php - Store URL with wildcards in MySQL and return matches -


i'm writing php router, lookups page's id in database such query

select `id` `pages` '/about/test' regexp `url` order `url`

from such table

id  type_id url             name    lookup   1   0       /about/[^/]*    null    null 2   1       /about/company  null    null

so gets id 2 on '/about/company' , id 1 on /about/whatever on first row of result

i'm looking best way retrieve wildcard values mysql, e.g. id of '/about/[^/]+' entry , 'test' second argument when passing '/about/test'; , id when passing '/about/company'

simply, want variadic number of columns, first column return id , others - wildcard values in right order

let me assume have flag specifies if wildcard pattern or simple comparison.

if want matches, can do:

select `id` `pages` '/about/test' regexp `url` , url_has_wildcard = 0 union select `id` `pages` '/about/test' regexp `url` , url_has_wildcard = 1 ,       not exists (select 1                   pages                   '/about/test' regexp `url` , url_has_wildcard = 0                  );

you can define such flag using -- else -- regular expression. say, this:

where '/about/test' regexp `url` ,       (url regexp '^[a-za-z0-9/]*$') -- or whatever valid characters

if want 1 row returned, can do:

select `id` `pages` '/about/test' regexp `url`  order (url regexp '^[a-za-z0-9/]*$') desc limit 1;

-

Comments

Post a Comment

Popular posts from this blog

many to many - Django Rest Framework ManyToMany filter multiple values -

i have 2 models, 1 defining users, other defining labels on these users. using django rest framework create api. able query users @ least labels ids 1 , 2. for instance users' labels are: [(1,2), (1,2,3), (2,3), (1,3)] want query return [(1,2), (1,2,3)] . so far, i've managed query users given label (let's id=1) doing: /api/users/?labels=1 , unable query users labels 1 , 2. i've tried /api/users/?labels=1,2 or /api/users/?labels=1&labels=2 return invalid users, i.e. users without labels 1 or 2... any welcome. thanks, dimitry github test repo: https://github.com/thedimlebowski/drf-m2m-filter code: models.py class label(models.model): name = models.charfield(max_length = 60) class user(models.model): labels = models.manytomanyfield(label) filters.py class userfilter(django_filters.filterset): labels = django_filters.filters.baseinfilter( name='labels', lookup_type='in', ) class meta:...
Read more

java - Jasper subreport showing only one entry from the JSON data source when embedded in the Title band -

Image
i having issues populating data in subreport in title band of main report. data populated correctly in subreport in detail band of main report. trying find wrong in json query. appreciated. json sample data source (expenses.json) { "expenses": { "date": "8 sep 2016", "accounts": [ { "title": "xyz corp (111)", "accountname": "xyz corp", "accountnumber": "111", "transactions": [ { "date": "21 jun 2016", "name": "gas", "price": "17.50" }, { "date": "12 may 2016", "name": "shopping", "price": "111.99" }, { "date": "30 apr 2016", "name...
Read more

Java Entity Manager - JSON reader was expecting a value but found 'db' -

i have code working: entitymanager entitymanager = getentitymanager(); entitymanager.gettransaction().begin(); string query = "db.band.find({})"; list<band> list = (list<band>) entitymanager.createnativequery(query, band.class).getresultlist(); entitymanager.close(); return list; it returns list no problem. want sort list date : entitymanager entitymanager = getentitymanager(); entitymanager.gettransaction().begin(); string query = "db.band.find({something__id:objectid(\"" + myid + "\")}).sort({\"somethingelse.date\":-1})"; list<band> list = (list<band>) entitymanager.createnativequery(query, band.class).getresultlist(); entitymanager.close(); return list; my console gives me message: org.bson.json.jsonparseexception: json reader expecting value found 'db' i checked string working in mongo console , did. ideas? edit: tried putting "something__id" between quotes because would...
Read more