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Merge pull request #344 from vabenil/one_to_many_handle_empty_str 

One to many handle empty str
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Adam D. Ruppe 2022-11-09 11:11:56 -05:00 committed by GitHub
parent 760880e87f f0d649300c
commit 06a6a62b27
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1 changed files with 16 additions and 15 deletions
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database_generation.d
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@ -920,15 +920,15 @@ string toFieldName(T)(string s, bool isPlural = false)
} }
--- ---
if t2 or t1 are set as null they will be inferred from either if t2 or t1 are set as "" the get function will not be generated
the `DBName` attribute or from the name of the Table (the name will not be inferred), if set as null they will be inferred from
either the `DBName` attribute or from the name of the Table.
History: History:
Added November 5, 2022 (dub v10.10) Added November 5, 2022 (dub v10.10)
+/ +/
template one_to_many(alias fk_field, string t2 = null, string t1 = null) template one_to_many(alias fk_field, string t2 = null, string t1 = null)
{ {
private {
alias T1 = __traits(parent, fk_field); alias T1 = __traits(parent, fk_field);
static assert( static assert(
@ -941,9 +941,8 @@ template one_to_many(alias fk_field, string t2 = null, string t1 = null)
immutable string t2_name = toFieldName!T2(t2); immutable string t2_name = toFieldName!T2(t2);
immutable string t1_name = toFieldName!T1(t1, true); immutable string t1_name = toFieldName!T1(t1, true);
}
static immutable string one_to_many = static immutable string one = (t2 is "") ? "" :
T2.stringof~` get_`~t2_name~`(`~T1.stringof~` row, Database db) T2.stringof~` get_`~t2_name~`(`~T1.stringof~` row, Database db)
{ {
import std.exception; import std.exception;
@ -957,7 +956,8 @@ template one_to_many(alias fk_field, string t2 = null, string t1 = null)
).to_table_rows!`~T2.stringof~`; ).to_table_rows!`~T2.stringof~`;
return res.front(); return res.front();
} }`;
static immutable string many = (t1 is "") ? "" : `
TabResultSet!`~T1.stringof~` get_`~t1_name~`(`~T2.stringof~` row, Database db) TabResultSet!`~T1.stringof~` get_`~t1_name~`(`~T2.stringof~` row, Database db)
{ {
import std.exception; import std.exception;
@ -972,4 +972,5 @@ template one_to_many(alias fk_field, string t2 = null, string t1 = null)
return res; return res;
}`; }`;
static immutable string one_to_many = one ~ many;
} }