{{ message }}
-
-
Notifications
You must be signed in to change notification settings - Fork 11
Expand file tree
/
Copy pathRoutineSource.cs
More file actions
215 lines (197 loc) · 9.02 KB
/
Copy pathRoutineSource.cs
File metadata and controls
215 lines (197 loc) · 9.02 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
using System.Text;
using Npgsql;
using NpgsqlTypes;
using NpgsqlRest.Extensions;
namespace NpgsqlRest;
public class RoutineSource(
string? schemaSimilarTo = null,
string? schemaNotSimilarTo = null,
string[]? includeSchemas = null,
string[]? excludeSchemas = null,
string? nameSimilarTo = null,
string? nameNotSimilarTo = null,
string[]? includeNames = null,
string[]? excludeNames = null,
string? query = null,
CommentsMode? commentsMode = null) : IRoutineSource
{
private readonly IRoutineSourceParameterFormatter _formatter = new RoutineSourceParameterFormatter();
public string? SchemaSimilarTo { get; set; } = schemaSimilarTo;
public string? SchemaNotSimilarTo { get; set; } = schemaNotSimilarTo;
public string[]? IncludeSchemas { get; set; } = includeSchemas;
public string[]? ExcludeSchemas { get; set; } = excludeSchemas;
public string? NameSimilarTo { get; set; } = nameSimilarTo;
public string? NameNotSimilarTo { get; set; } = nameNotSimilarTo;
public string[]? IncludeNames { get; set; } = includeNames;
public string[]? ExcludeNames { get; set; } = excludeNames;
public string? Query { get; set; } = query ?? RoutineSourceQuery.Query;
public CommentsMode? CommentsMode { get; set; } = commentsMode;
public IEnumerable<(Routine, IRoutineSourceParameterFormatter)> Read(NpgsqlRestOptions options)
{
using var connection = new NpgsqlConnection(options.ConnectionString);
using var command = connection.CreateCommand();
Query ??= RoutineSourceQuery.Query;
if (Query.Contains(' ') is false)
{
command.CommandText = string.Concat("select * from ", Query, "($1,$2,$3,$4,$5,$6,$7,$8)");
}
else
{
command.CommandText = Query;
}
AddParameter(SchemaSimilarTo ?? options.SchemaSimilarTo); // $1
AddParameter(SchemaNotSimilarTo ?? options.SchemaNotSimilarTo); // $2
AddParameter(IncludeSchemas ?? options.IncludeSchemas, true); // $3
AddParameter(ExcludeSchemas ?? options.ExcludeSchemas, true); // $4
AddParameter(NameSimilarTo ?? options.NameSimilarTo); // $5
AddParameter(NameNotSimilarTo ?? options.NameNotSimilarTo); // $6
AddParameter(IncludeNames ?? options.IncludeNames, true); // $7
AddParameter(ExcludeNames ?? options.ExcludeNames, true); // $8
connection.Open();
using NpgsqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
var type = reader.Get<string>(0);//"type");
var paramTypes = reader.Get<string[]>(14);// "param_types");
var returnType = reader.Get<string>(7);// "return_type");
var name = reader.Get<string>(2);// "name");
var volatility = reader.Get<char>(5);//"volatility_option");
var hasGet =
name.Contains("_get_", StringComparison.OrdinalIgnoreCase) ||
name.StartsWith("get_", StringComparison.OrdinalIgnoreCase) ||
name.EndsWith("_get", StringComparison.OrdinalIgnoreCase);
var crudType = hasGet ? CrudType.Select : (volatility == 'v' ? CrudType.Update : CrudType.Select);
var paramNames = reader.Get<string[]>(13);//"param_names");
var isVoid = string.Equals(returnType, "void", StringComparison.Ordinal);
var schema = reader.Get<string>(1);//"schema");
var returnsSet = reader.Get<bool>(6);//"returns_set");
var returnRecordTypes = reader.Get<string[]>(10);//"return_record_types");
TypeDescriptor[] returnTypeDescriptor;
if (isVoid)
{
returnTypeDescriptor = [];
}
else
{
returnTypeDescriptor = returnRecordTypes.Select(x => new TypeDescriptor(x)).ToArray();
}
var returnRecordNames = reader.Get<string[]>(9);//"return_record_names");
var paramDefaults = reader.Get<string?[]>(15);//"param_defaults");
bool isUnnamedRecord = reader.Get<bool>(11);// "is_unnamed_record");
var routineType = type.GetEnum<RoutineType>();
var callIdent = routineType == RoutineType.Procedure ? "call " : "select ";
var paramCount = reader.Get<int>(12);// "param_count");
var returnRecordCount = reader.Get<int>(8);// "return_record_count");
var variadic = reader.Get<bool>(16);// "has_variadic");
var expression = string.Concat(
(isVoid || returnRecordCount == 1)
? callIdent
: string.Concat(callIdent, string.Join(",", returnRecordNames), " from "),
schema,
".",
name,
"(",
variadic && paramCount > 0 ? "variadic " : "");
var simpleDefinition = new StringBuilder();
simpleDefinition.AppendLine(string.Concat(
routineType.ToString().ToLower(), " ",
schema, ".",
name, "(",
paramCount == 0 ? ")" : ""));
if (paramCount > 0)
{
for (var i = 0; i < paramCount; i++)
{
var paramName = paramNames[i];
var defaultValue = paramDefaults[i];
var paramType = paramTypes[i];
var fullParamType = defaultValue == null ? paramType : $"{paramType} DEFAULT {defaultValue}";
simpleDefinition
.AppendLine(string.Concat(" ", paramName, " ", fullParamType, i == paramCount - 1 ? "" : ","));
}
simpleDefinition.AppendLine(")");
}
if (!returnsSet)
{
simpleDefinition.AppendLine(string.Concat("returns ", returnType));
}
else
{
if (isUnnamedRecord)
{
simpleDefinition.AppendLine(string.Concat($"returns setof {returnType}"));
}
else
{
simpleDefinition.AppendLine("returns table(");
for (var i = 0; i < returnRecordCount; i++)
{
var returnParamName = returnRecordNames[i];
var returnParamType = returnRecordTypes[i];
simpleDefinition
.AppendLine(string.Concat(" ", returnParamName, " ", returnParamType, i == returnRecordCount - 1 ? "" : ","));
}
simpleDefinition.AppendLine(")");
}
}
yield return (
new Routine(
type: routineType,
schema: schema,
name: name,
comment: reader.Get<string>(3),//"comment"),
isStrict: reader.Get<bool>(4),//"is_strict"),
crudType: crudType,
returnsRecordType: string.Equals(returnType, "record", StringComparison.OrdinalIgnoreCase),
returnsSet: returnsSet,
columnCount: returnRecordCount,
columnNames: returnRecordNames,
returnsUnnamedSet: isUnnamedRecord,
columnsTypeDescriptor: returnTypeDescriptor,
isVoid: isVoid,
paramCount: paramCount,
paramNames: paramNames,
paramTypeDescriptor: paramTypes
.Select((x, i) => new TypeDescriptor(x, hasDefault: paramDefaults[i] is not null))
.ToArray(),
expression: expression,
fullDefinition: reader.Get<string>(17),//"definition"),
simpleDefinition: simpleDefinition.ToString(),
tags: [routineType.ToString().ToLowerInvariant(), volatility switch
{
'v' => "volatile",
's' => "stable",
'i' => "immutable",
_ => "other"
}]),
_formatter);
}
yield break;
void AddParameter(object? value, bool isArray = false)
{
if (value is null)
{
value = DBNull.Value;
}
else if (isArray && value is string[] array)
{
if (array.Length == 0)
{
value = DBNull.Value;
}
}
else if (!isArray && value is string str)
{
if (string.IsNullOrWhiteSpace(str))
{
value = DBNull.Value;
}
}
command.Parameters.Add(new NpgsqlParameter
{
NpgsqlDbType = isArray ? NpgsqlDbType.Text | NpgsqlDbType.Array : NpgsqlDbType.Text,
Value = value
});
}
}
}
You can’t perform that action at this time.