In this case, instead of using a single regex parameter I would instead
suggest following the EntityInterfaces and MemberExposedAttributes
option by using comma-separated names.
In a truly ideal world we'd replace Parameters.cs/etc. with Mono.Options
or NDesk.Options [0], which would allow you to do "DbMetal -entity A
-entity B -entity C ...", using '-entity' for each type you wanted to
provide.
Thanks,
- Jon
On Mon, 2009-10-26 at 15:36 +0100, Emanuele Aina wrote:
> In a ongoing effort to subvert DbMetal to our desires, I've also added a
> new option allow the selection of the entity types to be generated by
> means of a regular expression.
>
> As usual, diff follows and gzipped patch attached.
>
> We needed this and the /noDatacontext option to generate each entity in
> a different file when calling DbMetal from a script.
>
> ---
> .../CodeTextGenerator/CodeGenerator.Class.cs | 10 +++++++++-
> src/DbMetal/Parameters.cs | 9 +++++++++
> 2 files changed, 18 insertions(+), 1 deletions(-)
>
> diff --git
> a/src/DbMetal/Generator/Implementation/CodeTextGenerator/CodeGenerator.Class.cs
>
> b/src/DbMetal/Generator/Implementation/CodeTextGenerator/CodeGenerator.Class.cs
> index dcea168..82792aa 100644
> ---
> a/src/DbMetal/Generator/Implementation/CodeTextGenerator/CodeGenerator.Class.cs
> +++
> b/src/DbMetal/Generator/Implementation/CodeTextGenerator/CodeGenerator.Class.cs
> @@ -28,6 +28,7 @@ using System.Collections.Generic;
> using System.Data.Linq.Mapping;
> using System.Diagnostics;
> using System.Linq;
> +using System.Text.RegularExpressions;
> using DbLinq.Schema.Dbml;
> using DbLinq.Schema.Dbml.Adapter;
> using DbLinq.Util;
> @@ -48,7 +49,14 @@ namespace
> DbMetal.Generator.Implementation.CodeTextGenerator
> {
> protected virtual void WriteClasses(CodeWriter writer, Database
> schema, GenerationContext context)
> {
> - foreach (var table in schema.Tables)
> + // filter entities to be generated, accept everything by default
> + Regex filter = new Regex(".*", RegexOptions.Compiled);
> + if (context.Parameters.EntityFilter != null) {
> + // should match the whole type name
> + filter = new Regex("^"+context.Parameters.EntityFilter+"$",
> RegexOptions.Compiled);
> + }
> +
> + foreach (var table in schema.Tables.Where(t =>
> filter.IsMatch(t.Type.Name)))
> WriteClass(writer, table, schema, context);
> }
>
> diff --git a/src/DbMetal/Parameters.cs b/src/DbMetal/Parameters.cs
> index e38badc..170d795 100644
> --- a/src/DbMetal/Parameters.cs
> +++ b/src/DbMetal/Parameters.cs
> @@ -222,6 +222,15 @@ namespace DbMetal
> public bool NoDataContext { get; set; }
>
> /// <summary>
> + /// specifies which entities should be generated with a regex which
> + /// should match the whole type name
> + /// DbLinq specific
> + /// </summary>
> + [Option("Generate only entities that match the regex",
> + ValueName = "regex", Group = 4)]
> + public string EntityFilter { get; set; }
> +
> + /// <summary>
> /// specifies a provider (which here is a pair or ISchemaLoader and
> IDbConnection implementors)
> /// SQLMetal compatible
> /// </summary>
>
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