How to use connection string with sequel for postgresql












0














I wanted to connect to postgresql database using connection string in form of



host=localhost user=x password=y dbname=z


this works fine when passed to psql



$ psql "host=localhost user=x password=y dbname=z"


and when passed to the PG gem



> PG.connect("host=localhost user=x password=y dbname=z")


however it fails when I try to pass it into sequel



> Sequel.postgres(constr)
Sequel::DatabaseConnectionError: PG::ConnectionBad: could not connect to server: No such file or directory


How can I make sequel connect to my database?










share|improve this question






















  • Is your app a rails application?
    – hernanvicente
    Nov 19 '18 at 21:52










  • combination of hanami and grape if it helps
    – graywolf
    Nov 19 '18 at 22:19
















0














I wanted to connect to postgresql database using connection string in form of



host=localhost user=x password=y dbname=z


this works fine when passed to psql



$ psql "host=localhost user=x password=y dbname=z"


and when passed to the PG gem



> PG.connect("host=localhost user=x password=y dbname=z")


however it fails when I try to pass it into sequel



> Sequel.postgres(constr)
Sequel::DatabaseConnectionError: PG::ConnectionBad: could not connect to server: No such file or directory


How can I make sequel connect to my database?










share|improve this question






















  • Is your app a rails application?
    – hernanvicente
    Nov 19 '18 at 21:52










  • combination of hanami and grape if it helps
    – graywolf
    Nov 19 '18 at 22:19














0












0








0







I wanted to connect to postgresql database using connection string in form of



host=localhost user=x password=y dbname=z


this works fine when passed to psql



$ psql "host=localhost user=x password=y dbname=z"


and when passed to the PG gem



> PG.connect("host=localhost user=x password=y dbname=z")


however it fails when I try to pass it into sequel



> Sequel.postgres(constr)
Sequel::DatabaseConnectionError: PG::ConnectionBad: could not connect to server: No such file or directory


How can I make sequel connect to my database?










share|improve this question













I wanted to connect to postgresql database using connection string in form of



host=localhost user=x password=y dbname=z


this works fine when passed to psql



$ psql "host=localhost user=x password=y dbname=z"


and when passed to the PG gem



> PG.connect("host=localhost user=x password=y dbname=z")


however it fails when I try to pass it into sequel



> Sequel.postgres(constr)
Sequel::DatabaseConnectionError: PG::ConnectionBad: could not connect to server: No such file or directory


How can I make sequel connect to my database?







ruby postgresql sequel






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 19 '18 at 19:31









graywolfgraywolf

2,50642752




2,50642752












  • Is your app a rails application?
    – hernanvicente
    Nov 19 '18 at 21:52










  • combination of hanami and grape if it helps
    – graywolf
    Nov 19 '18 at 22:19


















  • Is your app a rails application?
    – hernanvicente
    Nov 19 '18 at 21:52










  • combination of hanami and grape if it helps
    – graywolf
    Nov 19 '18 at 22:19
















Is your app a rails application?
– hernanvicente
Nov 19 '18 at 21:52




Is your app a rails application?
– hernanvicente
Nov 19 '18 at 21:52












combination of hanami and grape if it helps
– graywolf
Nov 19 '18 at 22:19




combination of hanami and grape if it helps
– graywolf
Nov 19 '18 at 22:19












1 Answer
1






active

oldest

votes


















0














You could use a string with the connection information, for example:



conn_str = 'postgres://localhost/database_name?user=user&password=password'


DB = Sequel.connect(conn_str)


Check the Sequel's documentation of how to open connections with a hash



DB = Sequel.connect(
adapter: 'postgres',
host: 'localhost',
database: 'database_name',
user: 'database_user',
password: 'password'
)


Then you should be able to run:



DB[:table_name].where(:attribute => 5000..10000)


Or you could use the postgres method directly:



DB = Sequel.postgres('my_db', :user => 'user', :password => 'password', :host => 'localhost')


Check devhints open connection shortcuts






share|improve this answer























  • Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
    – graywolf
    Nov 19 '18 at 22:20










  • Ok, I'll update my answer
    – hernanvicente
    Nov 19 '18 at 22:31











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














You could use a string with the connection information, for example:



conn_str = 'postgres://localhost/database_name?user=user&password=password'


DB = Sequel.connect(conn_str)


Check the Sequel's documentation of how to open connections with a hash



DB = Sequel.connect(
adapter: 'postgres',
host: 'localhost',
database: 'database_name',
user: 'database_user',
password: 'password'
)


Then you should be able to run:



DB[:table_name].where(:attribute => 5000..10000)


Or you could use the postgres method directly:



DB = Sequel.postgres('my_db', :user => 'user', :password => 'password', :host => 'localhost')


Check devhints open connection shortcuts






share|improve this answer























  • Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
    – graywolf
    Nov 19 '18 at 22:20










  • Ok, I'll update my answer
    – hernanvicente
    Nov 19 '18 at 22:31
















0














You could use a string with the connection information, for example:



conn_str = 'postgres://localhost/database_name?user=user&password=password'


DB = Sequel.connect(conn_str)


Check the Sequel's documentation of how to open connections with a hash



DB = Sequel.connect(
adapter: 'postgres',
host: 'localhost',
database: 'database_name',
user: 'database_user',
password: 'password'
)


Then you should be able to run:



DB[:table_name].where(:attribute => 5000..10000)


Or you could use the postgres method directly:



DB = Sequel.postgres('my_db', :user => 'user', :password => 'password', :host => 'localhost')


Check devhints open connection shortcuts






share|improve this answer























  • Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
    – graywolf
    Nov 19 '18 at 22:20










  • Ok, I'll update my answer
    – hernanvicente
    Nov 19 '18 at 22:31














0












0








0






You could use a string with the connection information, for example:



conn_str = 'postgres://localhost/database_name?user=user&password=password'


DB = Sequel.connect(conn_str)


Check the Sequel's documentation of how to open connections with a hash



DB = Sequel.connect(
adapter: 'postgres',
host: 'localhost',
database: 'database_name',
user: 'database_user',
password: 'password'
)


Then you should be able to run:



DB[:table_name].where(:attribute => 5000..10000)


Or you could use the postgres method directly:



DB = Sequel.postgres('my_db', :user => 'user', :password => 'password', :host => 'localhost')


Check devhints open connection shortcuts






share|improve this answer














You could use a string with the connection information, for example:



conn_str = 'postgres://localhost/database_name?user=user&password=password'


DB = Sequel.connect(conn_str)


Check the Sequel's documentation of how to open connections with a hash



DB = Sequel.connect(
adapter: 'postgres',
host: 'localhost',
database: 'database_name',
user: 'database_user',
password: 'password'
)


Then you should be able to run:



DB[:table_name].where(:attribute => 5000..10000)


Or you could use the postgres method directly:



DB = Sequel.postgres('my_db', :user => 'user', :password => 'password', :host => 'localhost')


Check devhints open connection shortcuts







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 19 '18 at 22:29

























answered Nov 19 '18 at 22:00









hernanvicentehernanvicente

664615




664615












  • Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
    – graywolf
    Nov 19 '18 at 22:20










  • Ok, I'll update my answer
    – hernanvicente
    Nov 19 '18 at 22:31


















  • Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
    – graywolf
    Nov 19 '18 at 22:20










  • Ok, I'll update my answer
    – hernanvicente
    Nov 19 '18 at 22:31
















Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
– graywolf
Nov 19 '18 at 22:20




Yeah I know about this way, but I get connection string formatted as in my question from the environment and wanted to avoid having to parse it :/
– graywolf
Nov 19 '18 at 22:20












Ok, I'll update my answer
– hernanvicente
Nov 19 '18 at 22:31




Ok, I'll update my answer
– hernanvicente
Nov 19 '18 at 22:31


















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