Re: [sqlalchemy] Reliable way to read comments from database schema
On 06/04/2013 11:22 PM, Warwick Prince wrote: On 06/04/2013 10:46 PM, Michael Bayer wrote: There's a long standing ticket to add support for comments, at least at the DDL level. I don't think anyone has looked into what level of support we get from the various backends as far as reflection. So its something the library has room for, but it's an open item for now. The four-year-old ticket is http://www.sqlalchemy.org/trac/ticket/1546. On Jun 4, 2013, at 8:33 PM, Warwick Prince warwi...@mushroomsys.com wrote: Hi Michael I'm toying with the idea of embedding some metadata into the comments on columns and/or the table comment. Is there a way to reliably read the comment from the column definition via reflection across all dialects that would support a comment at a column level? Also, can I read the comment normally attached to the table definition? Thanks Warwick If this metadata will be used just in sqlalchemy (or python libraries up in the stack), you could use the info parameter when creating columns. OK - sounds promising. What actually is the 'info' that it reads/writes? i.e. where is it getting it from/putting it in the DB? (Or does it only reside in the Python code?) It is a dictionary and you can store whatever you want in there (please see http://docs.sqlalchemy.org/en/rel_0_8/core/schema.html#sqlalchemy.schema.SchemaItem.info for more info about it). This information is only available on Python code. Also, I'd like to +1 the task to reflect the comments with support for as many dialects as possible :-) We have developed a large platform using SQLA as the ORM, and as part of the maintenance area we have a generic database manager that is intended to allow maintenance, viewing, manual row insertion/deletion etc (Like MySQL Workbench et al) that is 100% database agnostic. Comments are missing at the moment which is a shame. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sqlalchemy] Reliable way to read comments from database schema
There's a long standing ticket to add support for comments, at least at the DDL level. I don't think anyone has looked into what level of support we get from the various backends as far as reflection. So its something the library has room for, but it's an open item for now. The four-year-old ticket is http://www.sqlalchemy.org/trac/ticket/1546. On Jun 4, 2013, at 8:33 PM, Warwick Prince warwi...@mushroomsys.com wrote: Hi Michael I'm toying with the idea of embedding some metadata into the comments on columns and/or the table comment. Is there a way to reliably read the comment from the column definition via reflection across all dialects that would support a comment at a column level? Also, can I read the comment normally attached to the table definition? Thanks Warwick -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sqlalchemy] Reliable way to read comments from database schema
On 06/04/2013 10:46 PM, Michael Bayer wrote: There's a long standing ticket to add support for comments, at least at the DDL level. I don't think anyone has looked into what level of support we get from the various backends as far as reflection. So its something the library has room for, but it's an open item for now. The four-year-old ticket is http://www.sqlalchemy.org/trac/ticket/1546. On Jun 4, 2013, at 8:33 PM, Warwick Prince warwi...@mushroomsys.com wrote: Hi Michael I'm toying with the idea of embedding some metadata into the comments on columns and/or the table comment. Is there a way to reliably read the comment from the column definition via reflection across all dialects that would support a comment at a column level? Also, can I read the comment normally attached to the table definition? Thanks Warwick If this metadata will be used just in sqlalchemy (or python libraries up in the stack), you could use the info parameter when creating columns. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sqlalchemy] Reliable way to read comments from database schema
On 06/04/2013 10:46 PM, Michael Bayer wrote: There's a long standing ticket to add support for comments, at least at the DDL level. I don't think anyone has looked into what level of support we get from the various backends as far as reflection. So its something the library has room for, but it's an open item for now. The four-year-old ticket is http://www.sqlalchemy.org/trac/ticket/1546. On Jun 4, 2013, at 8:33 PM, Warwick Prince warwi...@mushroomsys.com wrote: Hi Michael I'm toying with the idea of embedding some metadata into the comments on columns and/or the table comment. Is there a way to reliably read the comment from the column definition via reflection across all dialects that would support a comment at a column level? Also, can I read the comment normally attached to the table definition? Thanks Warwick If this metadata will be used just in sqlalchemy (or python libraries up in the stack), you could use the info parameter when creating columns. OK - sounds promising. What actually is the 'info' that it reads/writes? i.e. where is it getting it from/putting it in the DB? (Or does it only reside in the Python code?) Also, I'd like to +1 the task to reflect the comments with support for as many dialects as possible :-) We have developed a large platform using SQLA as the ORM, and as part of the maintenance area we have a generic database manager that is intended to allow maintenance, viewing, manual row insertion/deletion etc (Like MySQL Workbench et al) that is 100% database agnostic. Comments are missing at the moment which is a shame. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
