Under the locations table are some data like name, longitude, latitude, etc. From the result on the table(attached image), instead of using the UID for Location Name, I'll use the "name" of the location which is under that child. The structure of my locations table is on the picture too.
How can I convert the "location_id" to "name" on the table. Instead of me putting the generated ID on the "Location Name", I'll replace it with the actual "name" which is "Luneta Park".
Thanks!
Try
locationsHistoryCount.push({
location_name : location.val().name,
historyCount : visitCount
})
You have already used val() in history.val().location_id so similarly use it for locations table too.
Also please post the code instead of snapshot of it.
fixed it using this:
locations.forEach((location) => {
if(location.val().location_id === histories.val().location_id){
locationName = location.val().name;
}
});
then pushed it:
locationsHistoryCount.push({locationName: location.val().name, historyCount: visitCount});
Related
In my first attempt to develop something in Ruby on Rails :) ... I have a list of names stored in fields "first_name" and "last_name". In my Person model, I have defined something like this:
def sort_name
sort_name = last_name + ',' + first_name
end
Now I want to show all persons shown in a list, sorted by sort_name, but (in my controller) something like
#persons = Person.order(:sort_name)
doesn't work (Unknown column 'sort_name' in 'order clause'). How do reference to the calculated field sort_name in my controller?
I am sure this is a "oh my god I am so stupid moment" but happy for any advise!
If the model Person has the fields name, first_lastname and second_lastname, you can do the next:
Person.order(:name, :first_lastname, :second_lastname)
By default is ordering in ascending way. Also you can put if you want ascending or descending way for each field:
Person.order(name: :asc, first_lastname: :desc, second_lastname: :asc)
Additional if you want add a column with the complete name, you can use select, using postgresql the code would be:
people = Person.order(
name: :asc, first_lastname: :desc, second_lastname: :asc
).select(
"*, concat(name,' ', first_lastname, ' ',second_lastname) as sort_name"
)
people[0].sort_name
# the sort_name can be for example "Adán Saucedo Salas"
I have a search request written as
import sqlite3
conn = sqlite3.connect('locker_data.db')
c = conn.cursor()
def search1(teacher):
test = 'SELECT Name FROM locker_data WHERE Name or Email LIKE "%{0}%"'.format(teacher)
data1 = c.execute(test)
return data1
def display1(data1):
Display1 = []
for Name in data1:
temp1 = str(Name[0])
Display1.append("Name: {0}".format(temp1))
return Display1
def locker_searcher(teacher):
data = display1(search1(teacher))
return data
This allows me to search for the row containing "Mr FishyPower (Mr Swag)" or "Mr FishyPower / Mr Swag" with a search input of "FishyPower". However, when I try searching with an input of "Swag", I am then unable to find the same row.
In the search below, it should have given me the same search results.
The database is just a simple 1x1 sqlite3 database containing 'FishyPower / Mr Swag'
Search Error on 'Swag'
Edit: I technically did solve it by limiting the columns being searched to only 'Name' but I intended the code search both the 'Name' and 'Email' columns and output the results as long as the search in within either or both columns.
Edit2: SELECT Name FROM locker_data WHERE Email LIKE "%{0}%" or Name LIKE "%{0}%" was the right way to go.
I'm gonna guess that Mr. FishyPower's email address is something like mrFishyPower#something.com. The query is only comparing Email to teacher. If it was
WHERE Name LIKE "%{0}%"
OR Email LIKE "%{0}%"'
you would (probably) get the result you want.
I am fairly new to Scalding and I am trying to write a scalding program that takes as input 2 datasets:
1) book_id_title: ('id,'title): contains the mapping between book ID and book title, Both are strings.
2) book_sim: ('id1, 'id2, 'sim): contains the similarity between pairs of books, identified by their IDs.
The goal of the scalding program is to replace each (id1, id2) in book_ratings with their respective titles by looking up the book_id_title table. However, I am not able to retrieve the title. I would appreciate it if someone could help with the getTitle() function below.
My scalding code is as follows:
// read in the mapping between book id and title from a csv file
val book_id_title =
Csv(book_file, fields=book_format)
.read
.project('id,'title)
// read in the similarity data from a csv file and map the ids to the titles
// by calling getTitle function
val result =
book_sim
.map(('id1, 'id2)->('title1, 'title2)) {
pair:(String,String)=> (getTitle(pair._1), getTitle(pair._2))
}
.write(out)
// function that searches for the id and retrieves the title
def getTitle(search_id: String) = {
val btitle =
book_id_title
.filter('id){id:String => id == search_id} // extract row matching the id
.project('title) // get the title
}
thanks
Hadoop is a batch processing system and there is no way to lookup data by index. Instead, you need to join book_id_title and book_sim by id, probably two times: for left and right ids. Something like:
book_sim.joinWithSmaller('id1->id, book_id_title).joinWithSmaller('id2->id, book_id_title)
I am not very familiar with the field-based API so consider the above as a pseudocode. You also need to add appropriate projections. Hopefully, it still gives you an idea.
Hi I am trying to get some referenced data from another table,
Data structure:
Table PartDetail
-id
-OperationTypeID(foreign key)
-DateAdded
Table OperationType
-id
-Description
I am trying something like this:
$crud = $this->add('MVCGrid', array('allow_edit'=>false));
$crud->setModel('Model_PartDetail',array('DateAdded'));
But then I want to see the "description" from table OperationType, because on my PartDetail model I declare my relationship like this:
$this->hasOne('OperationType','OperationTypeID','Description')
->mandatory(true)
->caption('Operation Type');
for example in this case I want to see the description from the table OperationType
I tried:
$crud->setModel('Model_PartDetail',array('DateAdded','OperationType'));
but is not working, only works with:
$crud->setModel('Model_PartDetail',array('DateAdded','OperationTypeID'));
but I get only the ID number, not the description.
How this works?
I was able to solved it.
on the model you need to redefine it as
$ref = $this->add('Field_Reference', 'OperationTypeID');
$ref->dereferenced_field='OperationTypeDescription';
$m = $this->add('Model_OperationType');
$m->addField('D'); // <-- actually seems that this line is not working
$ref->setModel($m, 'Description');
And then in the page you can actually added as OperationTypeDescription:
$crud->setModel('Model_PartDetail', array('DateAdded', 'OperationTypeDescription'));
I need to get the value of the item clicked and the name of the columns.
for each(item in colunas) {
var itemok:String = item.dataField;
Alert.show(''+datagridlist.selectedItem.itemok); // show value of column
}
But this way it returns 'undefined'.
But if I put the name already in function, I can get the correct data, example:
Alert.show(''+datagridlist.selectedItem.create); // create is a column name in mysql
But this variable must be created dynamically, example:
var itemok:String = item.dataField;
Alert.show(''+datagridlist.selectedItem.itemok); // show value of column
Could someone help me? I'm at it on time and I can not convert the string to column name.
I thank you all now
for each(item in colunas)
{
var itemok:String = item.dataField;
Alert.show(''+datagridlist.selectedItem[itemok]);
}
The dot syntax to access properties/fields works only with property names. When the property name is stored in a string, use square brackets.
var t:String = "value";
//The following three lines are the same and will work
trace(something.value);
trace(something["value"]);
trace(something[t]);
//but this one won't
trace(something.t);