From fadd085b57100e53ed3eba13c998912b1b260037 Mon Sep 17 00:00:00 2001
From: Jan Guzej <guzej.jan@cpost.cz>
Date: Sat, 26 Oct 2019 11:54:27 +0200
Subject: [PATCH 1/2] Checking and warrying on possible duplicity

---
 cps/editbooks.py          |  6 ++++++
 cps/helper.py             | 10 ++++++++++
 cps/templates/layout.html |  5 +++++
 3 files changed, 21 insertions(+)

diff --git a/cps/editbooks.py b/cps/editbooks.py
index 2da9991f..f8431725 100644
--- a/cps/editbooks.py
+++ b/cps/editbooks.py
@@ -567,6 +567,12 @@ def upload():
             filepath = os.path.join(config.config_calibre_dir, author_dir, title_dir)
             saved_filename = os.path.join(filepath, title_dir + meta.extension.lower())
 
+            if unicode(title) != u'Unknown' and unicode(authr) != u'Unknown':
+                entry = helper.check_exists_book(authr, title)
+                if entry:
+                    book_html = flash(_(u"Uploaded book probably exists in the library, consider to change before upload new: ")
+                        + Markup(render_title_template('book_exists_flash.html', entry=entry)), category="warning")
+
             # check if file path exists, otherwise create it, copy file to calibre path and delete temp file
             if not os.path.exists(filepath):
                 try:
diff --git a/cps/helper.py b/cps/helper.py
index b45300c0..81addeb8 100644
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -780,7 +780,17 @@ def get_download_link(book_id, book_format):
     else:
         abort(404)
 
+def check_exists_book(authr,title):
+    db.session.connection().connection.connection.create_function("lower", 1, lcase)
+    q = list()
+    authorterms = re.split(r'\s*&\s*', authr)
+    for authorterm in authorterms:
+        q.append(db.Books.authors.any(func.lower(db.Authors.name).ilike("%" + authorterm + "%")))
 
+    return db.session.query(db.Books).filter(
+        and_(db.Books.authors.any(and_(*q)),
+            func.lower(db.Books.title).ilike("%" + title + "%")
+            )).first()
 
 ############### Database Helper functions
 
diff --git a/cps/templates/layout.html b/cps/templates/layout.html
index 72eba890..9ffb04f8 100644
--- a/cps/templates/layout.html
+++ b/cps/templates/layout.html
@@ -99,6 +99,11 @@
         <div id="flash_info" class="alert alert-info">{{ message[1] }}</div>
       </div>
       {%endif%}
+      {%if message[0] == "warning" %}
+      <div class="row-fluid text-center" style="margin-top: -20px;">
+        <div id="flash_warning" class="alert alert-warning">{{ message[1] }}</div>
+      </div>
+      {%endif%}
       {%if message[0] == "success" %}
       <div class="row-fluid text-center" style="margin-top: -20px;">
         <div id="flash_success" class="alert alert-success">{{ message[1] }}</div>

From 94ae9937f0fdef4b6c253af177d30c8442c4e6f6 Mon Sep 17 00:00:00 2001
From: Jan Guzej <guzej.jan@cpost.cz>
Date: Sat, 26 Oct 2019 13:45:06 +0200
Subject: [PATCH 2/2] Add flash show book template

---
 cps/templates/book_exists_flash.html | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 cps/templates/book_exists_flash.html

diff --git a/cps/templates/book_exists_flash.html b/cps/templates/book_exists_flash.html
new file mode 100644
index 00000000..b0855120
--- /dev/null
+++ b/cps/templates/book_exists_flash.html
@@ -0,0 +1,3 @@
+<a href="{{ url_for('web.show_book', book_id=entry.id) }}" data-toggle="modal" data-target="#bookDetailsModal" data-remote="false">
+	<span class="title">{{entry.title|shortentitle}}</span>
+</a>
\ No newline at end of file