Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | added db_generic_query_view() to simplify /tabview and /my implementations |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
74ba41a5104a814128597cf8facbbb25 |
| User & Date: | stephan 2008-02-03 21:50:20.000 |
Context
|
2008-02-03
| ||
| 21:56 | refactored some /tagview code into more generic bits. Added string_xform.c. check-in: 9c01af2d22 user: stephan tags: trunk | |
| 21:50 | added db_generic_query_view() to simplify /tabview and /my implementations check-in: 74ba41a510 user: stephan tags: trunk | |
| 18:00 | Fixed a memory leak in tagview_page_list_tags(). Minor other refactorings. check-in: 2cb3290e67 user: stephan tags: trunk | |
Changes
Changes to src/db.c.
| ︙ | ︙ | |||
1109 1110 1111 1112 1113 1114 1115 |
}else{
print_setting(azName[i]);
}
}else{
usage("?PROPERTY? ?VALUE?");
}
}
| > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 |
}else{
print_setting(azName[i]);
}
}else{
usage("?PROPERTY? ?VALUE?");
}
}
/**
* db_generic_query_view():
*
* A very primitive helper to run an SQL query and table-ize the
* results.
*
* The sql parameter should be a single, complete SQL statement.
*
* The coln parameter is optional (it may be 0). If it is 0 then the
* column names used in the output will be taken directly from the
* SQL. If it is not null then it must have as many entries as the SQL
* result has columns. Each entry is a column name for the SQL result
* column of the same index. Any given entry may be 0, in which case
* the column name from the SQL is used.
*
* The xform argument is an array of transformation functions (type
* string_unary_xform_f). The array, or any single entry, may be 0, but
* if the array is non-0 then it must have at least as many entries as
* colnames does. Each index corresponds directly to an entry in
* colnames and the SQL results. Any given entry may be 0. If it has
* fewer, undefined behaviour results. If a column has an entry in
* xform, then the xform function will be called to transform the
* column data before rendering it. This function takes care of freeing
* the strings created by the xform functions.
*
* Example:
*
* char const * const colnames[] = {
* "Tag ID", "Tag Name", "Something Else", "UUID"
* };
* string_unary_xform_f xf[] = {
* strxform_link_to_tagid,
* strxform_link_to_tagname,
* 0,
* strxform_link_to_uuid
* };
* db_generic_query_view( "select a,b,c,d from foo", colnames, xf );
*
*/
void db_generic_query_view(
char const * sql,
char const * const * coln,
string_unary_xform_f * xform )
{
Stmt st;
int i = 0;
int rc = db_prepare( &st, sql );
/**
Achtung: makeheaders apparently can't pull the function
name from this:
if( SQLITE_OK != db_prepare( &st, sql ) )
*/
if( SQLITE_OK != rc )
{
@ db_generic_query_view(): Error processing SQL: [%s(sql)]
return;
}
int colc = db_column_count(&st);
@ <table cellpadding='4px' border='1'><tbody>
@ <tr>
for( i = 0; i < colc; ++i ) {
if( coln )
{
@ <th>%s(coln[i] ? coln[i] : db_column_name(&st,i))</th>
}
else
{
@ <td>%s(db_column_name(&st,i))</td>
}
}
@ </tr>
while( SQLITE_ROW == db_step(&st) ){
@ <tr>
for( i = 0; i < colc; ++i ) {
char * xf = 0;
char const * xcf = 0;
xcf = (xform && xform[i])
? (xf=(xform[i])(db_column_text(&st,i)))
: db_column_text(&st,i);
@ <td>%s(xcf)</td>
if( xf ) free( xf );
}
@ </tr>
}
db_finalize( &st );
@ </tbody></table>
}
|