I have 1 database and inside there are maybe say 3 tables, users, user_profile, user_stats. I would like to ask is it possible to have these 3 tables in 1 model file? If user were to visit User A profile, it will show all the User A records from these 3 tables. I can't find it anywhere whether is it possible in CI4. Hope someone here can guide me on this. Thanks in advance guys!
You will need to override the find method. I have done it for findAll and haven't tried for find a method. So you may need to improvise on the following logic. There are three places where based on the condition we are fetching the rows, one check for the array, another for a single row, and last is the default one. So you will need to modify this behavior.
Replace :
$row = $builder
With your custom builder query such as following:
$row = $builder->select("users.*");
$builder->join('user_profile', 'user_profile.id = users.id','inner');
$builder->join('user_stats', 'user_stats.id = users.id','inner');
->whereIn($this->table . '.' . $this->primaryKey, $id)
->get();
You will need to replace the last query according to the conditions in find method and also instead of mentioning users explicitly you should use $this->table and similar for the primary key instead of id, you should use $this->primaryKey.
Related
It seems to be a simple question but I have a hard time to find an answer to it. I already have a project with several parameters (project and database parameters). I would like to obtain the LCA results for several scenarios with my parameters having different values each time. I was thinking of the following simple procedure:
change the parameters' value,
update the exchanges in my project,
calculate the LCA results.
I know that the answer should be in the documentation somewhere, but I have a hard time to understand how I should apply it to my ProjectParameters, DatabaseParameters and ActivityParameters.
Thanks in advance!
EDIT: Thanks to #Nabla, I was able to come up with this:
For ProjectParameter
for pjparam in ProjectParameter.select():
if pjparam.name=='my_param_name':
break
pjparam.amount = 3
pjparam.save()
bw.parameters.recalculate()
For DatabaseParameter
for dbparam in DatabaseParameter.select():
if dbparam.name=='my_param_name':
break
dbparam.amount = 3
dbparam.save()
bw.parameters.recalculate()
For ActivityParameter
for param in ActivityParameter.select():
if param.name=='my_param_name':
break
param.amount = 3
param.save()
param.recalculate_exchanges(param.group)
You could import DatabaseParameter and ActivityParameter iterate until you find the parameter you want to change, update the value, save it and recalculate the exchanges. I think you need to do it in tiers. First you update the project parameters (if any) then the database parameters that may depend on project parameters and then the activity parameters that depend on them.
A simplified case without project parameters:
from bw2data.parameters import ActivityParameter,DatabaseParameter
# find the database parameter to be updated
for dbparam in DatabaseParameter.select():
if (dbparam.database == uncertain_db.name) and (dbparam.name=='foo'):
break
dbparam.amount = 3
dbparam.save()
#there is also this method if foruma depend on something else
#dbparam.recalculate(uncertain_db.name)
# here updating the exchanges of a particular activity (act)
for param in ActivityParameter.select():
if param.group == ":".join(act.key):
param.recalculate_exchanges(param.group)
you may want to update all the activities in the project instead of a single one like in the example. you just need to change the condition when looping through the activity parameters.
I have a type ORM query that returns five columns. I just want the company column returned but I need to select all five columns to generate the correct response.
Is there a way to wrap my query in another select statement or transform the results to just get the company column I want?
See my code below:
This is what the query returns currently:
https://i.stack.imgur.com/MghEJ.png
I want it to return:
https://i.stack.imgur.com/qkXJK.png
const qb = createQueryBuilder(Entity, 'stats_table');
qb.select('stats_table.company', 'company');
qb.addSelect('stats_table.title', 'title');
qb.addSelect('city_code');
qb.addSelect('country_code');
qb.addSelect('SUM(count)', 'sum');
qb.where('city_code IS NOT NULL OR country_code IS NOT NULL');
qb.addGroupBy('company');
qb.addGroupBy('stats_table.title');
qb.addGroupBy('country_code');
qb.addGroupBy('city_code');
qb.addOrderBy('sum', 'DESC');
qb.addOrderBy('company');
qb.addOrderBy('title');
qb.limit(3);
qb.cache(true);
return qb.getRawMany();
};```
[1]: https://i.stack.imgur.com/MghEJ.png
[2]: https://i.stack.imgur.com/qkXJK.png
TypeORM didn't meet my criteria, so I'm not experienced with it, but as long as it doesn't cause problems with TypeORM, I see an easy SQL solution and an almost as easy TypeScript solution.
The SQL solution is to simply not select the undesired columns. SQL will allow you to use fields you did not select in WHERE, GROUP BY, and/or ORDER BY clauses, though obviously you'll need to use 'SUM(count)' instead of 'sum' for the order. I have encountered some ORMs that are not happy with this though.
The TS solution is to map the return from qb.getRawMany() so that you only have the field you're interested in. Assuming getRawMany() is returning an array of objects, that would look something like this:
getRawMany().map(companyRecord => {return {company: companyRecord.company}});
That may not be exactly correct, I've taken the day off precisely because I'm sick and my brain is fuzzy enough I was making too many stupid mistakes, but the concept should work even if the code itself doesn't.
EDIT: Also note that map returns a new array, it does not modify the existing array, so you would use this in place of the getRawMany() when assigning, not after the assignment.
I'm able to generate query for multi inserts or update thanks to pg-promise helpers but I was wondering if I could follow the advice of the author and put all queries outside of my javascript code (See here https://github.com/vitaly-t/pg-promise/wiki/SQL-Files and here : https://github.com/vitaly-t/pg-promise-demo).
When I use the insert helpers, the return query looks like :
INSERT INTO "education"("candidate_id","title","content","degree","school_name","start_date","still_in","end_date","picture_url") VALUES('6','My degree','Business bachelor','Bachelor +','USC','2018-05-15T02:00:00.000+02:00'::date,false,null::date,null),('6','Another degree','Engineering','Master degree','City University','2018-05-15T02:00:00.000+02:00'::date,false,null::date,null)
The idea is that I don't know how many inserts I want to do at the same time, so it has to be dynamic.
The following code doesn't work as I'm passing an array of object instead of an object :
db.none(`INSERT INTO "education"("candidate_id","title","content","degree","school_name","start_date","still_in","end_date","picture_url")
VALUES($<candidate_id>, $<title>, $<content>, $<degree>, $<school_name>, $<start_date>, $<still_in>, $<end_date>, $<picture_url>)`, data)
This code spreads the object but is still not correct to make a proper query :
db.none(`INSERT INTO "education"("candidate_id","title","content","degree","school_name","start_date","still_in","end_date","picture_url")
VALUES($1:list)`,
[data])
Any idea ? Is it at least possible or in the case where I don't know how many records I want to insert in advance I have to call pgp.helpers everytime ?
You confuse static and dynamic SQL. SQL files are there for SQL queries that are mainly static, i.e. you still can inject dynamically a lot, but when most of the query is dynamic, there is no longer any point putting it into an SQL file.
And the helpers namespace is there for dynamic queries only. So you are asking about two separate things, to join things that do not need to be joined.
Sorry for being newbie for NodeJs and table query, my question's,
How I could create a query using Nodejs pakcage "azure-storage-node", which selects the sum/addition of two coloumns 'start' and 'period' , if the addition is greater than a threshold it will take the whole raw, my tries which didn't work is something like this,
var query = new azure.TableQuery();
total = query.select(['start']) + query.select(['period']);
query.where('total > ?' , 50000);
or may be something like this,
var query = new azure.TableQuery()
.where('start + period gt 50000');
but it throws an error of '+'.
Thanks
What you're trying to accomplish is not possible with Azure Tables at least as of today as Azure Tables has limited querying support and support for computed columns (if I may say so) is not there.
There are two possible solutions:
Have an attribute called total in your entities that will contain the value i.e. start + period. You calculate this value when you're inserting or updating the entity and store it at that time.
Do this filtering on the client side. For this you will need to download all related entities and then apply this filtering on the client side on the data that you fetched.
I need to create a query where the params are like:
queryParams.put("path", "/content/myFolder");
queryParams.put("1_property", "myProperty");
queryParams.put("1_property.operation", "exists");
queryParams.put("p.limit", "-1");
But, I need to exclude a certain path inside this blanket folder , say: "/content/myFolder/wrongFolder" and search in all other folders (whose number keeps on varying)
Is there a way to do so ? I didn't find it exactly online.
I also tried the unequals operation as the parent path is being saved in a JCR property, but still no luck. I actually need unlike to avoid all occurrences of the path. But there is no such thing:
path=/main/path/to/search/in
group.1_property=cq:parentPath
group.1_property.operation=unequals
group.1_property.value=/path/to/be/avoided
group.2_property=myProperty
group.2_property.operation=exists
group.p.or=true
p.limit=-1
This is an old question but the reason you got more results later lies in the way in which you have constructed your query. The correct way to write a query like this would be something like:
path=/main/path/where
property=myProperty
property.operation=exists
property.value=true
group.p.or=true
group.p.not=true
group.1_path=/main/path/where/first/you/donot/want/to/search
group.2_path=/main/path/where/second/you/donot/want/to/search
p.limit=-1
A couple of notes: your group.p.or in your last comment would have applied to all of your groups because they weren't delineated by a group number. If you want an OR to be applied to a specific group (but not all groups), you would use:
path=/main/path/where
group.1_property=myProperty
group.1_property.operation=exists
group.1_property.value=true
2_group.p.or=true
2_group.p.not=true
2_group.3_path=/main/path/where/first/you/donot/want/to/search
2_group.4_path=/main/path/where/second/you/donot/want/to/search
Also, the numbers themselves don't matter - they don't have to be sequential, as long as property predicate numbers aren't reused, which will cause an exception to be thrown when the QB tries to parse it. But for readability and general convention, they're usually presented that way.
I presume that your example was just thrown together for this question, but obviously your "do not search" paths would have to be children of the main path you want to search or including them in the query would be superfluous, the query would not be searching them anyway otherwise.
AEM Query Builder Documentation for 6.3
Hope this helps someone in the future.
Using QueryBuilder you can execute:
map.put("group.p.not",true)
map.put("group.1_path","/first/path/where/you/donot/want/to/search")
map.put("group.2_path","/second/path/where/you/donot/want/to/search")
Also I've checked PredicateGroup's class API and they provide a setNegated method. I've never used it myself, but I think you can negate a group and combine it into a common predicate with the path you are searching on like:
final PredicateGroup doNotSearchGroup = new PredicateGroup();
doNotSearchGroup.setNegated(true);
doNotSearchGroup.add(new Predicate("path").set("path", "/path/where/you/donot/want/to/search"));
final PredicateGroup combinedPredicate = new PredicateGroup();
combinedPredicate.add(new Predicate("path").set("path", "/path/where/you/want/to/search"));
combinedPredicate.add(doNotSearchGroup);
final Query query = queryBuilder.createQuery(combinedPredicate);
Here is the query to specify operator on given specific group id.
path=/content/course/
type=cq:Page
p.limit=-1
1_property=jcr:content/event
group.1_group.1_group.daterange.lowerBound=2019-12-26T13:39:19.358Z
group.1_group.1_group.daterange.property=jcr:content/xyz
group.1_group.2_group.daterange.upperBound=2019-12-26T13:39:19.358Z
group.1_group.2_group.daterange.property=jcr:content/abc
group.1_group.3_group.relativedaterange.property=jcr:content/courseStartDate
group.1_group.3_group.relativedaterange.lowerBound=0
group.1_group.2_group.p.not=true
group.1_group.1_group.p.not=true