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Series data, split db.c

This commit is contained in:
Meutel 2017-01-08 16:30:06 +01:00
parent 3453ab92ef
commit 231b115a95
7 changed files with 1011 additions and 597 deletions
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2
Makefile
View File

@ -58,7 +58,7 @@ APIDOCS = /var/www/htdocs/api-docs
sinclude GNUmakefile.local
DATABASE = metadata.db
OBJS = db.o json.o main.o
OBJS = db.o db_author.o db_book.o db_series.o json.o main.o
HTMLS = index.html book.html author.html
JSMINS = index.min.js book.min.js author.min.js

594
db.c
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@ -28,105 +28,7 @@
#include "extern.h"
enum stmt {
STMT_BOOK,
STMT_BOOK_TAGS,
STMT_BOOK_AUTHORS,
STMT_BOOK_DATA,
STMT_BOOKS,
STMT_BOOKS_COUNT,
STMT_BOOKS_TAGS,
STMT_BOOKS_AUTHORS,
STMT_AUTHORS,
STMT_AUTHOR_BOOKS,
STMT_AUTHORS_AUTHORS,
STMT_AUTHOR,
STMT__MAX
};
static const char *const stmts[STMT__MAX] = {
/* STMT_BOOK */
"SELECT books.id AS id,title, series_index, series.name AS series_name, series.id AS series_id, \
strftime('%s', timestamp), strftime('%Y', pubdate), isbn,lccn,path,uuid,has_cover, \
languages.lang_code, publishers.name AS pubname FROM books \
LEFT OUTER JOIN books_languages_link ON books_languages_link.book = books.id \
LEFT OUTER JOIN languages ON languages.id = books_languages_link.lang_code \
LEFT OUTER JOIN data ON data.book = books.id \
LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series \
LEFT OUTER JOIN books_publishers_link ON books.id = books_publishers_link.book \
LEFT OUTER JOIN publishers ON publishers.id = books_publishers_link.publisher \
WHERE books.id = ?",
/* STMT_BOOK_TAGS */
"SELECT name FROM tags, books_tags_link WHERE tags.id = books_tags_link.tag AND books_tags_link.book = ?",
/* STMT_BOOK_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book = ?",
/* STMT_BOOK_DATA */
"SELECT data.name, data.format, data.uncompressed_size \
FROM data WHERE data.book = ?",
/* STMT_BOOKS */
"SELECT books.id AS id,title,series_index,name as series_name,series.id AS series_id \
FROM books LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series ORDER BY id LIMIT ? OFFSET ?",
/* STMT_BOOKS_COUNT */
"SELECT count(id) FROM books",
/* STMT_BOOKS_TAGS */
"SELECT name, books_tags_link.book as book FROM tags, books_tags_link \
WHERE tags.id = books_tags_link.tag AND books_tags_link.book \
IN ( SELECT id FROM books ORDER BY id LIMIT ? OFFSET ?)",
/* STMT_BOOKS_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book IN ( SELECT id FROM books ORDER BY id LIMIT ? OFFSET ?)",
/* STMT_AUTHORS */
"SELECT authors.id, authors.name, count(book) as count FROM authors, books_authors_link \
WHERE authors.id = books_authors_link.author GROUP BY author \
ORDER BY authors.id LIMIT ? OFFSET ?",
/* STMT_AUTHOR_BOOKS */
"SELECT books.id AS id,title,series_index,name as series_name,series.id AS series_id \
FROM books LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series \
LEFT OUTER JOIN books_authors_link ON books.id = books_authors_link.book \
WHERE books_authors_link.author = ? ORDER BY id",
/* STMT_AUTHORS_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book IN ( SELECT books.id FROM books LEFT OUTER JOIN books_authors_link \
ON books.id = books_authors_link.book WHERE books_authors_link.author = ? ORDER BY books.id)",
/* STMT_AUTHOR */
"SELECT name FROM authors WHERE id = ?",
};
/*
* Linked list authors of book.
*/
struct bookauth {
Author *a;
BookAdv *b;
struct bookauth *p;
};
/*
* Linked list tags of book.
*/
struct booktag {
char *tag;
BookAdv *b;
struct booktag *p;
};
/*
* Linked list book data.
*/
struct bookdata {
BookData *d;
BookFull *b;
struct bookdata *p;
};
static char *
char *
strornull(struct ksqlstmt *stmt, int col)
{
if (ksql_stmt_isnull(stmt, col))
@ -134,500 +36,6 @@ strornull(struct ksqlstmt *stmt, int col)
return(kstrdup(ksql_stmt_str(stmt, col)));
}
static void
db_series_unfill(Series *p)
{
if (NULL == p)
return;
free(p->name);
}
void
db_series_free(Series *p)
{
db_series_unfill(p);
free(p);
}
static void
db_book_unfill(Book *p)
{
if (NULL == p)
return;
free(p->title);
db_series_unfill(&p->s);
}
static void
db_author_unfill(Author *p) {
if (NULL == p)
return;
free(p->name);
}
void
db_author_adv_free(AuthorAdv *p)
{
db_author_unfill(&p->a);
free(p);
}
void
db_author_free(Author *p) {
db_author_unfill(p);
free(p);
}
static void
db_book_data_unfill(BookData *p) {
if (NULL == p)
return;
free(p->name);
free(p->format);
}
void
db_book_free(Book *p)
{
db_book_unfill(p);
free(p);
}
void
db_book_adv_free(BookAdv *p)
{
if (NULL == p)
return;
size_t i;
db_book_unfill(&p->b);
for (i = 0; i < p->asize; i++) {
db_author_unfill(p->a[i]);
}
for (i = 0; i < p->tsize; i++) {
free(p->tags[i]);
}
free(p);
}
void
db_book_full_unfill(BookFull *p)
{
if (NULL == p)
return;
for (size_t i = 0; i < p->dsize; i++) {
db_book_data_unfill(p->data[i]);
}
free(p->isbn);
free(p->lccn);
free(p->path);
free(p->uuid);
free(p->lang);
free(p->publisher);
}
void
db_book_full_free(BookFull *p)
{
if (NULL == p)
return;
db_book_unfill(&p->ba.b);
for (size_t i = 0; i < p->ba.asize; i++) {
db_author_unfill(p->ba.a[i]);
}
db_book_full_unfill(p);
free(p);
}
static void
db_book_fill(Book *book, struct ksqlstmt *stmt)
{
book->id = ksql_stmt_int(stmt, 0);
book->title = kstrdup(ksql_stmt_str(stmt, 1));
if ( ksql_stmt_isnull(stmt, 4) ) {
book->s.id = -1;
} else {
book->s_idx = ksql_stmt_double(stmt, 2);
book->s.name = kstrdup(ksql_stmt_str(stmt, 3));
book->s.id = ksql_stmt_int(stmt, 4);
}
}
int
db_books_count(struct kreq *r)
{
int count;
struct ksqlstmt *stmt;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_COUNT],
STMT_BOOKS_COUNT);
if (KSQL_ROW != ksql_stmt_step(stmt)) {
ksql_stmt_free(stmt);
return(0);
}
count = ksql_stmt_int(stmt, 0);
ksql_stmt_free(stmt);
return(count);
}
static void
db_assign_book_tags(struct booktag *list)
{
struct booktag *item = NULL;
struct booktag *p = NULL;
p = list;
while (NULL != p) {
if (NULL != p->b && NULL == p->b->tags && p->b->tsize > 0) {
p->b->tags = kcalloc(p->b->tsize, sizeof(char*));
p->b->tsize = 0; // use as counter for insert
}
p->b->tags[p->b->tsize] = p->tag;
p->b->tsize++;
item = p;
p = p->p;
free(item);
}
}
static void
db_assign_book_authors(struct bookauth *list)
{
struct bookauth *item = NULL;
struct bookauth *p = NULL;
p = list;
while (NULL != p) {
if (NULL != p->b && NULL == p->b->a && p->b->asize > 0) {
p->b->a = kcalloc(p->b->asize, sizeof(Author));
p->b->asize = 0; // use as counter for insert
}
p->b->a[p->b->asize] = p->a;// add author
p->b->asize++;
item = p;
p = p->p;
free(item);
}
}
static struct booktag *
db_load_books_tags(struct kreq *r, BookAdv **books, int count, int limit, int offset)
{
struct ksqlstmt *stmt;
struct booktag *p = NULL;
struct booktag *item = NULL;
int i;
int64_t bid;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_TAGS],
STMT_BOOKS_TAGS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct booktag));
item->tag = kstrdup(ksql_stmt_str(stmt, 0));
bid = ksql_stmt_int(stmt, 1);
for (i = 0; i < count && NULL == item->b; i++) {
if (books[i]->b.id == bid) {
item->b = books[i];
item->b->tsize++;
}
}
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
return p;
}
static struct bookauth *
db_load_books_authors(BookAdv **books, int count, struct ksqlstmt *stmt)
{
struct bookauth *p = NULL;
struct bookauth *item = NULL;
int i;
int64_t bid;
while (KSQL_ROW == ksql_stmt_step(stmt)) {
// add author to list, link related book and increment asize
item = kcalloc(1, sizeof(struct bookauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
bid = ksql_stmt_int(stmt, 2);
for (i = 0; i < count && NULL == item->b; i++) {
if (books[i]->b.id == bid) {
item->b = books[i];
item->b->asize++;
}
}
item->p = p;
p = item;
}
return p;
}
int
db_books_load(struct kreq *r, BookAdv **books, int limit, int offset)
{
if (limit < 0 || offset < 0) {
return 0;
}
struct ksqlstmt *stmt;
struct bookauth *p_a;
struct booktag *p_t;
int count = 0;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS],
STMT_BOOKS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
books[count] = kcalloc(1, sizeof(BookAdv));
db_book_fill(&books[count]->b,stmt);
books[count]->asize = 0;
books[count]->tsize = 0;
count++;
}
ksql_stmt_free(stmt);
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_AUTHORS],
STMT_BOOKS_AUTHORS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
p_a = db_load_books_authors(books, count, stmt);
ksql_stmt_free(stmt);
db_assign_book_authors(p_a);
p_t = db_load_books_tags(r, books, count, limit, offset);
db_assign_book_tags(p_t);
return count;
}
static void
db_book_full_tags(BookAdv *b, struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
struct booktag *p = NULL;
struct booktag *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_TAGS],
STMT_BOOK_TAGS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct booktag));
item->tag = kstrdup(ksql_stmt_str(stmt, 0));
item->b = b;
item->b->tsize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
db_assign_book_tags(p);
}
static void
db_book_full_authors(BookAdv *b, struct kreq *r, int64_t id) {
struct ksqlstmt *stmt;
struct bookauth *p = NULL;
struct bookauth *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_AUTHORS],
STMT_BOOK_AUTHORS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct bookauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
item->b = b;
item->b->asize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
// assign authors to book
db_assign_book_authors(p);
}
static void
db_book_full_data(BookFull *b, struct kreq *r, int64_t id) {
struct ksqlstmt *stmt;
struct bookdata *p = NULL;
struct bookdata *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_DATA],
STMT_BOOK_DATA);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct bookdata));
item->d = kcalloc(1, sizeof(BookData));
item->d->name = kstrdup(ksql_stmt_str(stmt, 0));
item->d->format = kstrdup(ksql_stmt_str(stmt, 1));
item->d->size = ksql_stmt_int(stmt, 2);
item->b = b;
item->b->dsize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
while (NULL != p) {
if (NULL != p->b && NULL == p->b->data && p->b->dsize > 0) {
p->b->data = kcalloc(p->b->dsize, sizeof(BookData));
p->b->dsize = 0; // use as counter for insert
}
p->b->data[p->b->dsize] = p->d;
p->b->dsize++;
item = p;
p = p->p;
free(item);
}
}
BookFull *
db_book_load(struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
BookFull *book;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK],
STMT_BOOK);
ksql_bind_int(stmt, 0, id);
if (KSQL_ROW != ksql_stmt_step(stmt)) {
ksql_stmt_free(stmt);
return(NULL);
}
book = kcalloc(1, sizeof(BookFull));
db_book_fill(&book->ba.b, stmt);
book->timestamp = ksql_stmt_int(stmt, 5);
book->pubdate = ksql_stmt_int(stmt, 6);
book->isbn = strornull(stmt, 7);
book->lccn = strornull(stmt, 8);
book->path = strornull(stmt, 9);
book->uuid = strornull(stmt, 10);
book->has_cover = ksql_stmt_int(stmt, 11);
book->lang = strornull(stmt, 12);
book->publisher = strornull(stmt, 13);
ksql_stmt_free(stmt);
db_book_full_tags(&book->ba, r, id);
db_book_full_authors(&book->ba, r, id);
db_book_full_data(book, r, id);
return book;
}
AuthorFull *
db_author_load(struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
struct bookauth *item = NULL;
struct bookauth *p = NULL;
int books = 0;
BookAdv *b;
AuthorFull *a = kcalloc(1, sizeof(AuthorFull));
a->a.id = id;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHOR_BOOKS],
STMT_AUTHOR_BOOKS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
books++;
b = kcalloc(1, sizeof(BookAdv));
b->asize = 0;
b->tsize = 0;
db_book_fill(&b->b, stmt);
item = kcalloc(1, sizeof(struct bookauth));
item->b = b;
item->a = &a->a;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
a->bsize = books;
if (books>0) {
a->books = kcalloc(books, sizeof(BookAdv));
while (NULL != p && books > 0) {
a->books[--books] = p->b;
item = p;
p = p->p;
free(item);
}
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHORS_AUTHORS],
STMT_AUTHORS_AUTHORS);
ksql_bind_int(stmt, 0, id);
p = db_load_books_authors(a->books, a->bsize, stmt);
ksql_stmt_free(stmt);
db_assign_book_authors(p);
// get name from 1st book
for (size_t i=0; i<a->books[0]->asize; i++) {
if (a->a.id == a->books[0]->a[i]->id)
a->a.name = a->books[0]->a[i]->name;
}
} else {
// no books, get name
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHOR],
STMT_AUTHOR);
ksql_bind_int(stmt, 0, id);
if (KSQL_ROW == ksql_stmt_step(stmt))
a->a.name = kstrdup(ksql_stmt_str(stmt, 0));
else
a = NULL;
ksql_stmt_free(stmt);
}
return a;
}
int
db_authors_load(struct kreq *r, AuthorAdv **authors, int limit, int offset)
{
if (limit < 0 || offset < 0) {
return 0;
}
struct ksqlstmt *stmt;
int count = 0;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHORS],
STMT_AUTHORS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
authors[count] = kcalloc(1, sizeof(AuthorAdv));
authors[count]->a.id = ksql_stmt_int(stmt, 0);
authors[count]->a.name = kstrdup(ksql_stmt_str(stmt, 1));
authors[count]->count = ksql_stmt_int(stmt, 2);
count++;
}
ksql_stmt_free(stmt);
return count;
}
/*
* Open the database and stash the resulting handle in the d
*/

172
db_author.c Normal file
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@ -0,0 +1,172 @@
/* $Id$ */
/*
* Copyright (c) 2016 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <kcgi.h>
#include <kcgijson.h>
#include "ksql.h"
#include "extern.h"
enum stmt {
STMT_AUTHORS,
STMT_AUTHOR_BOOKS,
STMT_AUTHORS_AUTHORS,
STMT_AUTHOR,
STMT__MAX
};
static const char *const stmts[STMT__MAX] = {
/* STMT_AUTHORS */
"SELECT authors.id, authors.name, count(book) as count FROM authors, books_authors_link \
WHERE authors.id = books_authors_link.author GROUP BY author \
ORDER BY authors.id LIMIT ? OFFSET ?",
/* STMT_AUTHOR_BOOKS */
"SELECT books.id AS id,title,series_index,name as series_name,series.id AS series_id \
FROM books LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series \
LEFT OUTER JOIN books_authors_link ON books.id = books_authors_link.book \
WHERE books_authors_link.author = ? ORDER BY id",
/* STMT_AUTHORS_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book IN ( SELECT books.id FROM books LEFT OUTER JOIN books_authors_link \
ON books.id = books_authors_link.book WHERE books_authors_link.author = ? ORDER BY books.id)",
/* STMT_AUTHOR */
"SELECT name FROM authors WHERE id = ?",
};
void
db_author_unfill(Author *p)
{
if (NULL == p)
return;
free(p->name);
}
void
db_author_adv_free(AuthorAdv *p)
{
db_author_unfill(&p->a);
free(p);
}
void
db_author_free(Author *p) {
db_author_unfill(p);
free(p);
}
AuthorFull *
db_author_load(struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
struct bookauth *item = NULL;
struct bookauth *p = NULL;
int books = 0;
BookAdv *b;
AuthorFull *a = kcalloc(1, sizeof(AuthorFull));
a->a.id = id;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHOR_BOOKS],
STMT_AUTHOR_BOOKS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
books++;
b = kcalloc(1, sizeof(BookAdv));
b->asize = 0;
b->tsize = 0;
db_book_fill(&b->b, stmt);
item = kcalloc(1, sizeof(struct bookauth));
item->b = b;
item->a = &a->a;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
a->bsize = books;
if (books>0) {
a->books = kcalloc(books, sizeof(BookAdv));
while (NULL != p && books > 0) {
a->books[--books] = p->b;
item = p;
p = p->p;
free(item);
}
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHORS_AUTHORS],
STMT_AUTHORS_AUTHORS);
ksql_bind_int(stmt, 0, id);
p = db_load_books_authors(a->books, a->bsize, stmt);
ksql_stmt_free(stmt);
db_assign_book_authors(p);
// get name from 1st book
for (size_t i=0; i<a->books[0]->asize; i++) {
if (a->a.id == a->books[0]->a[i]->id)
a->a.name = a->books[0]->a[i]->name;
}
} else {
// no books, get name
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHOR],
STMT_AUTHOR);
ksql_bind_int(stmt, 0, id);
if (KSQL_ROW == ksql_stmt_step(stmt))
a->a.name = kstrdup(ksql_stmt_str(stmt, 0));
else
a = NULL;
ksql_stmt_free(stmt);
}
return a;
}
int
db_authors_load(struct kreq *r, AuthorAdv **authors, int limit, int offset)
{
if (limit < 0 || offset < 0) {
return 0;
}
struct ksqlstmt *stmt;
int count = 0;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_AUTHORS],
STMT_AUTHORS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
authors[count] = kcalloc(1, sizeof(AuthorAdv));
authors[count]->a.id = ksql_stmt_int(stmt, 0);
authors[count]->a.name = kstrdup(ksql_stmt_str(stmt, 1));
authors[count]->count = ksql_stmt_int(stmt, 2);
count++;
}
ksql_stmt_free(stmt);
return count;
}

444
db_book.c Normal file
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@ -0,0 +1,444 @@
/* $Id$ */
/*
* Copyright (c) 2016 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <kcgi.h>
#include <kcgijson.h>
#include "ksql.h"
#include "extern.h"
enum stmt {
STMT_BOOK,
STMT_BOOK_TAGS,
STMT_BOOK_AUTHORS,
STMT_BOOK_DATA,
STMT_BOOKS,
STMT_BOOKS_COUNT,
STMT_BOOKS_TAGS,
STMT_BOOKS_AUTHORS,
STMT__MAX
};
static const char *const stmts[STMT__MAX] = {
/* STMT_BOOK */
"SELECT books.id AS id,title, series_index, series.name AS series_name, series.id AS series_id, \
strftime('%s', timestamp), strftime('%Y', pubdate), isbn,lccn,path,uuid,has_cover, \
languages.lang_code, publishers.name AS pubname FROM books \
LEFT OUTER JOIN books_languages_link ON books_languages_link.book = books.id \
LEFT OUTER JOIN languages ON languages.id = books_languages_link.lang_code \
LEFT OUTER JOIN data ON data.book = books.id \
LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series \
LEFT OUTER JOIN books_publishers_link ON books.id = books_publishers_link.book \
LEFT OUTER JOIN publishers ON publishers.id = books_publishers_link.publisher \
WHERE books.id = ?",
/* STMT_BOOK_TAGS */
"SELECT name FROM tags, books_tags_link WHERE tags.id = books_tags_link.tag AND books_tags_link.book = ?",
/* STMT_BOOK_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book = ?",
/* STMT_BOOK_DATA */
"SELECT data.name, data.format, data.uncompressed_size \
FROM data WHERE data.book = ?",
/* STMT_BOOKS */
"SELECT books.id AS id,title,series_index,name as series_name,series.id AS series_id \
FROM books LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
LEFT OUTER JOIN series ON series.id = books_series_link.series ORDER BY id LIMIT ? OFFSET ?",
/* STMT_BOOKS_COUNT */
"SELECT count(id) FROM books",
/* STMT_BOOKS_TAGS */
"SELECT name, books_tags_link.book as book FROM tags, books_tags_link \
WHERE tags.id = books_tags_link.tag AND books_tags_link.book \
IN ( SELECT id FROM books ORDER BY id LIMIT ? OFFSET ?)",
/* STMT_BOOKS_AUTHORS */
"SELECT authors.id, authors.name, books_authors_link.book as book \
FROM authors, books_authors_link WHERE books_authors_link.author = authors.id \
AND books_authors_link.book IN ( SELECT id FROM books ORDER BY id LIMIT ? OFFSET ?)",
};
static void
db_book_unfill(Book *p)
{
if (NULL == p)
return;
free(p->title);
db_series_unfill(&p->s);
}
static void
db_book_data_unfill(BookData *p) {
if (NULL == p)
return;
free(p->name);
free(p->format);
}
void
db_book_free(Book *p)
{
db_book_unfill(p);
free(p);
}
void
db_book_adv_free(BookAdv *p)
{
if (NULL == p)
return;
size_t i;
db_book_unfill(&p->b);
for (i = 0; i < p->asize; i++) {
db_author_unfill(p->a[i]);
}
for (i = 0; i < p->tsize; i++) {
free(p->tags[i]);
}
free(p);
}
void
db_book_full_unfill(BookFull *p)
{
if (NULL == p)
return;
for (size_t i = 0; i < p->dsize; i++) {
db_book_data_unfill(p->data[i]);
}
free(p->isbn);
free(p->lccn);
free(p->path);
free(p->uuid);
free(p->lang);
free(p->publisher);
}
void
db_book_full_free(BookFull *p)
{
if (NULL == p)
return;
db_book_unfill(&p->ba.b);
for (size_t i = 0; i < p->ba.asize; i++) {
db_author_unfill(p->ba.a[i]);
}
db_book_full_unfill(p);
free(p);
}
void
db_book_fill(Book *book, struct ksqlstmt *stmt)
{
book->id = ksql_stmt_int(stmt, 0);
book->title = kstrdup(ksql_stmt_str(stmt, 1));
if ( ksql_stmt_isnull(stmt, 4) ) {
book->s.id = -1;
} else {
book->s_idx = ksql_stmt_double(stmt, 2);
book->s.name = kstrdup(ksql_stmt_str(stmt, 3));
book->s.id = ksql_stmt_int(stmt, 4);
}
}
int
db_books_count(struct kreq *r)
{
int count;
struct ksqlstmt *stmt;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_COUNT],
STMT_BOOKS_COUNT);
if (KSQL_ROW != ksql_stmt_step(stmt)) {
ksql_stmt_free(stmt);
return(0);
}
count = ksql_stmt_int(stmt, 0);
ksql_stmt_free(stmt);
return(count);
}
static void
db_assign_book_tags(struct booktag *list)
{
struct booktag *item = NULL;
struct booktag *p = NULL;
p = list;
while (NULL != p) {
if (NULL != p->b && NULL == p->b->tags && p->b->tsize > 0) {
p->b->tags = kcalloc(p->b->tsize, sizeof(char*));
p->b->tsize = 0; // use as counter for insert
}
p->b->tags[p->b->tsize] = p->tag;
p->b->tsize++;
item = p;
p = p->p;
free(item);
}
}
void
db_assign_book_authors(struct bookauth *list)
{
struct bookauth *item = NULL;
struct bookauth *p = NULL;
p = list;
while (NULL != p) {
if (NULL != p->b && NULL == p->b->a && p->b->asize > 0) {
p->b->a = kcalloc(p->b->asize, sizeof(Author));
p->b->asize = 0; // use as counter for insert
}
p->b->a[p->b->asize] = p->a;// add author
p->b->asize++;
item = p;
p = p->p;
free(item);
}
}
static struct booktag *
db_load_books_tags(struct kreq *r, BookAdv **books, int count, int limit, int offset)
{
struct ksqlstmt *stmt;
struct booktag *p = NULL;
struct booktag *item = NULL;
int i;
int64_t bid;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_TAGS],
STMT_BOOKS_TAGS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct booktag));
item->tag = kstrdup(ksql_stmt_str(stmt, 0));
bid = ksql_stmt_int(stmt, 1);
for (i = 0; i < count && NULL == item->b; i++) {
if (books[i]->b.id == bid) {
item->b = books[i];
item->b->tsize++;
}
}
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
return p;
}
struct bookauth *
db_load_books_authors(BookAdv **books, int count, struct ksqlstmt *stmt)
{
struct bookauth *p = NULL;
struct bookauth *item = NULL;
int i;
int64_t bid;
while (KSQL_ROW == ksql_stmt_step(stmt)) {
// add author to list, link related book and increment asize
item = kcalloc(1, sizeof(struct bookauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
bid = ksql_stmt_int(stmt, 2);
for (i = 0; i < count && NULL == item->b; i++) {
if (books[i]->b.id == bid) {
item->b = books[i];
item->b->asize++;
}
}
item->p = p;
p = item;
}
return p;
}
int
db_books_load(struct kreq *r, BookAdv **books, int limit, int offset)
{
if (limit < 0 || offset < 0) {
return 0;
}
struct ksqlstmt *stmt;
struct bookauth *p_a;
struct booktag *p_t;
int count = 0;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS],
STMT_BOOKS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
books[count] = kcalloc(1, sizeof(BookAdv));
db_book_fill(&books[count]->b,stmt);
books[count]->asize = 0;
books[count]->tsize = 0;
count++;
}
ksql_stmt_free(stmt);
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOKS_AUTHORS],
STMT_BOOKS_AUTHORS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
p_a = db_load_books_authors(books, count, stmt);
ksql_stmt_free(stmt);
db_assign_book_authors(p_a);
p_t = db_load_books_tags(r, books, count, limit, offset);
db_assign_book_tags(p_t);
return count;
}
static void
db_book_full_tags(BookAdv *b, struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
struct booktag *p = NULL;
struct booktag *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_TAGS],
STMT_BOOK_TAGS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct booktag));
item->tag = kstrdup(ksql_stmt_str(stmt, 0));
item->b = b;
item->b->tsize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
db_assign_book_tags(p);
}
static void
db_book_full_authors(BookAdv *b, struct kreq *r, int64_t id) {
struct ksqlstmt *stmt;
struct bookauth *p = NULL;
struct bookauth *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_AUTHORS],
STMT_BOOK_AUTHORS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct bookauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
item->b = b;
item->b->asize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
// assign authors to book
db_assign_book_authors(p);
}
static void
db_book_full_data(BookFull *b, struct kreq *r, int64_t id) {
struct ksqlstmt *stmt;
struct bookdata *p = NULL;
struct bookdata *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK_DATA],
STMT_BOOK_DATA);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct bookdata));
item->d = kcalloc(1, sizeof(BookData));
item->d->name = kstrdup(ksql_stmt_str(stmt, 0));
item->d->format = kstrdup(ksql_stmt_str(stmt, 1));
item->d->size = ksql_stmt_int(stmt, 2);
item->b = b;
item->b->dsize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
while (NULL != p) {
if (NULL != p->b && NULL == p->b->data && p->b->dsize > 0) {
p->b->data = kcalloc(p->b->dsize, sizeof(BookData));
p->b->dsize = 0; // use as counter for insert
}
p->b->data[p->b->dsize] = p->d;
p->b->dsize++;
item = p;
p = p->p;
free(item);
}
}
BookFull *
db_book_load(struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
BookFull *book;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_BOOK],
STMT_BOOK);
ksql_bind_int(stmt, 0, id);
if (KSQL_ROW != ksql_stmt_step(stmt)) {
ksql_stmt_free(stmt);
return(NULL);
}
book = kcalloc(1, sizeof(BookFull));
db_book_fill(&book->ba.b, stmt);
book->timestamp = ksql_stmt_int(stmt, 5);
book->pubdate = ksql_stmt_int(stmt, 6);
book->isbn = strornull(stmt, 7);
book->lccn = strornull(stmt, 8);
book->path = strornull(stmt, 9);
book->uuid = strornull(stmt, 10);
book->has_cover = ksql_stmt_int(stmt, 11);
book->lang = strornull(stmt, 12);
book->publisher = strornull(stmt, 13);
ksql_stmt_free(stmt);
db_book_full_tags(&book->ba, r, id);
db_book_full_authors(&book->ba, r, id);
db_book_full_data(book, r, id);
return book;
}

282
db_series.c Normal file
View File

@ -0,0 +1,282 @@
/* $Id$ */
/*
* Copyright (c) 2016 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <kcgi.h>
#include <kcgijson.h>
#include "ksql.h"
#include "extern.h"
enum stmt {
STMT_SERIES,
STMT_SERIES_AUTHORS,
STMT_SERIE,
STMT_SERIE_BOOKS,
STMT_SERIE_AUTHORS,
STMT__MAX
};
static const char *const stmts[STMT__MAX] = {
/* STMT_SERIES */
"SELECT series.id, series.name, count(book) FROM series \
LEFT OUTER JOIN books_series_link ON books_series_link.series = series.id \
GROUP BY series.id ORDER BY series.id LIMIT ? OFFSET ?",
/* STMT_SERIES_AUTHORS */
"SELECT DISTINCT authors.id, authors.name, books_series_link.series \
FROM authors, books_authors_link, books_series_link \
WHERE books_authors_link.book = books_series_link.book AND books_authors_link.author = authors.id \
AND books_series_link.series IN ( SELECT id FROM series ORDER BY series.id LIMIT ? OFFSET ?)",
/* STMT_SERIE */
"SELECT series.id, series.name FROM series WHERE series.id = ?",
/* STMT_SERIE_BOOKS */
"SELECT books.id, title, series_index FROM books \
LEFT OUTER JOIN books_series_link ON books.id = books_series_link.book \
WHERE books_series_link.series = ?",
/* STMT_SERIE_AUTHORS */
"SELECT DISTINCT authors.id, authors.name \
FROM authors, books_authors_link, books_series_link \
WHERE books_authors_link.book = books_series_link.book AND books_authors_link.author = authors.id \
AND books_series_link.series = ?",
};
struct seriesbook {
SeriesFull *s;
Book *b;
struct seriesbook *p;
};
struct seriesauth {
SeriesAdv *s;
Author *a;
struct seriesauth *p;
};
void
db_series_unfill(Series *p)
{
if (NULL == p)
return;
free(p->name);
}
void
db_series_free(Series *p)
{
if (NULL == p)
return;
db_series_unfill(p);
free(p);
}
void
db_series_adv_free(SeriesAdv *p)
{
if (NULL == p)
return;
db_series_unfill(&p->s);
free(p);
}
static void
db_assign_series_authors(struct seriesauth *list)
{
struct seriesauth *item = NULL;
struct seriesauth *p = NULL;
p = list;
while (NULL != p) {
if (NULL != p->s && NULL == p->s->a && p->s->asize > 0) {
p->s->a = kcalloc(p->s->asize, sizeof(Author));
p->s->asize = 0; // use as counter for insert
}
p->s->a[p->s->asize] = p->a;
p->s->asize++;
item = p;
p = p->p;
free(item);
}
}
static struct seriesauth *
db_load_series_authors(SeriesAdv **series, int count, struct ksqlstmt *stmt)
{
struct seriesauth *item = NULL;
struct seriesauth *p = NULL;
int64_t sid = -1;
int i = 0;
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct seriesauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
sid = ksql_stmt_int(stmt, 2);
for (i = 0; i < count && NULL == item->s; i++) {
if (series[i]->s.id == sid) {
item->s = series[i];
item->s->asize++;
}
}
item->p = p;
p = item;
}
return p;
}
static struct seriesbook*
db_load_series_books(struct kreq *r, SeriesFull *series, int64_t id)
{
struct ksqlstmt *stmt;
struct seriesbook *p = NULL;
struct seriesbook *item = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_SERIE_BOOKS],
STMT_SERIE_BOOKS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1,sizeof(struct seriesbook));
Book *b = kcalloc(1, sizeof(Book));
b->id = ksql_stmt_int(stmt, 0);
b->title = kstrdup(ksql_stmt_str(stmt, 1));
b->s_idx = ksql_stmt_int(stmt, 2);
b->s = series->s.s;
item->b = b;
item->s = series;
series->s.books++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
return p;
}
static void
db_assign_series_books(struct seriesbook *list)
{
struct seriesbook *p = NULL;
struct seriesbook *item = NULL;
p = list;
while (NULL != p) {
if (NULL != p->s && NULL == p->s->b && p->s->s.books > 0) {
p->s->b = kcalloc(p->s->s.books, sizeof(Book));
p->s->s.books = 0; // use as counter for insert
}
p->s->b[p->s->s.books] = p->b;
p->s->s.books++;
item = p;
p = p->p;
free(item);
}
}
SeriesFull *
db_serie_load(struct kreq *r, int64_t id)
{
struct ksqlstmt *stmt;
SeriesFull *series;
struct seriesauth *p = NULL;
struct seriesauth *item = NULL;
struct seriesbook *list = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_SERIE],
STMT_SERIE);
ksql_bind_int(stmt, 0, id);
if (KSQL_ROW != ksql_stmt_step(stmt)) {
ksql_stmt_free(stmt);
return(NULL);
}
series = kcalloc(1, sizeof(SeriesFull));
series->s.s.id = ksql_stmt_int(stmt, 0);
series->s.s.name = kstrdup(ksql_stmt_str(stmt, 1));
series->s.books = 0;
series->s.asize = 0;
ksql_stmt_free(stmt);
list = db_load_series_books(r, series, id);
db_assign_series_books(list);
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_SERIE_AUTHORS],
STMT_SERIE_AUTHORS);
ksql_bind_int(stmt, 0, id);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
item = kcalloc(1, sizeof(struct seriesauth));
item->a = kcalloc(1, sizeof(Author));
item->a->id = ksql_stmt_int(stmt, 0);
item->a->name = kstrdup(ksql_stmt_str(stmt, 1));
item->s = &series->s;
item->s->asize++;
item->p = p;
p = item;
}
ksql_stmt_free(stmt);
db_assign_series_authors(p);
return series;
}
int
db_series_load(struct kreq *r, SeriesAdv **series, int limit, int offset)
{
if (limit < 0 || offset < 0) {
return 0;
}
struct ksqlstmt *stmt;
int count = 0;
struct seriesauth *p = NULL;
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_SERIES],
STMT_SERIES);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
while (KSQL_ROW == ksql_stmt_step(stmt)) {
series[count] = kcalloc(1, sizeof(SeriesAdv));
series[count]->s.id = ksql_stmt_int(stmt, 0);
series[count]->s.name = kstrdup(ksql_stmt_str(stmt, 1));
series[count]->books = ksql_stmt_int(stmt, 2);
series[count]->asize = 0;
count++;
}
ksql_stmt_free(stmt);
ksql_stmt_alloc(r->arg, &stmt,
stmts[STMT_SERIES_AUTHORS],
STMT_SERIES_AUTHORS);
ksql_bind_int(stmt, 0, limit);
ksql_bind_int(stmt, 1, offset);
p = db_load_series_authors(series, count, stmt);
ksql_stmt_free(stmt);
db_assign_series_authors(p);
return count;
}

52
extern.h
View File

@ -14,6 +14,8 @@
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ksql.h"
#ifndef EXTERN_H
#define EXTERN_H
@ -100,6 +102,47 @@ typedef struct
char *publisher;
} BookFull;
typedef struct
{
Series s;
int64_t books;
Author **a;
size_t asize;
} SeriesAdv;
typedef struct
{
SeriesAdv s;
Book **b;
} SeriesFull;
/*
* Linked list authors of book.
*/
struct bookauth {
Author *a;
BookAdv *b;
struct bookauth *p;
};
/*
* Linked list tags of book.
*/
struct booktag {
char *tag;
BookAdv *b;
struct booktag *p;
};
/*
* Linked list book data.
*/
struct bookdata {
BookData *d;
BookFull *b;
struct bookdata *p;
};
__BEGIN_DECLS
BookFull *db_book_load(struct kreq *r, int64_t id);
@ -108,14 +151,23 @@ int db_books_count(struct kreq *r);
void db_book_free(Book *p);
void db_book_adv_free(BookAdv *p);
void db_book_full_free(BookFull *p);
void db_book_fill(Book *book, struct ksqlstmt *stmt);
struct bookauth * db_load_books_authors(BookAdv **books, int count, struct ksqlstmt *stmt);
void db_assign_book_authors(struct bookauth *list);
void db_author_unfill(Author *p);
AuthorFull *db_author_load(struct kreq *r, int64_t id);
int db_authors_load(struct kreq *r, AuthorAdv **authors, int limit, int offset);
void db_author_free(Author *p);
void db_author_adv_free(AuthorAdv *p);
void db_series_unfill(Series *p);
int db_series_load(struct kreq *r, SeriesAdv **series, int limit, int offset);
SeriesFull *db_serie_load(struct kreq *r, int64_t id);
void db_series_free(Series *p);
void db_series_adv_free(SeriesAdv *p);
char * strornull(struct ksqlstmt *stmt, int col);
void db_close(struct kreq *);
int db_open(struct kreq *, const char *);

62
main.c
View File

@ -313,12 +313,68 @@ static void
sendseries(struct kreq *r)
{
struct kjsonreq req;
int res, i = 0;
SeriesFull *s = NULL;
int page = initpage(r);
int per = initperpage(r);
int64_t id = idfrompath(r);
http_open(r, KHTTP_200);
kjson_open(&req, r);
kjson_obj_open(&req);
kjson_putstringp(&req, "data", "series");
kjson_obj_close(&req);
if (id >= 0)
s = db_serie_load(r, id);
if (id >= 0 && NULL == s) {
puterror(&req, "Unknown series");
} else if (id >= 0) {
kjson_obj_open(&req);
kjson_putintp(&req, "id", s->s.s.id);
kjson_putstringp(&req, "name", s->s.s.name);
if (s->s.books>0) {
kjson_arrayp_open(&req, "books");
for (int64_t j = 0; j<s->s.books; j++) {
putbook(&req, s->b[j]);
kjson_obj_close(&req);
}
kjson_array_close(&req);
}
if (s->s.asize > 0) {
kjson_arrayp_open(&req, "authors");
for (size_t j=0; j<s->s.asize; j++) {
putauthor(&req, s->s.a[j]);
kjson_obj_close(&req);
}
kjson_array_close(&req);
}
kjson_obj_close(&req);
} else {
kjson_array_open(&req);
SeriesAdv **series = kcalloc(per, sizeof(SeriesAdv));
res = db_series_load(r, series, per, per * (page-1));
while (i < res) {
kjson_obj_open(&req);
kjson_putintp(&req, "id", series[i]->s.id);
kjson_putstringp(&req, "name", series[i]->s.name);
kjson_putintp(&req, "count", series[i]->books);
if (series[i]->asize > 0) {
kjson_arrayp_open(&req, "authors");
for (size_t j=0; j<series[i]->asize; j++) {
kjson_obj_open(&req);
kjson_putintp(&req, "id", series[i]->a[j]->id);
kjson_putstringp(&req, "name", series[i]->a[j]->name);
kjson_obj_close(&req);
}
kjson_array_close(&req);
}
kjson_obj_close(&req);
db_series_adv_free(series[i]);
i++;
}
free(series);
kjson_array_close(&req);
}
kjson_close(&req);
}