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pp_structtomysql.pro
Author information
- Author
Paulo Penteado (http://www.ppenteado.net), Apr/2015
Routines
Routines from pp_structtomysql.pro
result = pp_structtomysql__typename(var [, minlen=minlen] [, maxlen=maxlen])Helper function, to return the mysql variable type corresponding to an IDL variable type.
pp_structtomysql, struct, tablename, dbname=string [, username=string] [, verbose=verbose] [, primary_key=string] [, nodeletecsv=nodeletecsv] [, nodroptable=nodroptable] [, generate_code_only=generate_code_only]Creates a table in a mysql server, from an IDL array of structures.
Routine details
top source pp_structtomysql__typename
result = pp_structtomysql__typename(var [, minlen=minlen] [, maxlen=maxlen])
Helper function, to return the mysql variable type corresponding to an IDL variable type.
Parameters
- var in required
The IDL variable whose mysql type is desired.
Keywords
- minlen in optional
If the type is a string, by default the mysql type will have the length of the longest string in
var. If minlen is provided, the mysql length will be the greatest among minlen and the longest string invar.- maxlen in optional
If the type is a string, by default the mysql type will have the length of the longest string in
var. If maxlen is provided, the mysql length will be the smallest among maxlen and the longest string invar.
Author information
- Author:
Paulo Penteado (http://www.ppenteado.net), Apr 2015
Statistics
| Lines: | 26 lines |
| Cyclomatic complexity: | 14 |
| Modified cyclomatic complexity: | 4 |
top source pp_structtomysql
pp_structtomysql, struct, tablename, dbname=string [, username=string] [, verbose=verbose] [, primary_key=string] [, nodeletecsv=nodeletecsv] [, nodroptable=nodroptable] [, generate_code_only=generate_code_only]
Creates a table in a mysql server, from an IDL array of structures.
Each element of the array becomes a row in the table. The column names are
the structure field names, with a '_' appended (to avoid mysql reserved words).
The mysql server information (address, login, password, etc) is taken from ~/.my.conf.
This is handled by Marc Buie's openmysql
(http://www.boulder.swri.edu/~buie/idl/pro/openmysql.html).
Parameters
- struct in required
The structure containing the data to be inserted in the mysql table.
- tablename in required type=string
The name of the table to be created.
Keywords
- dbname in required type=string
The name of the database where the table is to be created.
- username in optional type=string
The username to use in mysql. Defaults to the current user.
- verbose in optional
If set, the mysql commands get printed to the terminal.
- primary_key in optional type=string
If set, determines which key will be the table's primary key.
- nodeletecsv in optional
During injection, the data is put into a csv file in the current directory (pp_structtomysql_tmpfile.csv). If this keyword is set, the file is not deleted at the end.
- nodroptable in optional
By default, if the table to be created already exists, it is dropped, then created with the data provided. If this keyword is set, dropping the table is skipped, and this procedure will just attempt to insert the data into the table.
- generate_code_only out optional
If provided, this variable will contain a string array with the commands that would have been issued to mysql. No mysql commands are executed.
Examples
Create a table in a mysql server (server parameters set in ~/.my.conf), then retrieve the data from it. In this case, assuming that there is a database named pp_structtomysql, and that the user has write access to it:
outstruct=replicate({a:1,b:2d0,c:'def'},4)
outstruct.a=indgen(4)
outstruct.b=dindgen(4)^2
outstruct.c+='_'+strtrim(indgen(4),2)
print,outstruct
;{ 0 0.0000000 def_0}
;{ 1 1.0000000 def_1}
;{ 2 4.0000000 def_2}
;{ 3 9.0000000 def_3}
pp_structtomysql,outstruct,'pp_structtomysql_example',primary_key='c_',dbname='pp_structtomysql'
openmysql,lun,'pp_structtomysql'
instruct=pp_mysqlquery(lun,'select * from pp_structtomysql_example;')
print,instruct
;{ 0 0 def_0}
;{ 1 1 def_1}
;{ 2 4 def_2}
;{ 3 9 def_3}
free_lun,lun
Author information
- Author:
Paulo Penteado (http://www.ppenteado.net), Apr 2015
Other attributes
- Requires:
openmysql,mysqlquery, from Marc Buie's library (http://www.boulder.swri.edu/~buie/idl/).
Statistics
| Lines: | 41 lines |
| Cyclomatic complexity: | 13 |
| Modified cyclomatic complexity: | 13 |
File attributes
| Modification date: | Wed Jun 29 22:15:28 2016 |
| Lines: | 67 |
| Docformat: | rst rst |