real I guess we
added that in the default string representation
okay, so she rents here and then we got
this one show house from object
where did that come from remember I don't
it was a class action on the house
that brings up the house view, so that
will help us navigate to here, where we
see that the Delsie Bad is now also a
tenant of this, so these are the lease
contracts it would be good if we could
enter their rent or manag the billable periods here, so that was the house view
so let's look that up, the house view
and now we are suffering a bit from too
small screen, we can always zoom in to
watch details, but it would be good if we
could see it all like this alright, so yeah
we have the rent over there, but from there the lease contract and
we would like to be able to add or create billable period
so here I'm gonna add a nested view
model with create and delete for
billable period, of course I can do all these
expressions by hand, but these are just
snippets that we have found that are so
common that it's good to have them
done already, so what I did now was that
these things we are going to write
the billable period here,the same as
a presentation just hyphens to make
it as string and the billable period is
in the nested list here which is the
grid, so let's add column, I know it's
outside your screen, but I guess you know
this point out start and end date and
removed as string, like that and if
we head back and refresh the model
and we show all houses, we picked that
this one, we also have a way to set
billable period, we're going to create billable period
and now when we have billable period we would
like to do a bill for this person in
this house, for this billable period, right so
and last I'm gonna do that, well
there's something wrong here
let's see what it said view person view warning the view model does
not require a root object, so that's that
the systems telling us that since we
have this person view that we created
that apparently needs root objects
that we set it with the view, person view, but we haven't stated that it
requires root object on the view and
we should do that just to let the system
know that we are on top of things and we know what we are doing
so requires root object and if
I save and adhance and update that once again they are gone
it's from the warning wanted to do was probably to add a class
action this one and it should be on the class billable period and
let's call it Generate Bill and the executed expression on this one
so this is where all obvious down to something
self, we are billable period and we want to open a document report
open document report show that's the one
we want to do and this needs a viewmodel
and that has the date that one we did actually
so we could just enter the name here on
that the in hyphens but that would not
be very good if we change the name later
on, so it's better to be strictly
typed and go on the constant that we
have, billable period, that's the class that
it's rooted in and we have view and I
press "ctrl + Enter" to get up this little
tree that I can just copy from to
lessen my mouse movements, view models
and from that one I see that we have one
that calls rent bill report
ok so that's what I want to do with this
one, so whenever I have billable period this
action should show up, saving again and
the heading back over here let's save
this one, errors in the information
what do you mean? well the Delsie Bad must have an
apartment number and the Delsie Bad lives free
ok let's fix that then she lives an
apartment five and she still lives free
now she's gonna pay 100 and she's gonna
have a billable period, so but we need to refresh the
model and show all the houses and now
for the Delsie Bad, for this billable period
let's say it start 10/1/2016 end 10/31/2016 and when I click that,
when I get there the action since I'm now on
billable period save generic bill and
then it says errors and why, reference
not set AsByteArray and reproducing opendocument report
ok I went offline and checked it out
it turned out that since I had word
opened the template was locked
and that was the error I got from that
album, make a note of that to make it better
every statement it generate the
bill, now that I have closed to the
template in work, like get to word to
open up this so remember that
there I said that the percent meta
percent just would provide all the other templates for me
so this is the resulting report not very
good-looking, but I'm gonna copy this tags
because that's how we can pour in
our data, going to open the report
template again, so that's the template
now I'm not that interested in the
meta-thing, more interested in the data as
such, the template URL and the file
name is not interesting to me, but the
apartment number, so bill for apartment number
and then I can guess say that should be
debt and these pay dollars for the period
starting at and ending at
and of course, we are free to style this
any way we would like and just to provea point, we going to
we also have the let's save
this one and close it and that was a
report we generated and generate a
new bill and now we get this bill for apartment
bill for apartment number five
in the house at Grastensvagen
please pay a hundred dollars for their
period starting at the date and ending
at the date and we got the date time as well
we should fix that, but what
about the listing all the other tenants
in the house that we wanted to do
open up the template again
that was the report and this is the
template, and that looks like this
it's the different tag %% + persons
in the house and that's actually if
we head back to the rent bill report as
the persons in the house that's that column that nests
so how do we go about creating a table
rate, table let's do like that
Other people in the house where you live at
and of course we could use to the same
tags multiple times, so to actually this
role should be replaced over and over
depending on each person, so we do that
by setting this tag as the star tagged
in the row and then what we
actually want to show in this cell is
the full name and also lives with you sort of
so that's how we would go about getting
the effect, if we close this one and head
back and generate the bill we get
other people in the house where you live
in Grastensvagen - Hans, Dick, Delsie, so
and that's how you can do reports really
easy and it's working with the excel as well
excel like files than the extension is ods
open documents spreadsheet to fix this
to more format, that we would like, we
would head back to the report data and
say that we don't actually want to
communicate these as and as date we
would like them as strings instead and
then we can use to c# syntax for 2
ToString that takes a parametr that is
a string, that sort of helps us design
the value, I think it's like this small
"y" for the year, four letters, four
positions, four digits and that it must
be enlarge for the month because the small one
are reserve for the minutes I guess
copy that and I going to use the same on
the end date, like that, saved that head
back to the prototyper, refresh the
model and show all houses, double-click
on the house to get the first one or two
get their first view, get the first
action that navigates to view which was
this one house view, like that
and pick tenants by search we could add some
more at these, ok save let's say there's
errors because they don't have apartment
numbers, but that's okay
for me, I can live with it
ok, so this didn't turn out the way
I want to add, why not
well because I hadn't entered anything for
the Dick Smith it was for the Delsie Bad
so I'm going to generate the bill for her as well
then it's looks ok, good, as you see
this was apartment 5 but this was
important 3, so we haven't mentioned the
name in the report of course we could do
that as we have the data in there
it will be the same
just using this tag called "tenant full name"
so now we have done a few things
with our little model and one thing that
I really want to point out is that as we
do everything in the model the model
also knows everything, so if I were to right-click their rent
let's see if we can get this on screen somehow,
if I want to right-click the rent here
and "used by" then I directly see that the
the lease contract rent is used in a
constraint, ok it's also used in a
viewmodel column for the house view the
lease contract rent, it's also used in
the "rent bill report rent", so this really
is a cross reference for everything in
our model, that comes only when we
actually used to model for everything
now we have the total control of what
should happen, if the rent need to be
the concept of rent, the attribute of rent
would need to be changed in any way
where does it affect and I can have
click these straight off the lease
contract rent and the lease contract
is selected for me in the tree and I
can check the constraints for it then
and find that this constraint of
course use the rent right or wrong
that so that's real and good effect
so let's finish up this session here and
in the next one we're going to look at
images to have images and fights
uploading and downloading files etc.
so thank you for listening and I will be back

Revision as of 21:57, 15 April 2017

We create an openDocument report and fill it with data. Also some tips and tricks on how to get help in constructing ocl expressions and how to see cross reference where things are used throughout the model

To make your experience more comfortable, we set the main tags mentioned in the video to the right bar menu of this mini player. Choose the interesting subtitle on the list and immediately get to the exact theme timeplace in the video. Now you can pick any topic to be instructed without watching the whole video.


Reports View Model Editor: •Columns needed for Report • Template URL • Report File Name Model Access Form Open document text Class action for show View model root object requirement Open document report show command Tags in odt template in Word Some expressions on setting the date “Used by” cross reference index

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