This is my code to insert a few lines in my simple "series" table:
db = sequel.postgres(config['dbname'],:user=>config['user'],:password=>config['password'],:host=>config['host'],:port=>config['port'],:max_connections=>10)
#db.create_table? 'series' do
primary_key "series_id" , :autoincrement=>true
String "series_name"
end
seriesDS = db['series']
seriesDS.insert('series_name' => 'test_value')
At seriesDS.insert I get a
Sequel::DatabaseError - PG::SyntaxError: ERREUR: erreur de syntaxe sur ou près de « series »
I didn't manage to get the full SQL query for analysys in STDOUT. It's strange because I added this:
logger = Logger.new STDOUT
logger.level = Logger::DEBUG
db.loggers << logger
It appears to be generating the wrong SQL, but I have no clue to the error's source.
I'm using:
Ruby 2.2.5
Sequel 4.4.1
Postgresql 9.6
The program is launched using ruby -E utf8.
Sequel uses Ruby symbols to represent SQL identifiers. At the very least, you must use seriesDS = db[:series].
Other cases where you want an SQL identifier you should probably switch from using strings to symbols.
Related
I have mobile automation code in Ruby with locale property files and code is using JavaProperties::Properties.new(filename with path) which is returning hash and we are reading property value by providing property name.
Recently fr_CA.properties file was updated with unicode chars, something like "Solde du dernier relev\u00E9". After the update, I'm getting value "Solde du dernier relevé" instead of "Solde du dernier relevé".
I need some help how/where to provide UTF-8 conversion type.
Quick help highly appreciated.
#filePaths={
:pathTo_some_JavaProperties => #resourcesPath+"/service_"+locale+""+platform_fileName+".properties",
:pathTo_locale_other_JavaProperties => #resourcesPath+"/MoblClient_XmlService"+locale+".properties"
// more file paths
}
begin
#someHash = JavaProperties::Properties.new(#filePaths.fetch(:pathTo_some_JavaProperties))
rescue Errno::ENOENT
filesNotFound << #filePaths.fetch(:pathTo_some_JavaProperties)
end
// Reading value as #someHash['propName'] which is giving output as "Solde du dernier relevé"
Ok, here's what I am getting:
In test.properties:
item1 = Solde du dernier relev\u00E9
Then in Ruby,
> JavaProperties.load('test.properties')[:item1]
# => "item1 Solde du dernier relevé"
You should try getting your problematic code as stripped as possible, and then see if you keep getting the error.
BTW, I think you should use JavaProperties.load, not JavaProperties.new as in your sample.
I'm currently writing a moped log parser in order to monitor moped queries runtime.
It's work great for QUERY command using the runtime parameter, but INSERT and UPDATE have no runtime parameter. All INSERT and UPDATE are followed by a getLastError COMMAND which contains a runtime.
Here are some samples of moped logs:
QUERY with runtime
MOPED: 127.0.0.1:27017 QUERY database=X collection=X selector=X
flags=[] limit=-1 skip=0 batch_size=nil fields=nil runtime: 0.6950ms
INSERT without runtime but with COMMAND
MOPED: 127.0.0.1:27017 INSERT database=X collection=X documents=X flags=[]
COMMAND database=X command={:getlasterror=>1, :w=>1}
runtime: 0.4750ms
I'm pretty sure that COMMAND runtime is for the getlasterror call and not for my INSERT one.
So is there a way to get this runtime info for an INSERT query?
Instead of using a log parser, I use something like this and it works great:
ActiveSupport::Notifications.subscribe('query.moped') do |name, start, finish, id, payload|
runtime = (finish - start)*1000
moped_ops = payload[:ops]
moped_ops.each do |op|
unless op.collection == '$cmd'
query = op.class.name.split('::').last.downcase
query = op.selector.first[0].to_s.gsub(/\$/, '') if query == 'command'
DO SOMETHING WITH #{op.database}.#{op.collection}.#{query}
end
end
end
The exception I am getting is "ActiveRecord::ConnectionNotEstablished: No connection pool for ActiveRecord::Base". I am really on the deep end of the pool (no pun intended) with this one. I really don't understand the connection and connection pool handling, even as much as I have studied this problem. I'm assuming this might be scope related inside of Cucumber, but I do not know. Any and all assistance is appreciated.
Here are the details:
The exception occurs when I perform a count from a Then clause:
WorkTable.where('? is not null',col['COLUMN_NAME']).count
It does not occur if I send the sql directly through the connection:
WorkTable.connection.select_all(st.encode('utf-8')).first['nulls']
My scenario reads as follows:
Scenario: CompanyMaster test for null value
Given table dbo.base_table in stage
Then these columns are expected to be not null
| COLUMN_NAME | nulls |
| id | 0 |
| company_name | 0 |
I establish my class in my env.rb:
class WorkTable < ActiveRecord::Base
end
ActiveRecord::Base.configurations = YAML.load_file(yaml) # yaml is database.yml file name
I establish my connection in a Given clause:
Given(/^table (\w+)\.?([\w_]+) in (\w+)(?: as (\w+))?$/) do |schema,name,env,id|
#sc_name = schema_file_name(schema,name)
WorkTable.logger.info title_line("* Active table(#{#sc_name}) *")
case id
# ActiveRecord::Base.configurations[env]
...
else
WorkTable.table_name = #sc_name
WorkTable.establish_connection(env.to_sym)
# ary = get_tables(WorkTable,schema:schema)
# expect( ary.any?{|s| s.casecmp(name)==0 } ).to eq(true)
end
end
I execute my test in a Then clause:
Then(/^these columns are expected to be not null$/) do |columns|
# expected is an instance of Cucumber::Ast::Table
WorkTable.logger.info title_line('Columns cannot be null')
results = []
columns.hashes.each {|col|
results << {
'COLUMN_NAME' => col['COLUMN_NAME'],
'nulls' => WorkTable.where('? is not null',col['COLUMN_NAME']).count.to_s
}
}
columns.diff!(results,surplus_row: false)
end
It is the WorkTable.where that throws the "ActiveRecord::ConnectionNotEstablished: No connection pool for ActiveRecord::Base". Again, if I use the WorkTable.connection method, I do not get it. Also, it executes fine if I copy all the function code to single ruby script.
I see the following when I "pp WorkTable.connection":
#<ActiveRecord::ConnectionAdapters::SQLServerAdapter version: 4.2.2, mode: dblib, azure: false>
And I see the following when I "pp WorkTable.connection_pool":
#<ActiveRecord::ConnectionAdapters::ConnectionPool:0x42f5238
#automatic_reconnect=true,
#available=
#<ActiveRecord::ConnectionAdapters::ConnectionPool::Queue:0x42f4f20
#cond=
#<MonitorMixin::ConditionVariable:0x42f4ed8
#cond=
#<ConditionVariable:0x42f4de8
#waiters=[],
#waiters_mutex=#<Mutex:0x42f4d58>>,
#monitor=
#<ActiveRecord::ConnectionAdapters::ConnectionPool:0x42f5238 ...>>,
#lock=#<ActiveRecord::ConnectionAdapters::ConnectionPool:0x42f5238 ...>,
#num_waiting=0,
#queue=[]>,
#checkout_timeout=5,
#connections=
[#<ActiveRecord::ConnectionAdapters::SQLServerAdapter version: 4.2.2, mode: dblib, azure: false>],
#mon_count=0,
#mon_mutex=#<Mutex:0x42f51c0>,
#mon_owner=nil,
#reaper=
#<ActiveRecord::ConnectionAdapters::ConnectionPool::Reaper:0x42f51a8
#frequency=nil,
#pool=#<ActiveRecord::ConnectionAdapters::ConnectionPool:0x42f5238 ...>>,
#reserved_connections=
#<ThreadSafe::Cache:0x42f4fc8
#backend=
{16931712=>
#<ActiveRecord::ConnectionAdapters::SQLServerAdapter version: 4.2.2, mode: dblib, azure: false>},
#default_proc=nil>,
#size=5,
#spec=
#<ActiveRecord::ConnectionAdapters::ConnectionSpecification:0x42f55c8
#adapter_method="sqlserver_connection",
#config=
{:host=>"server_name",
:database=>"mssb_stg",
:encoding=>"utf-8",
:adapter=>"sqlserver",
:timeout=>5000}>>
Ruby 1.9.3, activerecord (4.2.0), activerecord-sqlserver-adapter (4.2.2), and cucumber (1.3.18). And sql server 2014 [this has been a bugger for me].
Thank you for you time and consideration.
dvn
== Additional detail ==
Ignore the sql-server reference. I get the same exception when I reconfigure to work with SqLite. So it is not related to db platform.
Check your env.rb, conf in supports, it seems you are making connections in steps, ideally you should do it in before_scenario or before feature file rather than per steps.
It could be possible after steps your connection is not working properly.
Our Continuous Inegration server (Hudosn) is having a strange issue when attempting to run a simple create table statement in Teradata.
This statement tests the existence of the max_call table:
unless $teradata_connection.table_exists? :arm_custom_db__max_call_attempt_parameters
$teradata_connection.run('CREATE TABLE all_wkscratchpad_db.max_call_attempt_parameters AS (SELECT * FROM arm_custom_db.max_call_attempt_parameters ) WITH NO DATA')
end
The table_exists? method does the following:
def table_exists?(name)
v ||= false # only retry once
sch, table_name = schema_and_table(name)
name = SQL::QualifiedIdentifier.new(sch, table_name) if sch
from(name).first
true
rescue DatabaseError => e
if e.to_s =~ /Operation not allowed for reason code "7" on table/ && v == false
# table probably needs reorg
reorg(name)
v = true
retry
end
false
end
So as per the from(name).first line, the test which this method is performing is just a simple select statement, which, in SQL, looks like: SELECT TOP 1 MAX(CAST(MAX_CALL_ATTEMPT_CNT AS BIGINT)) FROM ALL_WKSCRATCHPAD_DB.MAX_CALL_ATTEMPT_PARAMETERS
The above SQL statement executes perfectly fine within Teradata SQL Assistant, so it's not a SQL syntax issue. The generic ID which our testing suite (Rubymine) uses is also not the issue; that ID has select access to the arm_custom_db.
The exeption which I can see is being thrown (within the builds console output on Hudson) is
Sequel::DatabaseError: Java::ComTeradataJdbcJdbc_4Util::JDBCException. Since this execption is a subclass of DatabaseError, the exception shouldn't be the problem either.
Also: We use unless statements like this every day for hundreds of different tables, and all except this one work correctly. This statement just seems to be a problem.
The complete error message which appears in the builds console output of Hudson is as follows:
[2015-01-07T13:56:37.947000 #16702] ERROR -- : Java::ComTeradataJdbcJdbc_4Util::JDBCException: [Teradata Database] [TeraJDBC 13.10.00.17] [Error 3807] [SQLState 42S02] Object 'ALL_WKSCRATCHPAD_DB.MAX_CALL_ATTEMPT_PARAMETERS' does not exist.: SELECT TOP 1 MAX(CAST(MAX_CALL_ATTEMPT_CNT AS BIGINT)) FROM ALL_WKSCRATCHPAD_DB.MAX_CALL_ATTEMPT_PARAMETERS
Sequel::DatabaseError: Java::ComTeradataJdbcJdbc_4Util::JDBCException: [Teradata Database] [TeraJDBC 13.10.00.17] [Error 3807] [SQLState 42S02] Object 'ALL_WKSCRATCHPAD_DB.MAX_CALL_ATTEMPT_PARAMETERS' does not exist.
I don't understand why this specific bit of code is giving me issues...there does not appear to be anything special about this table or database, and all SQL code executes perfectly fine in Teradata when I am signed in with the same exact user ID that is being used to execute the code from Hudson.
Here is my code:
$this->db->select('course_name AS Course Name,course_desc AS Course Description,display_public AS Display Status',FALSE);
$this->db->from('courses');
$this->db->where('tennant_id',$tennant_id);
$this->db->order_by('course_name','ASC');
$query = $this->db->get();
and I got an error:
A Database Error Occurred
Error Number: 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Name, course_desc AS Course Description, display_public AS Display Status FROM (' at line 1
and I got an error:
A Database Error Occurred
Error Number: 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Name, course_desc AS Course Description, display_public AS Display Status FROM (' at line 1
SELECT course_name AS Course Name,
course_desc AS Course Description,
display_public AS Display Status
FROM (`courses`) WHERE `tennant_id` = 'elicuarto#apploma.com'
ORDER BY `course_name` ASC
Filename: C:\wamp\www\coursebooking\system\database\DB_driver.php
Line Number: 330
Try
$this->db->select('course_name AS `Course Name`, course_desc AS `Course Description`, display_public AS `Display Status`', FALSE);
It's the space in your alias that is messing with you.
UPDATE
I'm not sure why you would want to, but I see nothing preventing you from writing
$this->db->select("course_name AS `{$variable}`", FALSE);
(showing just one field for simplicity)
UPDATE 2
Should be standard string conversion so I don't know why it doesn't work for you.. there's always split strings...
$this->db->select('course_name AS `' . $variable . '`', FALSE);