Task filters (#243)

Fix not returning errors

Fix integration tests

Add more tests

Make task filtering actually work

Change tests

Fix using filter conditions

Fix test

Remove unused fields

Fix static check

Remove start and end date fields on task collection

Fix misspell

add filter logic when getting tasks

Add parsing filter query parameters into task filters

Start adding support for filters

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/243

vendor/github.com/iancoleman/strcase/camel.go

@@ -0,0 +1,81 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Ian Coleman
+ * Copyright (c) 2018 Ma_124, <github.com/Ma124>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, Subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or Substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package strcase
+
+import (
+	"strings"
+)
+
+// Converts a string to CamelCase
+func toCamelInitCase(s string, initCase bool) string {
+	s = addWordBoundariesToNumbers(s)
+	s = strings.Trim(s, " ")
+	n := ""
+	capNext := initCase
+	for _, v := range s {
+		if v >= 'A' && v <= 'Z' {
+			n += string(v)
+		}
+		if v >= '0' && v <= '9' {
+			n += string(v)
+		}
+		if v >= 'a' && v <= 'z' {
+			if capNext {
+				n += strings.ToUpper(string(v))
+			} else {
+				n += string(v)
+			}
+		}
+		if v == '_' || v == ' ' || v == '-' || v == '.' {
+			capNext = true
+		} else {
+			capNext = false
+		}
+	}
+	return n
+}
+
+// ToCamel converts a string to CamelCase
+func ToCamel(s string) string {
+	if uppercaseAcronym[s] {
+		s = strings.ToLower(s)
+	}
+	return toCamelInitCase(s, true)
+}
+
+// ToLowerCamel converts a string to lowerCamelCase
+func ToLowerCamel(s string) string {
+	if s == "" {
+		return s
+	}
+	if uppercaseAcronym[s] {
+		s = strings.ToLower(s)
+	}
+	if r := rune(s[0]); r >= 'A' && r <= 'Z' {
+		s = strings.ToLower(string(r)) + s[1:]
+	}
+	return toCamelInitCase(s, false)
+}